Team/CINVESTAV-IPN-UNAM MX/Oxigen Response.htm
From 2012.igem.org
(15 intermediate revisions not shown) | |||
Line 1: | Line 1: | ||
- | <html xmlns="http://www.w3.org/1999/xhtml"><head> | + | <html xmlns="http://www.w3.org/1999/xhtml"> |
- | <title> | + | <head> |
+ | <meta http-equiv="content-type" content="text/html; charset=utf-8" /> | ||
+ | <title>Rho</title> | ||
- | < | + | <style type="text/css"> |
+ | #top-section { | ||
+ | position: relative; | ||
+ | height: 20px; | ||
+ | width: 975px; | ||
+ | margin: 0 auto 0 auto; | ||
+ | border-left: hidden; | ||
+ | border-right: hidden; | ||
+ | border-bottom: hidden; | ||
+ | } | ||
- | + | * { | |
- | + | margin: 0; | |
+ | padding: 0; | ||
+ | } | ||
+ | |||
+ | body { | ||
+ | background: #FFFFFF url(https://static.igem.org/mediawiki/2012/f/f3/Fondo_bod.jpg) repeat-x; | ||
+ | text-align: justify; | ||
+ | font-family: Georgia, "Times New Roman", Times, serif; | ||
+ | font-size: 12px; | ||
+ | color: #000000; | ||
+ | } | ||
+ | |||
+ | h1, h2, h3 { | ||
+ | color: #333333; | ||
+ | } | ||
+ | |||
+ | h1, h2 { | ||
+ | margin-bottom: 20px; | ||
+ | font-weight: normal; | ||
+ | } | ||
+ | |||
+ | h1 { | ||
+ | font-size: 197%; | ||
+ | } | ||
+ | |||
+ | h2 { | ||
+ | font-size: 152%; | ||
+ | } | ||
+ | |||
+ | h3 { | ||
+ | font-size: 100%; | ||
+ | } | ||
+ | |||
+ | p, ul, ol { | ||
+ | margin-bottom: 20px; | ||
+ | line-height: 1.8em; | ||
+ | } | ||
+ | |||
+ | ul, ol { | ||
+ | margin-left: 3em; | ||
+ | } | ||
+ | |||
+ | blockquote { | ||
+ | padding-left: 3em; | ||
+ | background: url(https://static.igem.org/mediawiki/2012/1/11/Img08.gif) no-repeat; | ||
+ | font-style: italic; | ||
+ | } | ||
+ | |||
+ | a:link { | ||
+ | color: #1953A7; | ||
+ | } | ||
+ | |||
+ | a:active { | ||
+ | color: #ED5C0C; | ||
+ | } | ||
+ | |||
+ | a:visited { | ||
+ | color: #666666; | ||
+ | } | ||
+ | |||
+ | a:hover { | ||
+ | text-decoration: none; | ||
+ | color: #067600; | ||
+ | } | ||
+ | |||
+ | img { | ||
+ | border: none; | ||
+ | } | ||
+ | |||
+ | img.left { | ||
+ | float: left; | ||
+ | margin: 0 20px 10px 0; | ||
+ | } | ||
+ | |||
+ | /* Menu */ | ||
+ | |||
+ | #menu { | ||
+ | width: 770px; | ||
+ | height: 65px; | ||
+ | margin: 0 auto; | ||
+ | border-right: 1px solid #EDEBD5; | ||
+ | } | ||
+ | |||
+ | #menu ul { | ||
+ | margin: 0; | ||
+ | padding: 0; | ||
+ | list-style: none; | ||
+ | } | ||
+ | |||
+ | #menu li { | ||
+ | display: inline; | ||
+ | font-size: 12px; | ||
+ | color:#4E4E4E; | ||
+ | } | ||
+ | |||
+ | #menu a { | ||
+ | display: block; | ||
+ | float: left; | ||
+ | width: 95px; | ||
+ | height: 45px; | ||
+ | padding: 10px 0 0 0; | ||
+ | border-left: 1px solid #EDEBD5; | ||
+ | text-transform: lowercase; | ||
+ | text-decoration: none; | ||
+ | text-align: center; | ||
+ | font-size: 135%; | ||
+ | color: #BABABA; | ||
+ | } | ||
+ | |||
+ | #menu a:hover { | ||
+ | background: #F7F7F4; | ||
+ | } | ||
+ | |||
+ | #menu .active a { | ||
+ | background: #5dbb10; | ||
+ | color: #FFFFFF; | ||
+ | } | ||
+ | |||
+ | /* Header */ | ||
+ | |||
+ | #header { | ||
+ | width: 770px; | ||
+ | height: 170px; | ||
+ | margin: 0 auto; | ||
+ | } | ||
+ | |||
+ | #header h1 { | ||
+ | float: left; | ||
+ | width: 220px; | ||
+ | height: 100px; | ||
+ | margin: 0; | ||
+ | padding: 70px 0 0 0; | ||
+ | background: url(https://static.igem.org/mediawiki/2012/0/0a/Img02.jpg) no-repeat; | ||
+ | text-align: center; | ||
+ | font-size: 36px; | ||
+ | } | ||
+ | |||
+ | #header h2 { | ||
+ | float: right; | ||
+ | width: 530px; | ||
+ | height: 86px; | ||
+ | margin: 0; | ||
+ | background: url(https://static.igem.org/mediawiki/2012/4/4a/Img03.jpg) no-repeat; | ||
+ | padding: 84px 20px 0 0; | ||
+ | text-align: right; | ||
+ | } | ||
+ | |||
+ | #header a { | ||
+ | text-transform: lowercase; | ||
+ | text-decoration: none; | ||
+ | font-style: italic; | ||
+ | font-weight: normal; | ||
+ | color: #FFFFFF; | ||
+ | } | ||
+ | |||
+ | /* Page */ | ||
+ | |||
+ | #page { | ||
+ | width: 770px; | ||
+ | margin: 0 auto; | ||
+ | padding: 20px 0; | ||
+ | } | ||
+ | #context{ | ||
+ | float: left; | ||
+ | width: 570px; | ||
+ | padding-top:5px; | ||
+ | } | ||
+ | /* menudecontenido */ | ||
+ | |||
+ | #sidebar { | ||
+ | float: right; | ||
+ | width: 160px; | ||
+ | padding: 15px; | ||
+ | background: #EDEBD5; | ||
+ | } | ||
+ | |||
+ | #sidebar h2 { | ||
+ | margin: 0; | ||
+ | padding: 5px 15px; | ||
+ | color: #FFFFFF; | ||
+ | } | ||
+ | |||
+ | #sidebar h3 { | ||
+ | font-size: 60%; | ||
+ | color: #FFFFFF; | ||
+ | } | ||
+ | |||
+ | #sidebar ul { | ||
+ | margin: 0; | ||
+ | padding: 15px; | ||
+ | list-style: none; | ||
+ | } | ||
+ | |||
+ | #sidebar li { | ||
+ | font-size: 12px; | ||
+ | text-align:left; | ||
+ | } | ||
+ | |||
+ | #sidebar a { | ||
+ | color: #FFFFFF; | ||
+ | } | ||
+ | |||
+ | .orangebox { | ||
+ | background: url(https://static.igem.org/mediawiki/2012/b/b0/Img05.gif) repeat-y; | ||
+ | } | ||
+ | |||
+ | .orangebox h2 { | ||
+ | background: url(https://static.igem.org/mediawiki/2012/c/c2/Img06.gif) repeat-y; | ||
+ | } | ||
+ | |||
+ | /* Footer */ | ||
+ | |||
+ | #piedepagina { | ||
+ | clear: both; | ||
+ | height: 150px; | ||
+ | padding: 25px 0; | ||
+ | background: #EDEBD5 url(https://static.igem.org/mediawiki/2012/a/a5/Img04.gif) repeat-x; | ||
+ | } | ||
+ | |||
+ | #sponsors{ | ||
+ | |||
+ | float: left; | ||
+ | width: 85px; | ||
+ | padding-top:5px; | ||
+ | background: #EDEBD5; | ||
+ | |||
+ | } | ||
+ | #text2 | ||
+ | { | ||
+ | color: #333333; | ||
+ | font-size: 152%; | ||
+ | margin-bottom: 20px; | ||
+ | font-weight: normal; | ||
+ | } | ||
+ | #refe | ||
+ | { | ||
+ | color: #000000; | ||
+ | font-size:9; | ||
+ | margin-bottom: 20px; | ||
+ | font-weight: normal; | ||
+ | } | ||
+ | |||
+ | .firstHeading { | ||
+ | margin-bottom: .1em; | ||
+ | visibility:hidden; | ||
+ | } | ||
+ | |||
+ | img[src*="/wiki/skins/common/images/wiki.png"]{ | ||
+ | width:0; | ||
+ | height:0px; | ||
+ | padding-right:975px; | ||
+ | background:transparent url(https://2011.igem.org/wiki/skins/common/images/wiki.png) top left no-repeat; | ||
+ | } | ||
+ | |||
+ | </style> | ||
+ | |||
+ | <meta name="keywords" content="" /> | ||
+ | <meta name="description" content="" /> | ||
- | |||
</head> | </head> | ||
- | <body | + | <body> |
- | < | + | <div id="menu"> |
- | < | + | <ul> |
- | + | <li><a href="home.htm">Home</a></li> | |
- | + | <li class="active"><a href="rhodofactory.htm">Rhodofactory</a></li> | |
- | + | <li><a href="promoterselection.htm">Promoter selection </a></li> | |
- | + | <li><a href="results.htm">results </a></li> | |
- | + | <li><a href="perspectives.htm">Perspectives</a></li> | |
- | < | + | <li><a href="Modelling.htm">Modeling</a></li> |
- | + | <li><a href="aboutus.htm">About us</a> </li> | |
- | + | <li><a href="outreach.htm">outreach</a></li> | |
- | + | </ul> | |
- | <a href=" | + | </div> |
- | + | <!-- end #menu --> | |
- | + | <div id="header"> | |
- | + | <h1><a href="#"></a></h1> | |
- | + | <h2><span></span></h2> | |
- | + | </div> | |
- | + | <!-- end #header --> | |
- | + | <div id="page"> | |
- | + | <div id="context"> | |
- | + | ||
- | + | <h1><em>Oxygen Control System: PrrA/PrrB two <br /><br />component regulation system! </em></h1> | |
- | + | <p>This regulatory system is able to sense oxygen concentration and send a response, under high oxygen tension, the system remains inactive, when oxygen concentration decreases PrrB (Histidine sensor kinase) turns active through an autophosphorylation with help of PrrC, which receive the signal from electron transport chain. Then PrrB transfer a phosphate group to PrrA that directly binds promoter and recruits RNA polymerase to start GFP transcription. | |
- | < | + | |
- | + | ||
- | + | (See the next video for a visual explanation).</p> | |
- | + | <div align="center"><iframe width="480" height="360" src="http://www.youtube.com/embed/pgp6DzpNyA0" frameborder="0" allowfullscreen></iframe></div><br> | |
- | + | <p id="text2">Our biobricks </p> | |
- | + | <p>The first biobrick consists in the complete oxygen dependent system, PrrA, PrrB and PrrC, each one with a Ribosome Binding Site, under a | |
- | + | Medium strength promoter (J23104), this first biobrick also it has the PrrA dependent promoter and GFP as a reporter gene</p> | |
- | + | <img src="https://static.igem.org/mediawiki/2012/4/45/Rodo04.jpg" alt="rodo04" width="560" height="116"><br> | |
- | + | <p><br> | |
- | + | The second biobrick is just the PrrA dependent promoter and GFP as a reporter gene.</p> | |
- | + | <p align="center"><img src="https://static.igem.org/mediawiki/2012/1/16/Rodo05.jpg" alt="rodo05" width="450" height="249"></p> | |
- | </ul | + | <p id="text2">We were inspired in:</p> |
- | + | <p>This system is inspired in PrrBCA two component system from <em>R. sphaeroides</em>, which is a master regulator involved in expression of | |
+ | approximately 850 genes, >20% of the genome (Kaplan & Eraso 2005) This system coordinately controls genes involved in the complex switch | ||
+ | between aerobic and anaerobic conditions and the optimum use of reducing power. It also regulates gene expression involved in | ||
+ | photosynthesis, carbon dioxide fixation, nitrogen fixation, hydrogen uptake, aerotaxis, denitrification, electron transport, aerobic and anaerobic | ||
+ | respiration, and heme biosynthesis, and others. Thus emphasizing its global role (Elsen et.al 2004, Kaplan & Eraso 2005, Zeilstra-Ryalls & | ||
+ | Kaplan 2004).</p> | ||
+ | <hr> | ||
+ | <p id="refe">References<br> | ||
+ | 1. | ||
+ | Kaplan S, Eraso J, Roh JH. (2005). <strong>Interacting regulatory networks in the facultative | ||
+ | photosynthetic bacterium, <em>Rhodobacter sphaeroides</em> 2.4.1.</strong> Biochem. Soc. Trans. 33:51–55<br> | ||
+ | |||
+ | 2. | ||
+ | Zeilstra-Ryalls JH, Kaplan S. (2004). <strong>Oxygen intervention in the regulation of gene xpression: the photosynthetic | ||
+ | bacterial paradigm.</strong> Cell. Mol. Life Sci. 61:417–36<br> | ||
+ | |||
+ | 3. | ||
+ | Eraso JM, Kaplan S (2009) <strong>Regulation of gene expression by PrrA in <em>Rhodobacter sphaeroides</em> 2.4.1: role of | ||
+ | polyamines and DNA topology.</strong> J Bacteriol 2009, 191(13):4341-4352. | ||
+ | </p> | ||
+ | |||
+ | </div> | ||
+ | <div id="sidebar"> | ||
+ | <div id="updates" class="orangebox"> | ||
+ | <h2>Rhodofactory</h2> | ||
+ | <ul> | ||
+ | <li><a href="Overview.htm" target="_parent">Overview</a></li> | ||
+ | <li><a href="Light_Response.htm">Light and Oxygen</a></li> | ||
+ | <li><a href="Oxigen_Response.htm">Oxygen Response</a></li> | ||
+ | <li><a href="Chassis.htm">Chassis</a></li> | ||
+ | </ul> | ||
- | + | </div> | |
- | + | </div> | |
- | + | <div style="clear: both;"> </div> | |
- | + | </div> | |
- | + | <!-- end #page --> | |
- | + | <div id="piedepagina"> | |
- | + | <p align="center"> <strong>Rhodofactory 2012</strong> </p> | |
- | + | <div id="sponsors"> | |
- | + | <div align="center"><img src="https://static.igem.org/mediawiki/2012/8/8a/Icytdf.png" alt="icytdf" width="90" height="82" /></div> | |
- | < | + | |
- | + | ||
- | + | ||
- | + | ||
- | < | + | |
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
</div> | </div> | ||
- | <div id=" | + | <div id="sponsors"> |
- | + | <div align="center"><img src="https://static.igem.org/mediawiki/2012/6/67/Osli.png" alt="osli" width="88" height="46" /></div> | |
- | + | </div> | |
- | + | ||
- | <div id=" | + | <div id="sponsors"> |
- | + | <div align="center"><img src="https://static.igem.org/mediawiki/2012/f/fb/Bio.png" alt="bio" width="80" height="97" /></div> | |
- | + | </div> | |
- | + | <div id="sponsors"><img src="https://static.igem.org/mediawiki/2012/d/d6/Fermentas.png" alt="fermentAS" width="82" height="45" /></div> | |
- | + | <div id="sponsors"> | |
- | + | <div align="center"><img src="https://static.igem.org/mediawiki/2012/a/a3/Cinestav.png" alt="cinestav" width="74" height="91" /></div> | |
- | + | </div> | |
- | + | <div id="sponsors"><img src="https://static.igem.org/mediawiki/2012/9/9b/Genscript.png" alt="genscript" width="83" height="45" /></div> | |
- | + | <div id="sponsors"> | |
- | + | <div align="center"><img src="https://static.igem.org/mediawiki/2012/1/16/Unam.png" alt="unam" width="83" height="93" /></div> | |
- | + | </div> | |
- | < | + | <div id="sponsors"><img src="https://static.igem.org/mediawiki/2012/c/c9/Gto.png" alt="gto" width="84" height="46" /></div> |
- | + | <div id="sponsors"> | |
- | + | <div align="center"><img src="https://static.igem.org/mediawiki/2012/f/fa/Qimica.png" alt="quimica" width="80" height="72" /></div> | |
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
</div> | </div> | ||
- | <div | + | <div id="sponsors"><img src="https://static.igem.org/mediawiki/2012/7/73/Valaner.png" alt="valaner" width="84" height="48" /></div> |
+ | <div id="sponsors"> | ||
+ | <div align="center"><img src="https://static.igem.org/mediawiki/2012/7/79/Ipn.png" alt="ipn" width="70" height="96" /></div> | ||
+ | </div> | ||
+ | |||
</div> | </div> | ||
- | + | <!-- end #footer --> | |
- | + | ||
- | + | ||
- | + | ||
- | + | ||
</body> | </body> | ||
</html> | </html> |
Latest revision as of 00:22, 27 October 2012
Oxygen Control System: PrrA/PrrB two
component regulation system!
This regulatory system is able to sense oxygen concentration and send a response, under high oxygen tension, the system remains inactive, when oxygen concentration decreases PrrB (Histidine sensor kinase) turns active through an autophosphorylation with help of PrrC, which receive the signal from electron transport chain. Then PrrB transfer a phosphate group to PrrA that directly binds promoter and recruits RNA polymerase to start GFP transcription. (See the next video for a visual explanation).
Our biobricks
The first biobrick consists in the complete oxygen dependent system, PrrA, PrrB and PrrC, each one with a Ribosome Binding Site, under a Medium strength promoter (J23104), this first biobrick also it has the PrrA dependent promoter and GFP as a reporter gene
The second biobrick is just the PrrA dependent promoter and GFP as a reporter gene.
We were inspired in:
This system is inspired in PrrBCA two component system from R. sphaeroides, which is a master regulator involved in expression of approximately 850 genes, >20% of the genome (Kaplan & Eraso 2005) This system coordinately controls genes involved in the complex switch between aerobic and anaerobic conditions and the optimum use of reducing power. It also regulates gene expression involved in photosynthesis, carbon dioxide fixation, nitrogen fixation, hydrogen uptake, aerotaxis, denitrification, electron transport, aerobic and anaerobic respiration, and heme biosynthesis, and others. Thus emphasizing its global role (Elsen et.al 2004, Kaplan & Eraso 2005, Zeilstra-Ryalls & Kaplan 2004).
References
1.
Kaplan S, Eraso J, Roh JH. (2005). Interacting regulatory networks in the facultative
photosynthetic bacterium, Rhodobacter sphaeroides 2.4.1. Biochem. Soc. Trans. 33:51–55
2.
Zeilstra-Ryalls JH, Kaplan S. (2004). Oxygen intervention in the regulation of gene xpression: the photosynthetic
bacterial paradigm. Cell. Mol. Life Sci. 61:417–36
3.
Eraso JM, Kaplan S (2009) Regulation of gene expression by PrrA in Rhodobacter sphaeroides 2.4.1: role of
polyamines and DNA topology. J Bacteriol 2009, 191(13):4341-4352.
Rhodofactory 2012