2fjn: Difference between revisions
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==The structure of phosphotyrosine phosphatase 1B in complex with compound 2== | ==The structure of phosphotyrosine phosphatase 1B in complex with compound 2== | ||
<StructureSection load='2fjn' size='340' side='right' caption='[[2fjn]], [[Resolution|resolution]] 2.20Å' scene=''> | <StructureSection load='2fjn' size='340' side='right'caption='[[2fjn]], [[Resolution|resolution]] 2.20Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2fjn]] is a 2 chain structure with sequence from [ | <table><tr><td colspan='2'>[[2fjn]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2FJN OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2FJN FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=073:(4-{(2S,4E)-2-(1H-1,2,3-BENZOTRIAZOL-1-YL)-2-[4-(METHOXYCARBONYL)PHENYL]-5-PHENYLPENT-4-ENYL}PHENYL)(DIFLUORO)METHYLPHOSPHONIC+ACID'>073</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.2Å</td></tr> | ||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=073:(4-{(2S,4E)-2-(1H-1,2,3-BENZOTRIAZOL-1-YL)-2-[4-(METHOXYCARBONYL)PHENYL]-5-PHENYLPENT-4-ENYL}PHENYL)(DIFLUORO)METHYLPHOSPHONIC+ACID'>073</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</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=2fjn FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2fjn OCA], [https://pdbe.org/2fjn PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2fjn RCSB], [https://www.ebi.ac.uk/pdbsum/2fjn PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2fjn ProSAT]</span></td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | |||
</table> | </table> | ||
== Function == | == Function == | ||
[ | [https://www.uniprot.org/uniprot/PTN1_HUMAN PTN1_HUMAN] Tyrosine-protein phosphatase which acts as a regulator of endoplasmic reticulum unfolded protein response. Mediates dephosphorylation of EIF2AK3/PERK; inactivating the protein kinase activity of EIF2AK3/PERK. May play an important role in CKII- and p60c-src-induced signal transduction cascades. May regulate the EFNA5-EPHA3 signaling pathway which modulates cell reorganization and cell-cell repulsion.<ref>PMID:21135139</ref> <ref>PMID:22169477</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/fj/2fjn_consurf.spt"</scriptWhenChecked> | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/fj/2fjn_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> | ||
</jmolCheckbox> | </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/ | </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=2fjn ConSurf]. | ||
<div style="clear:both"></div> | <div style="clear:both"></div> | ||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
| Line 29: | Line 28: | ||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
</div> | </div> | ||
<div class="pdbe-citations 2fjn" style="background-color:#fffaf0;"></div> | |||
==See Also== | ==See Also== | ||
*[[Tyrosine phosphatase|Tyrosine phosphatase]] | *[[Tyrosine phosphatase 3D structures|Tyrosine phosphatase 3D structures]] | ||
== References == | == References == | ||
<references/> | <references/> | ||
| Line 37: | Line 37: | ||
</StructureSection> | </StructureSection> | ||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: Asante-Appiah | [[Category: Asante-Appiah E]] | ||
[[Category: Becker | [[Category: Becker JW]] | ||
[[Category: Desponts | [[Category: Desponts C]] | ||
[[Category: Dufresne | [[Category: Dufresne C]] | ||
[[Category: Friesen | [[Category: Friesen R]] | ||
[[Category: Kennedy | [[Category: Kennedy BP]] | ||
[[Category: Lau | [[Category: Lau C]] | ||
[[Category: Leblanc | [[Category: Leblanc Y]] | ||
[[Category: Patel | [[Category: Patel S]] | ||
[[Category: Scapin | [[Category: Scapin G]] | ||
[[Category: Taylor | [[Category: Taylor JM]] | ||
[[Category: Therien | [[Category: Therien M]] | ||
Latest revision as of 12:27, 30 August 2023
The structure of phosphotyrosine phosphatase 1B in complex with compound 2The structure of phosphotyrosine phosphatase 1B in complex with compound 2
Structural highlights
FunctionPTN1_HUMAN Tyrosine-protein phosphatase which acts as a regulator of endoplasmic reticulum unfolded protein response. Mediates dephosphorylation of EIF2AK3/PERK; inactivating the protein kinase activity of EIF2AK3/PERK. May play an important role in CKII- and p60c-src-induced signal transduction cascades. May regulate the EFNA5-EPHA3 signaling pathway which modulates cell reorganization and cell-cell repulsion.[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 PubMedPTP-1B represents an attractive target for the treatment of type 2 diabetes and obesity. Given the role that protein phosphatases play in the regulation of many biologically relevant processes, inhibitors against PTP-1B must be not only potent, but also selective. It has been extremely difficult to synthesize inhibitors that are selective over the highly homologous TCPTP. We have successfully exploited the conservative Leu119 to Val substitution between the two enzymes to synthesize a PTP-1B inhibitor that is an order of magnitude more selective over TCPTP. Structural analyses of PTP-1B/inhibitor complexes show a conformation-assisted inhibition mechanism as the basis for selectivity. Such an inhibitory mechanism may be applicable to other homologous enzymes. Conformation-assisted inhibition of protein-tyrosine phosphatase-1B elicits inhibitor selectivity over T-cell protein-tyrosine phosphatase.,Asante-Appiah E, Patel S, Desponts C, Taylor JM, Lau C, Dufresne C, Therien M, Friesen R, Becker JW, Leblanc Y, Kennedy BP, Scapin G J Biol Chem. 2006 Mar 24;281(12):8010-5. Epub 2006 Jan 6. PMID:16407290[3] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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