3ppq
From Proteopedia
(Difference between revisions)
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| - | + | ==Structures of the substrate-binding protein provide insights into the multiple compatible solutes binding specificities of Bacillus subtilis ABC transporter OpuC== | |
| - | + | <StructureSection load='3ppq' size='340' side='right' caption='[[3ppq]], [[Resolution|resolution]] 1.91Å' scene=''> | |
| - | + | == Structural highlights == | |
| - | + | <table><tr><td colspan='2'>[[3ppq]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_globigii"_migula_1900 "bacillus globigii" migula 1900]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3PPQ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3PPQ FirstGlance]. <br> | |
| - | ==Function== | + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CHT:CHOLINE+ION'>CHT</scene></td></tr> |
| + | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3ppn|3ppn]], [[3ppo|3ppo]], [[3ppp|3ppp]], [[3ppr|3ppr]]</td></tr> | ||
| + | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">opuCC ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1423 "Bacillus globigii" Migula 1900])</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=3ppq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3ppq OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3ppq RCSB], [http://www.ebi.ac.uk/pdbsum/3ppq PDBsum]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
[[http://www.uniprot.org/uniprot/OPUCC_BACSU OPUCC_BACSU]] Member of a high affinity multicomponent binding-protein-dependent transport system for glycine betaine, carnitine, and choline.<ref>PMID:10216873</ref> <ref>PMID:8752321</ref> | [[http://www.uniprot.org/uniprot/OPUCC_BACSU OPUCC_BACSU]] Member of a high affinity multicomponent binding-protein-dependent transport system for glycine betaine, carnitine, and choline.<ref>PMID:10216873</ref> <ref>PMID:8752321</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | The compatible solute ATP-binding cassette (ABC) transporters are indispensable for acquiring a variety of compatible solutes under osmotic stress in Bacillus subtilis. The substrate-binding protein OpuCC of the ABC transporter OpuC can recognize a broad spectrum of compatible solutes, compared to its 70% sequence-identical paralog OpuBC that can solely bind choline. To explore the structural basis of this difference of substrate specificity, we determined crystal structures of OpuCC in the apo-form and in complex with carnitine, glycine betaine, choline and ectoine, respectively. OpuCC is composed of two alpha/beta/alpha globular sandwich domains linked by two hinge regions, with substrate-binding pocket located at the inter-domain cleft. Upon substrate-binding, the two domains shift towards each other to trap the substrate. Comparative structural analysis revealed a plastic pocket that fits various compatible solutes, which attributes the multiple-substrate binding property to OpuCC. This plasticity is a gain-of-function via a single-residue mutation of Thr94 in OpuCC versus Asp96 in OpuBC. | ||
| - | + | Structures of the substrate-binding protein provide insights into the multiple compatible solutes binding specificities of Bacillus subtilis ABC transporter OpuC.,Du Y, Shi WW, He YX, Yang YH, Zhou CZ, Chen Y Biochem J. 2011 Mar 3. PMID:21366542<ref>PMID:21366542</ref> | |
| - | + | ||
| + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| + | </div> | ||
==See Also== | ==See Also== | ||
*[[ABC transporter|ABC transporter]] | *[[ABC transporter|ABC transporter]] | ||
| - | + | == References == | |
| - | == | + | <references/> |
| - | + | __TOC__ | |
| + | </StructureSection> | ||
[[Category: Bacillus globigii migula 1900]] | [[Category: Bacillus globigii migula 1900]] | ||
| - | [[Category: Chen, Y | + | [[Category: Chen, Y]] |
| - | [[Category: Du, Y | + | [[Category: Du, Y]] |
| - | [[Category: He, Y X | + | [[Category: He, Y X]] |
| - | [[Category: Shi, W W | + | [[Category: Shi, W W]] |
| - | [[Category: Yang, Y H | + | [[Category: Yang, Y H]] |
| - | [[Category: Zhou, C Z | + | [[Category: Zhou, C Z]] |
[[Category: Alpha-beta-alpha sandwich]] | [[Category: Alpha-beta-alpha sandwich]] | ||
[[Category: Osmoprotectant]] | [[Category: Osmoprotectant]] | ||
[[Category: Transport protein]] | [[Category: Transport protein]] | ||
Revision as of 22:47, 25 December 2014
Structures of the substrate-binding protein provide insights into the multiple compatible solutes binding specificities of Bacillus subtilis ABC transporter OpuC
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