Team:Shenzhen/Result/YAO.Channel

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<ul><p>&nbsp;&nbsp;&nbsp;&nbsp;In total, there are 6 types of signal peptide involved in our project: signal peptide (SP) of Zim17, SP of ferredoxi, SP of Tim21, SP of Tom40, SP of Tom70, SP of Tom22.</p></ul>
<ul><p>&nbsp;&nbsp;&nbsp;&nbsp;In total, there are 6 types of signal peptide involved in our project: signal peptide (SP) of Zim17, SP of ferredoxi, SP of Tim21, SP of Tom40, SP of Tom70, SP of Tom22.</p></ul>
<ul><li>
<ul><li>
-
1). SP of Zim17</li><p>
+
1). SP of Zim17</li><p>&nbsp;&nbsp;&nbsp;&nbsp;
-
Zim17 is a zinc finger protein located in mitochondrial matrix. The signal peptide of Zim17 is amino-terminal segments rich in positively charged residues that form two to three turns of a helix with amphipathic character, and it directs the proteins imported into mitochondrial matrix. The sequence can be found at http://www.uniprot.org/blast/?about=P42844[1-47]. We synthesized the sequence and linked it with RFY.</p><p>
+
Zim17 is a zinc finger protein located in mitochondrial matrix. The signal peptide of Zim17 is amino-terminal segments rich in positively charged residues that form two to three turns of a helix with amphipathic character, and it directs the proteins imported into mitochondrial matrix. The sequence can be found at http://www.uniprot.org/blast/?about=P42844[1-47]. We synthesized the sequence and linked it with RFP & YFP.</p><p>
The document we mainly refer to is:</p><p>
The document we mainly refer to is:</p><p>
Burri L, Vascotto K, Fredersdorf S, Tiedt R, Hall MN, Lithgow T. Zim17, a novel zinc finger protein essential for protein import into mitochondria. J. Biol. Chem. 2004;279:50243-50249. </p></ul>
Burri L, Vascotto K, Fredersdorf S, Tiedt R, Hall MN, Lithgow T. Zim17, a novel zinc finger protein essential for protein import into mitochondria. J. Biol. Chem. 2004;279:50243-50249. </p></ul>
<ul><li>
<ul><li>
-
2). SP of ferredoxi</li><p>
+
2). SP of ferredoxi</li><p>&nbsp;&nbsp;&nbsp;&nbsp;
-
The signal peptide of ferredoxi, as a chloroplast-target transit peptide, has an α helix at its N-terminus, followed by an unstructured C-terminal domain of ~19 amino acids. The sequence can be found at http://www.uniprot.org/blast/?about=P07839%5b1-32%5d. We synthesized the sequence and linked it with RFY.</p><p>
+
The signal peptide of ferredoxi, as a chloroplast-target transit peptide, has an α helix at its N-terminus, followed by an unstructured C-terminal domain of ~19 amino acids. The sequence can be found at http://www.uniprot.org/blast/?about=P07839%5b1-32%5d. We synthesized the sequence and linked it with RFP & YFP.</p><p>
The document we mainly refer to is:</p><p>
The document we mainly refer to is:</p><p>
Bruce, B. D. (2000). "Chloroplast transit peptides: structure, function and evolution." Trends in Cell Biology 10(10): 440-447. </p></ul>
Bruce, B. D. (2000). "Chloroplast transit peptides: structure, function and evolution." Trends in Cell Biology 10(10): 440-447. </p></ul>
<ul><li>
<ul><li>
-
03). SP of Tim21</li><p>
+
03). SP of Tim21</li><p>&nbsp;&nbsp;&nbsp;&nbsp;
-
Tim21 is one component of the translocase of the inner mitochondrial membrane (TIM complex), and the signal peptide of Tim21 contains 239 amino acids with a N-terminally single transmembrane segment showing the characteristics of a positively charged mitochondrial presequence with a predicted cleavage site after residue 42. The sequence can be found at  http://www.uniprot.org/blast/?about=P53220[1-70]. We synthesized the sequence and linked it with RFY.</p><p>
+
Tim21 is one component of the translocase of the inner mitochondrial membrane (TIM complex), and the signal peptide of Tim21 contains 239 amino acids with a N-terminally single transmembrane segment showing the characteristics of a positively charged mitochondrial presequence with a predicted cleavage site after residue 42. The sequence can be found at  http://www.uniprot.org/blast/?about=P53220[1-70]. We synthesized the sequence and linked it with RFP & YFP.</p><p>
The document we mainly refer to is:</p><p>
The document we mainly refer to is:</p><p>
Chacinska, A., M. Lind, et al. (2005). "Mitochondrial Presequence Translocase: Switching between TOM Tethering and Motor Recruitment Involves Tim21 and Tim17." Cell 120(6): 817-829.</p></ul>
Chacinska, A., M. Lind, et al. (2005). "Mitochondrial Presequence Translocase: Switching between TOM Tethering and Motor Recruitment Involves Tim21 and Tim17." Cell 120(6): 817-829.</p></ul>
<ul><li>
<ul><li>
-
04). SP of Tom40</li><p>
+
04). SP of Tom40</li><p>&nbsp;&nbsp;&nbsp;&nbsp;
-
Tom40 is the core component of the translocase of the outer mitochondrial membrane (TOM complex), presenting an β-barrel structure. The signal peptide of Tom40 is a conserved β-signal motif, located near the C-terminus, The sequence can be found in the document BMC Genomics, 12, 79. We synthesized the sequence and linked it with RFY.</p><p>
+
Tom40 is the core component of the translocase of the outer mitochondrial membrane (TOM complex), presenting an β-barrel structure. The signal peptide of Tom40 is a conserved β-signal motif, located near the C-terminus, The sequence can be found in the document BMC Genomics, 12, 79. We synthesized the sequence and linked it with RFP & YFP.</p><p>
The document we mainly refer to is:</p><p>
The document we mainly refer to is:</p><p>
Imai, K., Fujita, N., Gromiha, M.M. and Horton, P. (2011) Eukaryote-wide sequence analysis of mitochondrial beta-barrel outer membrane proteins. BMC Genomics, 12, 79.</p></ul>
Imai, K., Fujita, N., Gromiha, M.M. and Horton, P. (2011) Eukaryote-wide sequence analysis of mitochondrial beta-barrel outer membrane proteins. BMC Genomics, 12, 79.</p></ul>
<ul><li>
<ul><li>
-
05). SP of Tom70 </li><p>
+
05). SP of Tom70 </li><p>&nbsp;&nbsp;&nbsp;&nbsp;
-
Tom70 is also one component of TOM complex, but only contain a single transmembrane segment at their N terminus. The signal peptide of Tom70 is the transmembrane domain comprising a hydrophilic, positively charged segment. The sequence can be found in http://www.uniprot.org/blast/?about=P07213[11-30]. We synthesized the sequence and linked it with RFY.</p><p>
+
Tom70 is also one component of TOM complex, but only contain a single transmembrane segment at their N terminus. The signal peptide of Tom70 is the transmembrane domain comprising a hydrophilic, positively charged segment. The sequence can be found in http://www.uniprot.org/blast/?about=P07213[11-30]. We synthesized the sequence and linked it with RFP & YFP.</p><p>
The document we mainly refer to is:</p><p>
The document we mainly refer to is:</p><p>
Rapaport, D. (2003). "Finding the right organelle." EMBO Rep 4(10): 948-952. </p></ul>
Rapaport, D. (2003). "Finding the right organelle." EMBO Rep 4(10): 948-952. </p></ul>
<ul><li>
<ul><li>
-
06). SP of Tom22</li><p>
+
06). SP of Tom22</li><p>&nbsp;&nbsp;&nbsp;&nbsp;
-
Tom22 is similar with Tom70, but it’s a tail-anchored protein. The signal peptide of Tom22 is also similar with the one of Tom70: moderately hydrophobic, relatively short, with positive charges at the flanking regions. The sequence can be found in http://www.uniprot.org/blast/?about=P49334[98-119].  
+
Tom22 is similar with Tom70, but it’s a tail-anchored protein. The signal peptide of Tom22 is also similar with the one of Tom70: moderately hydrophobic, relatively short, with positive charges at the flanking regions. The sequence can be found in http://www.uniprot.org/blast/?about=P49334[98-119]. We synthesized the sequence and linked it with RFP & YFP.</p><p>
-
synthesized the sequence and linked it with RFY.</p><p>
+
The document we mainly refer to is:</p><p>
The document we mainly refer to is:</p><p>
Plant Physiology July 2000 vol. 123 no. 3 811-816</p></ul>
Plant Physiology July 2000 vol. 123 no. 3 811-816</p></ul>

Revision as of 07:00, 25 September 2012




Yao.019-001.jpg
Construction of a Signal Peptide System

        In total, there are 6 types of signal peptide involved in our project: signal peptide (SP) of Zim17, SP of ferredoxi, SP of Tim21, SP of Tom40, SP of Tom70, SP of Tom22.

  • 1). SP of Zim17

    •      Zim17 is a zinc finger protein located in mitochondrial matrix. The signal peptide of Zim17 is amino-terminal segments rich in positively charged residues that form two to three turns of a helix with amphipathic character, and it directs the proteins imported into mitochondrial matrix. The sequence can be found at http://www.uniprot.org/blast/?about=P42844[1-47]. We synthesized the sequence and linked it with RFP & YFP.

    The document we mainly refer to is:

    Burri L, Vascotto K, Fredersdorf S, Tiedt R, Hall MN, Lithgow T. Zim17, a novel zinc finger protein essential for protein import into mitochondria. J. Biol. Chem. 2004;279:50243-50249.

  • 2). SP of ferredoxi

    •      The signal peptide of ferredoxi, as a chloroplast-target transit peptide, has an α helix at its N-terminus, followed by an unstructured C-terminal domain of ~19 amino acids. The sequence can be found at http://www.uniprot.org/blast/?about=P07839%5b1-32%5d. We synthesized the sequence and linked it with RFP & YFP.

    The document we mainly refer to is:

    Bruce, B. D. (2000). "Chloroplast transit peptides: structure, function and evolution." Trends in Cell Biology 10(10): 440-447.

  • 03). SP of Tim21

    •      Tim21 is one component of the translocase of the inner mitochondrial membrane (TIM complex), and the signal peptide of Tim21 contains 239 amino acids with a N-terminally single transmembrane segment showing the characteristics of a positively charged mitochondrial presequence with a predicted cleavage site after residue 42. The sequence can be found at http://www.uniprot.org/blast/?about=P53220[1-70]. We synthesized the sequence and linked it with RFP & YFP.

    The document we mainly refer to is:

    Chacinska, A., M. Lind, et al. (2005). "Mitochondrial Presequence Translocase: Switching between TOM Tethering and Motor Recruitment Involves Tim21 and Tim17." Cell 120(6): 817-829.

  • 04). SP of Tom40

    •      Tom40 is the core component of the translocase of the outer mitochondrial membrane (TOM complex), presenting an β-barrel structure. The signal peptide of Tom40 is a conserved β-signal motif, located near the C-terminus, The sequence can be found in the document BMC Genomics, 12, 79. We synthesized the sequence and linked it with RFP & YFP.

    The document we mainly refer to is:

    Imai, K., Fujita, N., Gromiha, M.M. and Horton, P. (2011) Eukaryote-wide sequence analysis of mitochondrial beta-barrel outer membrane proteins. BMC Genomics, 12, 79.

  • 05). SP of Tom70

    •      Tom70 is also one component of TOM complex, but only contain a single transmembrane segment at their N terminus. The signal peptide of Tom70 is the transmembrane domain comprising a hydrophilic, positively charged segment. The sequence can be found in http://www.uniprot.org/blast/?about=P07213[11-30]. We synthesized the sequence and linked it with RFP & YFP.

    The document we mainly refer to is:

    Rapaport, D. (2003). "Finding the right organelle." EMBO Rep 4(10): 948-952.

  • 06). SP of Tom22

    •      Tom22 is similar with Tom70, but it’s a tail-anchored protein. The signal peptide of Tom22 is also similar with the one of Tom70: moderately hydrophobic, relatively short, with positive charges at the flanking regions. The sequence can be found in http://www.uniprot.org/blast/?about=P49334[98-119]. We synthesized the sequence and linked it with RFP & YFP.

    The document we mainly refer to is:

    Plant Physiology July 2000 vol. 123 no. 3 811-816

Context 2
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