2gsk
From Proteopedia
(Difference between revisions)
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== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2gsk]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2GSK OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2GSK FirstGlance]. <br> | <table><tr><td colspan='2'>[[2gsk]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2GSK OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2GSK FirstGlance]. <br> | ||
| - | </td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=CNC:CO-CYANOCOBALAMIN'>CNC</scene>, <scene name='pdbligand=HEX:HEXANE'>HEX</scene>, <scene name='pdbligand=LDA:LAURYL+DIMETHYLAMINE-N-OXIDE'>LDA</scene>, <scene name='pdbligand=OCT:N-OCTANE'>OCT</scene>< | + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=CNC:CO-CYANOCOBALAMIN'>CNC</scene>, <scene name='pdbligand=HEX:HEXANE'>HEX</scene>, <scene name='pdbligand=LDA:LAURYL+DIMETHYLAMINE-N-OXIDE'>LDA</scene>, <scene name='pdbligand=OCT:N-OCTANE'>OCT</scene></td></tr> |
| - | <tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">btuB, bfe, cer, dcrC ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli]), tonB, exbA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli])</td></tr> | + | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">btuB, bfe, cer, dcrC ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli]), tonB, exbA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli])</td></tr> |
| - | <tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2gsk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2gsk OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2gsk RCSB], [http://www.ebi.ac.uk/pdbsum/2gsk PDBsum]</span></td></tr> | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2gsk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2gsk OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2gsk RCSB], [http://www.ebi.ac.uk/pdbsum/2gsk PDBsum]</span></td></tr> |
| - | <table> | + | </table> |
| + | == Function == | ||
| + | [[http://www.uniprot.org/uniprot/BTUB_ECOLI BTUB_ECOLI]] Involved in the active translocation of vitamin B12 (cyanocobalamin) across the outer membrane to the periplasmic space. It derives its energy for transport by interacting with the trans-periplasmic membrane protein TonB. Is also a receptor for bacteriophages BF23 and C1, and for A and E colicins.[HAMAP-Rule:MF_01531] [[http://www.uniprot.org/uniprot/TONB_ECOLI TONB_ECOLI]] Interacts with outer membrane receptor proteins that carry out high-affinity binding and energy dependent uptake into the periplasmic space of specific substrates such as cobalamin, and various iron compounds (such as iron dicitrate, enterochelin, aerobactin, etc.). In the absence of TonB these receptors bind their substrates but do not carry out active transport. TonB also interacts with some colicins and is involved in the energy-dependent, irreversible steps of bacteriophages phi 80 and T1 infection. It could act to transduce energy from the cytoplasmic membrane to specific energy-requiring processes in the outer membrane, resulting in the release into the periplasm of ligands bound by these outer membrane proteins. | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
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</StructureSection> | </StructureSection> | ||
[[Category: Escherichia coli]] | [[Category: Escherichia coli]] | ||
| - | [[Category: Banchs, C N | + | [[Category: Banchs, C N]] |
| - | [[Category: Purdy, M P | + | [[Category: Purdy, M P]] |
| - | [[Category: Shultis, D D | + | [[Category: Shultis, D D]] |
| - | [[Category: Wiener, M C | + | [[Category: Wiener, M C]] |
[[Category: Beta-barrel]] | [[Category: Beta-barrel]] | ||
[[Category: Membrane protein]] | [[Category: Membrane protein]] | ||
Revision as of 20:45, 25 December 2014
Structure of the BtuB:TonB Complex
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