1z2d: Difference between revisions
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< | ==Solution Structure of Bacillus subtilis ArsC in reduced state== | ||
<StructureSection load='1z2d' size='340' side='right'caption='[[1z2d]]' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[1z2d]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Bacillus_subtilis Bacillus subtilis]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1Z2D OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1Z2D FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1z2d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1z2d OCA], [https://pdbe.org/1z2d PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1z2d RCSB], [https://www.ebi.ac.uk/pdbsum/1z2d PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1z2d ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/ARSC_BACSU ARSC_BACSU] Reduces arsenate [As(V)] to arsenite [As(III)] and dephosphorylates tyrosine phosphorylated proteins, low-MW aryl phosphates and natural and synthetic acyl phosphates. Could switch between different functions in different circumstances (By similarity). | |||
== Evolutionary Conservation == | |||
[[Image:Consurf_key_small.gif|200px|right]] | |||
Check<jmol> | |||
<jmolCheckbox> | |||
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/z2/1z2d_consurf.spt"</scriptWhenChecked> | |||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | |||
<text>to colour the structure by Evolutionary Conservation</text> | |||
</jmolCheckbox> | |||
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1z2d ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Arsenate reductase encoded by the chromosomal arsC gene in Bacillus subtilis catalyzes the intracellular reduction of arsenate to arsenite, which is then extruded from cells through an efficient and specific transport system. Herein, we present the solution structures and backbone dynamics of both the reduced and oxidized forms of arsenate reductase from B. subtilis. The overall structures of both forms are similar to those of bovine low molecular weight protein-tyrosine phosphatase and arsenate reductase from Staphylococcus aureus. However, several features of the tertiary structure and mobility are notably different between the reduced and oxidized forms of B. subtilis arsenate reductase, particularly in the P-loop region and the segment Cys(82)-Cys(89). The backbone dynamics results demonstrated that the reduced form of arsenate reductase undergoes millisecond conformational changes in the functional P-loop and Cys(82)-Cys(89), which may facilitate the formation of covalent intermediates and subsequent reduction of arsenate. In the oxidized form, Cys(82)-Cys(89) shows motional flexibility on both picosecond-to-nanosecond and possibly millisecond time scales, which may facilitate the reduction of the oxidized enzyme by thioredoxin to regenerate the active enzyme. Overall, the internal dynamics and static structures of the enzyme provide insights into the molecular mechanism of arsenate reduction, especially the reversible conformational switch and changes in internal motions associated with the catalytic reaction. | |||
Solution structures and backbone dynamics of arsenate reductase from Bacillus subtilis: reversible conformational switch associated with arsenate reduction.,Guo X, Li Y, Peng K, Hu Y, Li C, Xia B, Jin C J Biol Chem. 2005 Nov 25;280(47):39601-8. Epub 2005 Sep 28. PMID:16192272<ref>PMID:16192272</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 1z2d" style="background-color:#fffaf0;"></div> | |||
== | |||
==See Also== | ==See Also== | ||
*[[ | *[[Arsenate reductase 3D structures|Arsenate reductase 3D structures]] | ||
== References == | |||
== | <references/> | ||
< | __TOC__ | ||
</StructureSection> | |||
[[Category: Bacillus subtilis]] | [[Category: Bacillus subtilis]] | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: | [[Category: Jin C]] | ||
[[Category: | [[Category: Li Y]] | ||
Latest revision as of 11:08, 15 May 2024
Solution Structure of Bacillus subtilis ArsC in reduced stateSolution Structure of Bacillus subtilis ArsC in reduced state
Structural highlights
FunctionARSC_BACSU Reduces arsenate [As(V)] to arsenite [As(III)] and dephosphorylates tyrosine phosphorylated proteins, low-MW aryl phosphates and natural and synthetic acyl phosphates. Could switch between different functions in different circumstances (By similarity). 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 PubMedArsenate reductase encoded by the chromosomal arsC gene in Bacillus subtilis catalyzes the intracellular reduction of arsenate to arsenite, which is then extruded from cells through an efficient and specific transport system. Herein, we present the solution structures and backbone dynamics of both the reduced and oxidized forms of arsenate reductase from B. subtilis. The overall structures of both forms are similar to those of bovine low molecular weight protein-tyrosine phosphatase and arsenate reductase from Staphylococcus aureus. However, several features of the tertiary structure and mobility are notably different between the reduced and oxidized forms of B. subtilis arsenate reductase, particularly in the P-loop region and the segment Cys(82)-Cys(89). The backbone dynamics results demonstrated that the reduced form of arsenate reductase undergoes millisecond conformational changes in the functional P-loop and Cys(82)-Cys(89), which may facilitate the formation of covalent intermediates and subsequent reduction of arsenate. In the oxidized form, Cys(82)-Cys(89) shows motional flexibility on both picosecond-to-nanosecond and possibly millisecond time scales, which may facilitate the reduction of the oxidized enzyme by thioredoxin to regenerate the active enzyme. Overall, the internal dynamics and static structures of the enzyme provide insights into the molecular mechanism of arsenate reduction, especially the reversible conformational switch and changes in internal motions associated with the catalytic reaction. Solution structures and backbone dynamics of arsenate reductase from Bacillus subtilis: reversible conformational switch associated with arsenate reduction.,Guo X, Li Y, Peng K, Hu Y, Li C, Xia B, Jin C J Biol Chem. 2005 Nov 25;280(47):39601-8. Epub 2005 Sep 28. PMID:16192272[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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