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==The plug domain of the SecY protein stablizes the closed state of the translocation channel and maintains a membrane seal== | ==The plug domain of the SecY protein stablizes the closed state of the translocation channel and maintains a membrane seal== | ||
<StructureSection load='2yxq' size='340' side='right' caption='[[2yxq]], [[Resolution|resolution]] 3.50Å' scene=''> | <StructureSection load='2yxq' size='340' side='right'caption='[[2yxq]], [[Resolution|resolution]] 3.50Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2yxq]] is a 3 chain structure with sequence from [ | <table><tr><td colspan='2'>[[2yxq]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Atcc_43067 Atcc 43067]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2YXQ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2YXQ FirstGlance]. <br> | ||
</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1rhz|1rhz]], [[1rh5|1rh5]]</td></tr> | </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1rhz|1rhz]], [[1rh5|1rh5]]</div></td></tr> | ||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">secY ([ | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">secY ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2190 ATCC 43067]), secE ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2190 ATCC 43067]), secG ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2190 ATCC 43067])</td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2yxq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2yxq OCA], [https://pdbe.org/2yxq PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2yxq RCSB], [https://www.ebi.ac.uk/pdbsum/2yxq PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2yxq ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
[[ | [[https://www.uniprot.org/uniprot/SECY_METJA SECY_METJA]] The central subunit of the protein translocation channel SecYEG. Consists of two halves formed by TMs 1-5 and 6-10. These two domains form a lateral gate at the front which open onto the bilayer between TMs 2 and 7, and are clamped together by SecE at the back. The channel is closed by both a pore ring composed of hydrophobic SecY resides and a short helix (helix 2A) on the extracellular side of the membrane which forms a plug. The plug probably moves laterally to allow the channel to open. The ring and the pore may move independently. [[https://www.uniprot.org/uniprot/SECG_METJA SECG_METJA]] Subunit of the protein translocation channel SecYEG. The function of the beta subunit is unknown, but it may be involved in stabilization of the trimeric complex. [[https://www.uniprot.org/uniprot/SECE_METJA SECE_METJA]] Essential subunit of the protein translocation channel SecYEG. Clamps together the 2 halves of SecY. May contact the channel plug during translocation. | ||
== 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: Atcc 43067]] | [[Category: Atcc 43067]] | ||
[[Category: Large Structures]] | |||
[[Category: Li, W]] | [[Category: Li, W]] | ||
[[Category: Schulman, S]] | [[Category: Schulman, S]] | ||
Revision as of 13:42, 8 December 2021
The plug domain of the SecY protein stablizes the closed state of the translocation channel and maintains a membrane sealThe plug domain of the SecY protein stablizes the closed state of the translocation channel and maintains a membrane seal
Structural highlights
Function[SECY_METJA] The central subunit of the protein translocation channel SecYEG. Consists of two halves formed by TMs 1-5 and 6-10. These two domains form a lateral gate at the front which open onto the bilayer between TMs 2 and 7, and are clamped together by SecE at the back. The channel is closed by both a pore ring composed of hydrophobic SecY resides and a short helix (helix 2A) on the extracellular side of the membrane which forms a plug. The plug probably moves laterally to allow the channel to open. The ring and the pore may move independently. [SECG_METJA] Subunit of the protein translocation channel SecYEG. The function of the beta subunit is unknown, but it may be involved in stabilization of the trimeric complex. [SECE_METJA] Essential subunit of the protein translocation channel SecYEG. Clamps together the 2 halves of SecY. May contact the channel plug during translocation. Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. See Also |
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