Team:Potsdam Bioware/Lab/Group Meetings

From 2012.igem.org

Group Meetings

Summary 2012-03-12

presentation of topics, progress and deepening of projects
Attendees: Christopher, Tom S., Rico, Kevin, Kerstin, Sascha, Mario, Tom O.

magnetosome-beads: Christopher

idea: functionalization of magnetic beads with proteins display method with magnetic beads:

knock-out mutant for magnetosomes – biosynthesis and transformation with essential gene
- for protein interaction, transcribtion of gene and biosynthesis of magnetosomes
- purification with magnetic force

problems & to do: which stains are suitable? ‘’Magnetospirillum WT‘‘ or ‘‘E.coli‘‘ transformation?

hypermutated antibody by transfection: Rico

idea: improvement of antibody affinity through integrated deaminase which leads to hypermutation

cell line with antibody + Fc-receptor for antibody presentation on surface
- virus with antigen on envelope that can be bind specifically by antibody and releases incorpo-rated deaminase gene into cell
- hypermutation
- test for affinity

problems & to do: mechanism of hypermutation? CHO cell line (able to hypermutate sequences?) or myeloma cells?

voltage responding proteins: Sascha

idea: linkage of proteins to voltage sensitive transmembrane domains

application for voltotaxis via PI3-kinase for example

problems & to do: stability without membrane connection?

Next meeting: Wednesday 4th April at 5 pm, B0.01 H25!

Summary 2012-04-04

Deepening of project ideas Attendees: Christopher, Tom S., Rico, Kevin, Kerstin, Sascha, Tom O. Presentation of project by Rico

hypermutation by protein E2 of Hepatitis C Virus
protein E2 leads to hypermutation in B-cells by activation of AID through CD81 (activation in-duced Deaminase)

3 concepts:

myeloma cells with antibody on surface. Addition of E2 and virus with antigen on surface + siRNA against AID – reduction of AID activity after virus binding
myeloma cells that secrete antibody, addition of E2 and antigen on surface - saturation of virus by improved antibody
myeloma cells that secrete antibody and AID knock-out, addition of virus with AID on surface and E2 – induction of hypermutations through binding

(E2 with linker peptide and antigen) to do: are there any publications that describe E2? Is the mechanism of action well known? Why is CD81 important and which cells lines are robust enough to survive the pathway? How can you control CD81? How long does the hypermutation take? How is it possible to select cells? idea: patent, peptide linker for BioBrick, DNA-Origami as linker? magnetosomes

talk to people from the MPI, exists any application for the project mentioned above?

Next meeting: Friday, 13th April, 8 am (Vorlesungszeitraum)

Summary 2012-04-20

Attendees: Tom S., Rico S., Tom O., Kevin S., Mario K., Tobias P., Kerstin W., Xenia A., Barbara M., Katharina T., Stefan G., Maria K., Tarek S., Christopher K., Sascha L., Laura R. 1. reminder: all team members have to register for wiki! 2. presentation of wiki page and editing of wiki (Tom) Presentation was uploaded! 3. deepening of the project

A. magnetosomes (Christopher): idea was rejected, preparation/creation of knock-out mutants would have been too time consuming and can thus not be realized and additionally a lot of genetic know-how would have been needed
B. hypermutation by protein E2 of Hepatitis C Virus (Rico)

protein E2 leads to hypermutation in B-cells by activation of AID via CD81 (activation induced Deaminase) idea und goal of the project:

- increasing antibody -activity and specificity + adjustable hypermutation by AID
- binding of virus-antigen to antibody on surface of beads have to be selected
- cells to be used: CHO

possible stages of the project:

- induction of hypermutation
- transfection of cells with antibody
- transfection of AID + detection/proof of hypermutation
- binding of virus particles to antibody on surface
- Establishment of selection system

Which steps can be realized during the project?

antibody on cell surface?
can virus bind?

to do:

- possible usage of camellid antibody?
- is a switchable expression of surface-antibody by Tet on/off- or Cre-Lox-system possible?
C. Adeno-assoziated Virus = AAV (Tarek)

idea:

- using AAV as vector, transforming transgenes (GOI) between ITRs (inverted terminal repeats) of AAV
- multiplication of transgenes would be possible via helper plasmid and not non-pathogenic AAV helper plasmids

Advantage: good purification possible, expression can be controlled Disadvantage: expression "without help" slowly, possible damage of genes by undirected integra-tion

Next meeting: Friday 27th of April 8:00 am (Vorlesungszeitraum)

Following tasks have to be prepared:

iGEM-judging criteria, creating time table (Kevin)
iGEM-requirements for cloning and Biobricks (Maria & Laura)
Sponsoring (Kathi, Mario & Tom)
topical focus:
- How to design the virus construct? (Tobias, Xenia und Tarek)
- Transfection von camellid-AK (Sascha)
- AID-specificity (Rico, Chris) Chris will start with the following paper Paper or already known?
- Tet-on/Tett-off- und Cre-Lox-systeme for switchable expression (Tom & Stefan)

--> to Rico and Tarek: could you maybe upload your presentation from the 20th April?

Summary 2012-04-12

Attendees: Mario K., Laura R., Tobias P., Christopher K., Kerstin W., Maria K., Stefan G., Rico S., Tarek S. Xenia A., Katharina T., Sascha L. Tom O., Tom S., Kevin S., 1. Presentation of iGEM in general for new group members: Kevin

information about judging criteria are necessary!

2. presentation of Biobricks in general and of already existing parts: Maria 3. sponsoring

a sponsoring letter should be reviewed for a second time and should be normed to one page, as soon as it is ready we will have to talk about it again; application for financial help for iGEM pro-ject ( Kristian)

4. presentation of iGEM 2010 Freiburg Bioware for possible virus construction: Tobias. 5. discussion of transfection:

stable transfection is time consuming and complicated, CHO-cells should have integrated the Flp- ( Invitrogen with possible concession?), or with contact to anyone? Further information will have to be discussed at the next meeting.

6. presentation of Tet on Tet off systems by Stefan. 7. presentation of time table from Thursday by Maria.

separation into groups with different partial projects:
- Judging: Kevin
- CHO: Tom O., Sascha, Tarek, Stefan, Maria, Kerstin
- AID: Rico, Tom S., Chris, Mario, Basia
- Virus: Laura, Tobias, Kathi, Xenia
- design of logo: Kathi
- Sponsoring: Tom S., Mario, Kathi

8. iGEM e.V.

Kristian wrote the membership bid for iGEM e.V., members will have to sign
- advantages of iGEM e.V.: receipts can be easily issued via the society. Furthermore the collec-tion of donations can be handled more easily.

Next meeting: Wednesday, 02th May 6 pm

Summary 2012-05-04

Attendees: Tom, Rico, Tom O., Kevin, Stefan, Basia, Tarek, Kathi, Maria, Xenia, Christopher, Tobias, Laura, Sascha, Mario, Kerstin Protocol: Kevin Moderation: Kerstin 1. Discussion of time tables by Basia, groups are up to date 2. Presentation by Kathi: logo

4 logos can be choosen
more logos will be uploaded for a further discussion/voting

3. Presentation by Xenia: AAV2-virus (Freiburg iGEM 2010)

presenting the way of function
alternatives in plasmids (3plasmids)
how to create the plasmids
transfection of target cells
possible purification approaches

4. progress report by antibody group

desired camellid antibody not possible
alternative: mouse -> problem: heavy and light chain

- quest for an antibody with low affinity, for mutation by AID that can possibly leads to a better affinity mouse: c-Myc antibody single domain antibody: lysozyme further problems: is there a convenient method to measure affinity with cells? 5. presentation by Sascha: Flp-in system

way of function of the system (plasmids)
prize and needed material
transfection method: advantage and disadvantage

6. presentation by Rico: AID

AID-transfection + vector
strategy and proceeding
selection method
process and material

7. collecting ideas for sponsoring

for donations from a different field than biology, arguments have to be found to make our topic more interesting

Next meeting: Tuesday 11th May

Summary 2012-05-11

Attendees: Tom, Rico, Tom O., Kevin, Stefan, Basia, Tarek, Kathi, Maria, Xenia, Christopher, Tobias, Laura, Sascha, Mario, Kerstin

CHO cells arrived!!!
presentation and comparison of possible antibodies
- anti-c-Myc or anti-lysozyme
- acquisition of antibody not clear yet
c-myc antibody from project group Braunschweig
further ideas?
- which size of antibody/ Fab fragment is eligible for Flp-in system
- how stable is the system?
- transmembrane domain?
- is the antibody compatible with the Flip-in system
measuring the affinity by fluorescence polarizing
presentation by Christopher of expression vectors
decision for logo 2!

Next meeting: Tuesday 15th May 6 pm -> subsequent to meeting: introduction into lab

Summary 2012-05-12

Attendees: Basia, Stefan, Kerstin, Chris, Sascha, Tobias, Mario, Kathi, Kevin, Rico, Tom, Maria
1. pictuuuuuuures, group and single pictures were taken! 2. antibody

response from Serge Muyldermans, possible antibody from Uni Brüssel
no further news

3. presentation Biobrick assembly standard part 1: Basia

RFC10
RFC20
RFC23 (Biofusion, Silver Lab)

part 2: Sascha

RFC25
RFC24
RFC21 (Berkeley BBb format)
RFC12 (Tom Knight BB2)
Gibson Assembly

4. theoretical safety introduction

lab manual with operating instructions, phone numbers, equipment manuals, order directions can be found under Protokolle
instructions for virus group (15-05)
A convinient date for everyone? Tuesday, 22-05 (6 pm) or Friday 25-05?

No meeting on Friday!!!
Next meeting: Tuesday 22-05, 6 pm

Summary 2012-05-22

Attendees: Basia, Stefan, Chris, Sascha, Kathi, Rico, Tom, Maria Protocol: Kathi Moderation: Basia 1. AID

AID is delivered in distribution kit, will not be sequenced by us
Chris talks again about the pTUNE- vector (see presentation)
AID das fusion protein with fluorescence reporter for localization

2. Ordering

can be organized and documented over wiki
chemicals, reagents and consumable materials can be taken from the working group if not too much --> PLEASE do not contaminate when using
a vacuum apparatus and a pipette boy is needed for cell culture
Each team should present the partial group-project plan

3. start of lab work

next week culturing cells will start, people with know-how should be assigned to cell culture group
collection of vector and oligo material via Geneious, lab computer has Geneious account
Geneious-version 5.1.7

Next meeting: Friday, 25-05, 8:15 am

Summary 2012-06-01

Attendees: Tobi, Laura, Sascha, Xenia, Basia, Kevin, Rico, Tom S., Tareck, Mario, Chris Protocol: Chris Moderation: Stefan 1. Organization

ordering:

Ordering numbers and costumer ID can be found in the lab manual, all orders have to be documented on the wiki page The delivery note has to be collected and stored!!!!!

iGEM-Distribution-Kit arrived, stored at -20°C in freezer

-> DNA should be tested by test digestion

program Geneiuos has to be started from device C:\Programme... (version on desktop does not work)
a list of needed plasmids should be generated

2. sponsoring

application for financial help from the faculty was approved! We will possible receive the whole sum
today: meeting with Sigma Aldrich rep -> list with needed materials

3.actuall progress report

- AID:
next week: theoretical cloning -> expression vector for Biobricks?
there already exist several eukaryotic expression vector in the lab
AID construct: NES knock out & additional NLS, literature research has to be done to get further information on fusion proteins that make the AID more specific?
- virus team:
meeting with Sven
it has to be clarified if virus can infect cells
plasmids construction should be planned
- antibody
MTA for antibody should be signed
problem with antigen: RNA-Polymerase, cannot be declared as therapeutically target
possible solution: single chain that already exists can be used (lab stock)
problem: already high affine binding (nM), should be mutated before to apply for affinity maturation via AID
Kristina should order it from Freiburg
suggestion: scFv coupled to Fc domain, good binding and good expression guaranteed
still open requests for scFvs: Apergillus... advantage: affinity can be optimized

4. LMU München-Kongress Synthetische Biologie

journey with overnight stay
Mario?

5. BMBF Kongress in Berlin 28-06-2012

people for representation (Tom, Kevin, Mario, Chris ), meeting the other iGEM teams
a new poster has to be designed

Next meeting: Friday, 08-06, 8:15 am

Summary, 2012-06-08

Attendees: Maria, Rico, Tobi, Sascha, Xenia, Basia, Tareck, Mario, Chris, Kerstin
Protocol: Rico
Moderation: Tarek
1. virus group

problem with primer design was discussed

2. orders for Eppendorf and Sigma Aldrich

discount-list have to be completed on the wiki page

3. Congress BMBF

Participants: Tom S., Tarek und someone from virus group

4. antibody

further possibilities can be discussed:

- anti-EGFR (advantage: possible selection system for mutagenesis by AID can be tested)
- antibody against CRF2 (problem: sequence cannot be published)
- antibody against cholera toxin (problem: binding of pentameter ) 5. German website

first version is online

Next meeting: Friday, 15-06, 8:15 am

Summary 2012-06-12

Attendees: Mario, Laura, Chris, Basia, Sascha, Tareck, Tom S., Tom, Rico
Protocol: Xenia Moderation: Maria
1. Sponsoring:
Application for StudiumPlus ready, no reply so far; document will be delivered on Monday (Maria)
Greenpaace will be contacted in Potsdam (Maria) and Berlin (Laura) 2. progress report

Virus team
- primer construct leads to hair pins, should not cause any trouple due to high temperature
- second primer should have the same Tm and annealing temperature
- request for plasmid with CMV promoter in iGEM distribution kit (Sven?) – also necessary for AID group
- Xba1 restriction side has to be prolonged by 2 aa to guarantee the enzyme activity
- PolyA sequence present?
AID:
- AID will be completed by NES (Nuclear exported Sequence)
- CMV (see virus team)
Antibody:
- search for switchable system: cre-lox-system?
- idea for affinity measurement?
scFv anti-EGFR

LAB WORK:
CHO cell were taken into culture
3. prize and offer:

prize list and chemicals were uploaded on the wiki page
25% discount for all enzymes of Thermo Fischer scientific
Invitrogen GeneArt: 25 Cent pro base pair

4. BMBF
Poster for BMBF should be finished till 18-06!
Responsible for poster are: Tom S. (AID), Tarek (AK), Laura (Virus)

Tom S. will design animation, Laura will write team info, Rico will write introduction
People who will present the poster: Laura, Chris, Maria, Tarek, Mario, Xenia
What should be presented on the poster?
introduction (AID)
explanation antibody, what was done so far?
possible statistics for market potential of antibodies

5. time table

end of September everything should be finished!!!!
every group designs time table, publishing on internal wiki
what do we have? What needs to be done and in which week?)

6. Phage Display

expression vector can be taken from last year’s project
EGFR domain will be produced by virus group

Safety assessment: Sascha, Mario, Chris

Next meeting: Friday, 22-06 8:15 am

Summary 2012-06-22

Attendees: Kathi, Stefan, Basia, Sascha, Kerstin, Tobias, Laura, Chris, Kevin, Tom S., Tom O., Xenia, Maria
Protocol: Maria Moderation: Kevin
1. AID

primer for Wt are designed and ordered
AID from Biobrick Kit will have to be transformed (AID in mini backbone)
vector psBIC3 with CMV promoter and RBS as glycerol stock
quest for expression vector with restriction site between CMV and Poly A

Biobrick: assembly standard 25 a) CMV promoter + AID b) CMV promoter + kozak sequence + NLS + AID without NES time table for groups online

verification of AID Biobrick
competent cells have to be made (Monday)
Basia will culture 50ml of ‘’E.coli’’

2. Antibody Antibody construct with: Signal peptide + scFv + Fc domain + LoxP site + transmembrane domain + reporter gene + LoxP site with Intron/Exon structure 3. Virus

primer adjustment, ordering on Friday (22-06)

4. official beginning of lab work on Monday

multistep-pipette is functional and can be used
buffer for restriction enzymes received

> please complete table UP12_Materialllager
Important: using the labjournal and protocols for official presentation! 5. BMBF

for all attendees: meeting for poster presentation and discussion about concept on Monday) am

Important: information about possible cooperation with other iGEM teams 6. Ethics

Greenpeace and Nabu can be contacted
further possible discussion partners: PETA?
discussion about Synthetic Biology, gene manipulated organisms, animal testing for research and medicine

Next meeting for BMBF congress: Monday at 9 am
Next meeting in general: Friday 29-06 8:15 am

Summary 2012-06-29

Attendees: Tom O., Tom S., Kevin, Rico, Xenia, Kathi, Chris, Sascha, Tarek, Mario, Stefan, Tobi-as, Kerstin
Protocol: Kerstin
Moderation: Kevin

competent cells in freezer (-80°C) and can be used

Report of the BMBF meeting

poster of iGEM team uploaded on wiki
possible cooperation with iGEM team Freiburg (DNA binding domain)
suggestions for German wide ethic project: "Tag der Synthetischen Biologie" at the 25th August --> each team should organize something in their own home city
coordination of day via Facebook
free licenses for Geneious as sponsoring?
antibody group presents construct and Biobricks
planned meeting with genetic working group to talk about intron/exon sequence

Measuring the affinity by QCM? Important during the next weeks:

progress report of each project; completing wiki information; ordering new lab material and con-sumables, should be ordered today (29-06) by Mario, Stefan, Sascha
Next week Monday to Wednesday S1 inspection of whole Haus 25

Next meeting: Friday 06-07 8:15 am

Summary 2012-07-13

Attendees: Tom S., Rico, Tom O., Mario, Basia, Chris, Sascha, Xenia, Maria, Stefan, Laura
Protocol: Laura
Moderation: Sascha 1. poster

Poster has to be revised, AID and antibody construct have to be added

2. abstract

Should be finished and uploaded until the 15-07

3. expenses and lab inventory

Sascha and Mario will actualize the table
Waste and used items for autoclave were collected under the vent
Tom S. and Rico will actualize list for lab material

4. time table of each group

completing list of work steps and time table of each member
phage display?!

5. Human Practice

Akademie der Wissenschaften: possible cooperation, disadvantage: 150€ for 1 room and
advertisement should be organized by ourselves
new suggestion: presentation in schools or universities, Akademie der Wissenschaften will be contacted again
asking for support in schools

6. workshop on 31-07.

München poster should be used: Chris, Tom S., Laura
Questionnaire can be spread along the attendees, collecting selection of questions

Next meeting: Friday 20-07 1:00 am

Summary 2012-07-20

Attendees: Tom S., Rico, Mario, Basia, Chris, Sascha, Xenia, Maria, Stefan, Laura, Kristian, Tarek, Kerstin, Tobi
Protocol: Basia
Moderation: Kathi
1. virus group progress report

PCR annealing product with a size of 3000bp
after digestion only 2000bp remained, additional restriction site?
PCR product will have to be sequenced

2. EGFR Domain 3

amplification: Ensemble-DB, Addgene.com, Origene.com, ?Qube.de -> as cDNA)
testing for intron/exon structure
100-500 € with addgene

3. modeling

Tobi presents modeling results

4. Cooperation with Freiburg iGEM team (Tal domain)

we need a recognition sequence for Tal domain in our antibody construct

5. Questionnaire

new questions should be formulated (German version)

6. iGEM - Tag der Synthetische Biologie 25-08

Which steps should be organized? Where: schools- Potsdam city
possibility of radio interview

7. ice cream :) 8. poster was printed today! 9. antibody construct is ready!

Next meeting: Friday 27-07 9:00 am

Summary 2012-08-03

Attendees: Tom S., Rico, Chris, Sascha, Maria, Kristian, Tobi, Kerstin
Protocol: Kerstin
Moderation: Kristian
Discussion about team T-shirts Color? Logo will be presented in which size? Does everyone agree with the logo design?
science meets media Idea: creating website for human practice part of every iGEM team in the fashion of part registry
idea: radio interview for Tag der Synthetischen Biologie idea: certificate form ZEBIT/BFR?
- a new entry was created for the AID, should the entry be extended by a text about iGEM Pots-dam?
foto shooting and bbqing on Monday 06-08
who will participate in the Amsterdam jamboree? booking flights, hotel and so on.
antibody construct big construct: scFv will have to be displaced by anti-GFP nanobody small construct: almost ready, should be ligated into pcDNA5FRT vector for stable transfection
idea: IFP (infrared fluorescing Protein) with AID for measuring the mutation rate
Problems and limitations of FACS facility have to be assessed Alternative: Deutsches Rheuma Forschungszentrum with FACS core facility

Next meeting: Monday after foto shoot

Summary 2012-08-06

Attendees: Tom S., Rico, Chris, Sascha, Maria, Kristian, Tobi
Protocol: Tom
Moderation: Rico

group planning:

(antibody): 1st week: small construct (transient/stable transfection, integrated 6th week), 3rd week big construct (transient/stable integrated 8th week)
(AID): 1st week: finishing everything, 2nd week: localization of modified AID, 3rd week: muta-tion rate with color change, (4th week) collaboration with Freiburg
(Virus): 3rd week: EGFR+ sortase construct and virus+ sortase construct, 5th week: virus is ready

virus: 3 variations of selection system: thymidin deaminase, antibiotic resistance, color reaction (dye should be compatible with GFP and mCherry)
phage display: Arabinose promoter fused to non-modified AID with Amp resistance, Tim should be consulted (analogy to NEB protocol)

Next meeting: Friday at 10:00 am

Summary 2012-08-10

Attendees: Tom S., Rico, Chris, Stefan, Laura, Tobias
Protocol: Chris
Moderation: Tom S.

progress report:

(Antibody): search for Cre recombinase (Maria), important: cross interaction of cre recombinase and Flp-recombinase?
Big antibody construct will be too late for stable transfection till jamboree, can be transfected transiently, FACS for expression testing
Small construct is read for transfection, sequencing results will arrive soon, will be used for testing the AIDs mutation potential
(AID): weaker promoter for collaboration project with Freiburg, sequence specificity can possibly get lost with a high expression rate, first tests if expression with weaker promoter is useful
Phage display planning:
Plan: Transformation of ‘‘E. coli‘‘ with AID and phage vector, (new competent cells are needed) Induction of AID with arabinose 1 h before transformation of cells with vector Pak 100 (witht scFV 425- anti EGFR), adding helper phages afterwards
(Virus): selection for virus infection with which fluorescence protein? --> CFP? Leads to no inter-ferences with GFP,YFP and mCherry disadvantage: weak fluorescence

Modeling: Tobias calculated and analyzed several parameter

Model shows that there should be a definite difference in affinity of template antibody to mutated antibody so that selection system can work properly (too high affinity of our antibody?)

task allocations
- Kathi: hotel and flight details for Amsterdam

Hotel: 2 nights, cheap, close to Uni
Flight: favorite way of travelling to Amsterdam

- Tom S., Rico, Chris: new standard = ligation free cloning as "best RFC", Idea: cloning with

thiooligos

- Kerstin: watching judging criteria
- new Software protocols in XML format have to be written for Labapp (new protocols from lab work have to be used)
wiki homepage: help by Norman (ideas and concepts should be collected)
T-shirt design: 1st: uni chrome golden, golden with blue, any other suggestions?
Tag der Synthetischen Biologie 25-08: ideas:
- 1st: experiment with DNA extraction from bananas in pedestrian area (problem: permission by Potsdam city?)
- 2nd: radio interview
- 3rd: schools (problem: 25-08 is on Saturday)
seminar presentations in English: each group should present a regular progress report to inform about lab work

Next meeting Tuesday 14-08 4 am

Summary 2012-08-14

Attendees:: Tom S., Rico, Chris, Stefan, Tobias, Sascha, Xenia, Maria, Bascha, Kerstin
Protocol: Tobias
Moderation: Xenia

working time: time is getting short and there is still a lot to do
group planning: stable transfection is getting started, RFP and AID will be co-transfected, fluorescence measuring over 48 h, control without AID, separating cells and sequencing

Someone has to contact the DRFZ FACS core facility
(virus): virus with YFP on surface are produced

software: editor for protocol example is available; Basia tries to adjust protocols for software
T-shirt: Tom designed several logos, Basia is responsible for imprinting of shirts (logo will be golden) everyone has to vote for the logo until next Tuesday
human practice: (interview with a politician) two politicians already answered; formulating questions for the interview, everyone who would like to participate has to register with Name and date of birth

(radio:) Sascha contacted radio channels: no reply so far

Tag der Synthetischen Biologie: DNA extraction in Potsdam, idea was accepted and should be planned

Summary 2012-08-17

Attendees:: Tom S., Stefan, Tobias, Sascha, Kerstin, Basia, Kathi
Protocol: Maria
Moderation: Kristian

T-shirts:

- Design and color was set with red and golden letters (it still has to be decided if front and back site in uniform look or with different color for sponsoring)
- for every member 2 T-shirts were ordered, sizes were estimated (Basia immediately ordered shirts)

Accessories:

- previous idea: flip-book, Buttons...
Further ideas?

regional radio station were contacted by Sascha, no answer up to now

Tag der Synthetischen Biologie

- stand at Brandenburger Straße was accepted by city of Potsdam, an official document is still missing (Maria will contact town hall again on Monday)
- information can be seen and collected under UP12_25_08_12

12th – 14th September: “8. Workshop of Molecular Interactions”

(http://www.molecularinteractions.de/)
Who would like to participate???? maybe 2-3 people for presentation
- a new abstract and a new poster is needed!

Biobricks

Virus Team:
- improved/modified virus construct of Freiburg with sortase-motive
- antigen with sortase-motive
- sortase
- ...
AID Team:
- WT AID
- Super-AID
- Biobricks from Phagemid Display?
- AID-Tal Domain from collaboration
- ...
Antibody:
- entire antibody construct
- nanobody with Fc region
- TEV-LoxP- Transmembrane-domain-mCherry
- Cre Recombinase optimized for mammalian cells
- ...

New iGEM standard by Rico, Tom, Chris

Progress report: from next Thursday on, every group will have to present progress of lab work in English

- AID group (Tom S.): presentation of phagemid display (planning the vector and work steps), Biobricks, work for collaboration with Freiburg (AID+TAL Domäne)

Next meeting: 21th August 4pm

Summary 2012-08-21

Attendees:: Tom S., Chris, Stefan, Tobias, Sascha, Xenia, Maria, Basia
Protocol: Xenia

Tobias presents

actual lab progress virus
modelling

Basia presents

actual lab progress AID
TAL-domain
standard cloning:

-PLICing or SLICing? – advantage of SLICe: fast, several inserts can be cloned at the same time ; cheap; cells already existent in registry? (quick and dirty)

T-shirts: logo will be altered; t-shirts will have to be ordered

Day of Synthetic Biology (25.08.12)

will take place at the Brandenburgerstr. in Potsdam next to Starbucks
Topic: DNA isolation from bananas

abstract will have to be extended

- dead line: 07-09-2012

Next meeting: 24th August 12 pm

Summary 2012-08-24

Attendees:: Tom S., Rico, Chris, Stefan, Tobias, Sascha, Maria, Kerstin, Kristian
Protocol: Kerstin

Agenda:

work in progress
poster und planning for Saturday 25-08 (Tag der Synthetischen Biologie)
homepage
07th September
interview questions
transfection
further planning

Discussion about official wiki on Saturday 25-08 at 5.30 pm
Until the 07th September all members should have signed in with an official wiki iGEM account
Track declaration, biosafety , transaction of registration fee for Jamboree
Progress report of antibody group by Sascha
Additional information about cell culture from Stefan and Kerstin
Maria presents poster for Day of Synthetic Biology (for Saturday, 25-08) Planning of Saturday, table is needed, lab coats, camera and so on…
All in all 7 interviews with politicians, dates can be inspected on wiki, interview questions have to be corrected again
Topics: flight and hotel for Amsterdam

Next meeting: 2012-08-28 12 pm

Summary 2012-08-28

Attendees: Rico, Tom, Tobias, Basia, Kerstin, Maria; Stefan, Xenia, Sascha Protocol: Sascha Agenda: 1. 07/09/12 2. payment jamboree/attendees 3. phone app 4. distribution of talks/progress report 5. workshop of molecular interactions 6. interview with a politician

1. 07/09/12

safety questions, abstract and track selection is needed

2. payment jamboree

StudiumPlus is sponsoring 1000€ for the attendance fee
attendance fee 220€ pP

3. phone app

Basia keeps trying to write protocols

4. progress report Antibody-group

scFv construct was transfected into CHO cells, showed fluorescence
not clear, if antibody is localized into membrane
co-transfection of scFv construct with AID into CHO cells

AID

checking sequencing results of CMV-AID_EGFP-hgH
AID-TAL construct sent to team Freiburg
phage display: cloning vector for BioBrick from Sven!

Virus

PO1: YFP insert VP2/VP3
PO5: VP2
PO6: VP1
helper phage: results looking good
pSB1C: GOI and CFP+CMV

Modeling:

250h selection pressure on cells
aim of model is to illustrate principle of project
further parameters required to get a more precise analysis
high selection pressure is needed for a good virus infection rate

5. molecular interactions

new poster has to be designed
poster presentation on the 12th of September in Berlin (Kerstin, Maria)

6. interview with a politician

8-9 interview partner showed interest

Summary 2012-08-31

Attendees: Basia, Stefan, Sascha, Kerstin, Chris, Xenia, Kathi, Rico, Tom
Presenter: Tom
Protocol: Maria
1.progress report:
Virus:
- pcBIC Plasmid is sequenced
- HEK cells are transfected with 4 plasmids for virus production (plasmid with YFP and CFP)
- Another GOI with “survival signal” should be designed!!
AID:
- All Biobricks (5 so far) are finished, got a number and are fully sequenced; just TAL domain is missing
- German names have to be translated
- Another Biobrick: Wt-AID-GFP = new standard can be used?
Phagemid Display:
- Difficulties with restriction enzyme digestion (was repeated in thermo cycler) and with purifica-tion/separation of single cut from double cut on gel
Antibody:
- Adjusting the transfection protocol is finished, transfection conditions are settled
- Clon 4 was transfected transient last week, pictures have to be taken with higher magnifica-tion
- But: fluorescence intensity was not high enough, repetition of experiment?
- Detection of antibody on surface with anti-FLAG-Tag antibody, secondary labeled antibody can be seen in microscope
- Start of long-time experiments with cmv-venus (48h over weekend)
- Cells are prepared for stable transfection
- GeneArt construct arrived!!!!
- Primers ordered for production of Biobricks
2. Episomal vector for longer transient transfection of antibody construct???
3. Measurement and data (needed!!!) for our project
- Mutations by AID: Sequencing of the antibody-fragment, search for sequence altered by AID
Idea: AID able to mutate specificity of antibody fragment for YFP to CFP ???
- Switch form on surface presented to secreted antibody fragment
- Selection system with virus
4. Virus
- Virus selection system needs to be able to distinguish between antibody/no-antibody on sur-face
- Possibilities of selection: death signal, survival signal (antibiotic resistance), fluorescence signal (CFP)

Signal	Surface	GOI
fluorescence signal	YFP	CFP
fluorescence signal	CFP	YFP
death signal	…	TK
death signal	…	CD
survival signal	…	antibiotic resistance signal which kills resting cells or use of selective media

- Find an antibiotic which is eligible for selection and orthogonal to Hygromycin
- Neomycin, Gentamycin????
5. Selection of CHO cells with antibody construct
- FACS of Potsdam antibody group still out of order
- Magnetic beats for selection
- FACS core facility at DRFZ
Important: phenol red free media has to be ordered for preparation
6. Assembly standard
- Biobrick standard vector, introduces compatibility
- Disadvantage: more expensive primers, ligase is still needed
- Advantage: much faster and vector doesn’t need to be amplified
7. Touch screen TV
- Collecting information
Idea: 4 smaller once instead of 1 big ones
8. Cre recombinase
– ordered from Addgene
9. Wiki/homepage
- Information/ ideas under UP12_ wiki-web-design

Important: suggestions for project name!!!!!

Next meeting: Tuesday, 04.09.12, 4 pm

Summary 2012-09-04

Attendees: Basia,Tom, Xenia, Tobi; Chris, Kathi, Maria, Stefan
Moderation: Tom
Protokoll: Kathi
Agenda :

progress report
abstract
homepage
FACS
touch screen for poster presentation
pictures

1. homepage

Rico will provide HTML program
labjournal for AID group can be uploaded on official wiki
plug in for open office wiki?
pull-down menu for wiki: max. 6 pull-downs
content

- main: project description, data, summary 1, summary 2, summary 3, modeling - team - ethics/ human practice - safety - biobricks - data page - sponsoring -attribution -labjournal/protocols/ meetings - software 2. abstract

will phage display be added to abstract?
Maria will upload abstract, safety questions and tracks; text has to be controlled yet again

3. magnetic beads

beads have to be coupled with CFP and YFP -> antibody junior group?

4. FACS

pdf document for application for core facility at DRFZ (Maria sends mail)
appointment can be made short dated
people taking care of cell culture have to get involved

5. progress report

Xenia presents current status of virus project (plasmids, future work…)
gelfiltration
virus has to be checked for fluorescence under the microscope
positive selection with antibiotic resistance (which resistance gene is suitable?)

6. TV screen

Basia has connections: 46 inches approx.. 1000€ + 250€ with screen, full HD, multi touch and laptop; cons: insurance just on the way to Amsterdam and back
one touch screen approx.. 500€

Summary 07.09.2012

Attendees: Stefan, Kerstin, Maria, Basia, Kristian, Xenia, Tobi, Kathi, Sascha, Tom, Rico
Moderation: Tobi
Protokoll: Kathi
Agenda :

progress report
homepage
FACS
ELISA
title/project name
interview

1. title/project name:

antibody evolution kit (system?)
antibody maturation kit
antibody generation kit
new solution for antibody evolution
best solution for antibody evolution

2. progress report

AID: the phage display works
VIRUS three out of four virus types are ready; last one is following next week; Primers for antibiotic resistance were ordered.... first virus infection was probably successful. A yellow shadow can be distinguished around the cells and after quenching the yellow glow disappears
AK: stable transfection and Biobricks for single chain and nanobody construct in progress
MODELING: Tobi presents new results for stochastic model – movie about correlation of initial amount of c with normal and und virus infected cells

3. homepage

uploading of information onto official wiki via copy/paste - pictures will have to be added immediately with text to avoid server break down shortly before wiki freeze
structure – generating as word document – will be adjusted later on

4. FACS

5. Magnetic beads: GFP is needed coupled to beads – Sascha is looking for other possibili-ties*Fluorescence BD homepage, checking out compatibility of fluorescence proteins with FACS facility

6. ELISA

Sascha keeps searching for a labeled antibody against Flag-tag of scFv construct

7. interview with politicians (Tom, Rico, Sascha)

summary 2012-09-11

Attendees: Xenia, Tobias, Chris, Rico, Stefan, Basia, Kathi, Tom S., Kristian, Kerstin, Maria, Sascha
Protocol: Basia Tops:
1. Progress report
a) Phage display:
- the first round will be ready tomorrow
- 1 plate (double mutated with AID) had only 1 colony - maybe too strong mutation? -> let's try to reduce the arabinose concentration
- 3 others had many positive clones
b) AID group
- news from sequencing: wtAID mutates stronger than the mod. AID
- other probes from different times will be sent for sequencing tomorrow
- split the cells earlier?
c) Virus
- Things from Sven are there - available (missing plasmids and primers)
- Transfection tomorrow
- Do we do magnetic beads? Do we stay with Virus and FACS only as a selection system?
d) Antibody
- we need the cells with stably transfected antibody - Kerstin will do that until Friday but the cells won't be happy!
- Basia and Chris will express YFP and CFP for magnetic beads selection system
e) Modeling
- Comparison between deterministic and stochastic model: stochastic model is better
- we should apply the law of mass action
2. Biobricks - who writes what?
- Write an email to iGEM headquarters: is genebank format available? what features should it have?
- everyone should write the texts but only 2 or three people should put it on the parts registry - see the BioBrick page and self-assign
3. Internetseite
4. Poster
5. FACS
- Maria and Stefan will call the DRFZ.

Summary 2012-09-04

Attendees: Basia, Tom, Xenia, Tobi; Chris, Kathi, Maria, Stefan
Moderation: Tom
Protokoll: Kathi
Agenda :

progress report
abstract
homepage
FACS
touch screen for poster presentation
pictures

1. homepage

Rico will provide HTML program
labjournal for AID group can be uploaded on official wiki
plug in for open office wiki?
pull-down menu for wiki: max. 6 pull-downs
content

- main: project description, data, summary 1, summary 2, summary 3, modeling - team - ethics/ human practice - safety - Biobricks - data page - sponsoring - attribution - labjournal/protocols/ meetings - software 2. abstract

will phage display be added to abstract?
Maria will upload abstract, safety questions and tracks; text has to be controlled yet again

3. magnetic beads

beads have to be coupled with CFP and YFP -> antibody junior group?

4. FACS

pdf document for application for core facility at DRFZ (Maria sends mail)
appointment can be made short dated
people taking care of cell culture have to get involved

5. progress report

Xenia presents current status of virus project (plasmids, future work…)
gelfiltration
virus has to be checked for fluorescence under the microscope
positive selection with antibiotic resistance (which resistance gene is suitable?)

5. TV screen

Basia has connections: 46 inches, full HD, multi touch and laptop; cons: insurance just on the way to Amsterdam and back
one touch screen approx.. 500€

Summary 2012-09-07

Attendees: Stefan, Kerstin, Maria, Basia, Kristian, Xenia, Tobi, Kathi, Sascha, Tom, Rico
Moderation: Tobi
Protokoll: Kathi
Agenda :

progress report
homepage
FACS
ELISA
title/project name
interview

1. title/project name:

antibody evolution kit (system?)
antibody maturation kit
antibody generation kit
new solution for antibody evolution
best solution for antibody evolution

2. progress report

AID: the phage display works
VIRUS three out of four virus types are ready; last one is following next week; Primers for antibiotic resistance were ordered.... first virus infection was probably successful. A yellow shadow can be distinguished around the cells and after quenching the yellow glow disappears
AK: stable transfection and Biobricks for single chain and nanobody construct in progress
MODELING: Tobi presents new results for stochastic model – movie about correlation of initial amount of c with normal and und virus infected cells

3. homepage

uploading of information onto official wiki via copy/paste - pictures will have to be added immediately with text to avoid server break down shortly before wiki freeze
structure – generating as word document – will be adjusted later on

4. FACS 5. Magnetic beads: GFP is needed coupled to beads – Sascha is looking for other possibilities

Fluoreszenz BD homepage, checking out compatibility of fluorescence proteins with FACS facility

6. ELISA

Sascha keeps searching for a labeled antibody against Flag-tag of scFv construct

7. interview with politicians (Tom, Rico, Sascha)

Summary 2012-09-18

Attendees: Xenia, Tobias, Chris, Rico, Basia, Kathi, Tom S., Kristian, Maria, Sascha

Protocol: Tom

Tops:

1. Progress report

a) BioBricks:

- check the writen text of our parts

- make Links to EMBL, UniProt ...

- align partregistry generated sequence with real sequenced sequence

- make standard table on the right side

- add statistics, data to parts and a complete vectorcard with annotations

- prepare of samples for shipment till the end of the week

b) Webside

- html headings:
h2: heading (Mutation Module)

h3: Intro -> Results -> Discussion -> Material and Methods -> References (with complete sources)

- Citation in the text with Author and year and the complete source in References

c) Animation

- make animation with PowerPoint and combine real photos and data with anmations

Summary 2012-10-10

Attendees: Xenia, Tobias, Chris, Basia, Kathi, Tom S., Maria, Sascha, Kerstin, Stefan

Protocol: Basia

Tops:

1. Sponsoring

a) Make iGEM a public event:

- Info on the Uni homepage

- SPEAK UP

- Uni newspaper

- Potsdam newspaper

b) Write again to the sponsors that we already once asked

- Tom will do it

c) Writing a letter to sponsors

- Tobi and Chris will handle that

2. Hotel and flight tickets

- Stefan will take care of that

3. Search for a new labspace for us

- Sascha will try to find something, ask other teachers and so on

4. Cleaning of the old lab - everyone!

5. What needs to be done: experiments

- Sascha will continue PCR for the transmembrane domain - if this works we will proceed as planned before

- Cell culture needs to keep on going - Kerstin and Stefan

6. AVZ - find the screen for poster session in MIT

- Basia will try to figure something out

7. Changes to Wiki

Summary 2012-10-19

Protocol: Kathi
Agenda:
1. Progress report:

cloning new transmembrane domain
transfection
rep. testing for cre recombinase
virus

2. wiki 3. organizational stuff 4. presentation and poster
1. labjournal will be written on official wiki

Basia will take care about magnetic beads ?
HT1080 virus with sortase motif
cloning of new membrane domain
EGFR periplasma prep
repetition of cre recombinase experiment

2. wiki

going through whole text again
adding explanation of RFC
completing interviews
explanations for new transmembrane domain

3. organization

cotransfection cre recombinase and antibody construct + negative control
CHO cells for new transmembrane domain (diff. cell types)

4. poster and presentation

any news about the touch screen?
ideas for improving poster and presentation = meeting on Monday 14:30 !!!

Team:Potsdam Bioware/Lab/Group Meetings

From 2012.igem.org

Contents

Group Meetings

Summary 2012-03-12

Summary 2012-04-04

Summary 2012-04-20

Summary 2012-04-12

Summary 2012-05-04

Summary 2012-05-11

Summary 2012-05-12

Summary 2012-05-22

Summary 2012-06-01

Summary, 2012-06-08

Summary 2012-06-12

Summary 2012-06-22

Summary 2012-06-29

Summary 2012-07-13

Summary 2012-07-20

Summary 2012-08-03

Summary 2012-08-06

Summary 2012-08-10

Summary 2012-08-14

Summary 2012-08-17

Summary 2012-08-21

Summary 2012-08-24

Summary 2012-08-28

Summary 2012-08-31

Summary 2012-09-04

Summary 07.09.2012

summary 2012-09-11

Summary 2012-09-04

Summary 2012-09-07

Summary 2012-09-18

Summary 2012-10-10

Summary 2012-10-19