2nq2: Difference between revisions
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==An inward-facing conformation of a putative metal-chelate type ABC transporter.== | ==An inward-facing conformation of a putative metal-chelate type ABC transporter.== | ||
<StructureSection load='2nq2' size='340' side='right' caption='[[2nq2]], [[Resolution|resolution]] 2.40Å' scene=''> | <StructureSection load='2nq2' size='340' side='right'caption='[[2nq2]], [[Resolution|resolution]] 2.40Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2nq2]] is a 4 chain structure with sequence from [ | <table><tr><td colspan='2'>[[2nq2]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Haemophilus_influenzae Haemophilus influenzae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2NQ2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2NQ2 FirstGlance]. <br> | ||
</td></tr><tr id=' | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.4Å</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=2nq2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2nq2 OCA], [https://pdbe.org/2nq2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2nq2 RCSB], [https://www.ebi.ac.uk/pdbsum/2nq2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2nq2 ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
[ | [https://www.uniprot.org/uniprot/MOLB_HAEIN MOLB_HAEIN] Part of the ABC transporter complex MolBCA involved in molybdate import (PubMed:22078568, PubMed:24722984). Responsible for the translocation of the substrate across the membrane (PubMed:24722984). Functions as a low-affinity molybdate transporter (PubMed:24722984).<ref>PMID:22078568</ref> <ref>PMID:24722984</ref> | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/nq/2nq2_consurf.spt"</scriptWhenChecked> | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/nq/2nq2_consurf.spt"</scriptWhenChecked> | ||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
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__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: | [[Category: Haemophilus influenzae]] | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: | [[Category: Lee AT]] | ||
[[Category: | [[Category: Locher KP]] | ||
[[Category: | [[Category: Lum P]] | ||
[[Category: | [[Category: Pinkett HP]] | ||
[[Category: | [[Category: Rees DC]] | ||
Latest revision as of 03:09, 28 December 2023
An inward-facing conformation of a putative metal-chelate type ABC transporter.An inward-facing conformation of a putative metal-chelate type ABC transporter.
Structural highlights
FunctionMOLB_HAEIN Part of the ABC transporter complex MolBCA involved in molybdate import (PubMed:22078568, PubMed:24722984). Responsible for the translocation of the substrate across the membrane (PubMed:24722984). Functions as a low-affinity molybdate transporter (PubMed:24722984).[1] [2] Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedThe crystal structure of a putative metal-chelate-type adenosine triphosphate (ATP)-binding cassette (ABC) transporter encoded by genes HI1470 and HI1471 of Haemophilus influenzae has been solved at 2.4 angstrom resolution. The permeation pathway exhibits an inward-facing conformation, in contrast to the outward-facing state previously observed for the homologous vitamin B12 importer BtuCD. Although the structures of both HI1470/1 and BtuCD have been solved in nucleotide-free states, the pairs of ABC subunits in these two structures differ by a translational shift in the plane of the membrane that coincides with a repositioning of the membrane-spanning subunits. The differences observed between these ABC transporters involve relatively modest rearrangements and may serve as structural models for inward- and outward-facing conformations relevant to the alternating access mechanism of substrate translocation. An inward-facing conformation of a putative metal-chelate-type ABC transporter.,Pinkett HW, Lee AT, Lum P, Locher KP, Rees DC Science. 2007 Jan 19;315(5810):373-7. Epub 2006 Dec 7. PMID:17158291[3] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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