2i6m: Difference between revisions
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==Crystal structure of the complexes of the archaeal sulfolobus PTP-fold phosphatase with Tungstate== | ==Crystal structure of the complexes of the archaeal sulfolobus PTP-fold phosphatase with Tungstate== | ||
<StructureSection load='2i6m' size='340' side='right' caption='[[2i6m]], [[Resolution|resolution]] 1.90Å' scene=''> | <StructureSection load='2i6m' size='340' side='right'caption='[[2i6m]], [[Resolution|resolution]] 1.90Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2i6m]] is a 1 chain structure with sequence from [ | <table><tr><td colspan='2'>[[2i6m]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharolobus_solfataricus Saccharolobus solfataricus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2I6M OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2I6M 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]] 1.9Å</td></tr> | ||
<tr id=' | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=WO4:TUNGSTATE(VI)ION'>WO4</scene></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=2i6m FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2i6m OCA], [https://pdbe.org/2i6m PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2i6m RCSB], [https://www.ebi.ac.uk/pdbsum/2i6m PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2i6m ProSAT]</span></td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | |||
</table> | </table> | ||
== Function == | |||
[https://www.uniprot.org/uniprot/Q97VZ7_SACS2 Q97VZ7_SACS2] | |||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
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==See Also== | ==See Also== | ||
*[[Tyrosine phosphatase|Tyrosine phosphatase]] | *[[Tyrosine phosphatase 3D structures|Tyrosine phosphatase 3D structures]] | ||
== References == | == References == | ||
<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: Large Structures]] | |||
[[Category: Saccharolobus solfataricus]] | [[Category: Saccharolobus solfataricus]] | ||
[[Category: Chu HM]] | |||
[[Category: Chu | [[Category: Wang AHJ]] | ||
[[Category: Wang | |||
Latest revision as of 11:52, 25 October 2023
Crystal structure of the complexes of the archaeal sulfolobus PTP-fold phosphatase with TungstateCrystal structure of the complexes of the archaeal sulfolobus PTP-fold phosphatase with Tungstate
Structural highlights
FunctionEvolutionary 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 P-loop-containing protein phos-phatases are important regulators in signal transduction. These enzymes have structural and functional similarity with a conserved sequence of Dx(25-41)HCxxGxxR(T/S) essential for catalysis. The singular protein tyrosine phosphatase (PTP) from archaeal Sulfolobus solfataricus is one of the smallest known PTPs with extreme thermostability. Here, we report the crystal structure of this phosphatase and its complexes with two tyrosyl phosphopeptides A-(p)Y-R and N-K-(p)Y-G-N. The structure suggests the minimal structural motif of the PTP family, having two variable sequences inserted between the beta2-beta3 and beta3-beta4 strands, respectively. The phosphate of both phosphopeptide substrates is bound to the P-loop through several hydrogen bonds. Comparison of several phosphatase-substrate complexes revealed that Gln135 on the Q-loop has different modes of recognition toward phosphopeptides. The substrate specificity of SsoPTP is primarily localized at the phosphotyrosine, suggesting that this phosphatase may be a prototypical PTP. Enzyme-substrate interactions revealed by the crystal structures of the archaeal Sulfolobus PTP-fold phosphatase and its phosphopeptide complexes.,Chu HM, Wang AH Proteins. 2007 Mar 1;66(4):996-1003. PMID:17173287[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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