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| | <StructureSection load='1q1m' size='340' side='right'caption='[[1q1m]], [[Resolution|resolution]] 2.60Å' scene=''> | | <StructureSection load='1q1m' size='340' side='right'caption='[[1q1m]], [[Resolution|resolution]] 2.60Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[1q1m]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1Q1M OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=1Q1M FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[1q1m]] is a 1 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=1Q1M OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1Q1M FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=234:5-{2-FLUORO-5-[3-(3-HYDROXY-2-METHOXYCARBONYL-PHENOXY)-PROPENYL]-PHENYL}-ISOXAZOLE-3-CARBOXYLIC+ACID'>234</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.6Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1nl9|1nl9]], [[1nny|1nny]], [[1no6|1no6]], [[1nz7|1nz7]], [[1ony|1ony]], [[1pho|1pho]]</div></td></tr>
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=234:5-{2-FLUORO-5-[3-(3-HYDROXY-2-METHOXYCARBONYL-PHENOXY)-PROPENYL]-PHENYL}-ISOXAZOLE-3-CARBOXYLIC+ACID'>234</scene></td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">PTPN1 OR PTP1B ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</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=1q1m FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1q1m OCA], [https://pdbe.org/1q1m PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1q1m RCSB], [https://www.ebi.ac.uk/pdbsum/1q1m PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1q1m ProSAT]</span></td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Protein-tyrosine-phosphatase Protein-tyrosine-phosphatase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.3.48 3.1.3.48] </span></td></tr>
| + | |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=1q1m FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1q1m OCA], [http://pdbe.org/1q1m PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1q1m RCSB], [http://www.ebi.ac.uk/pdbsum/1q1m PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1q1m ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://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> | + | [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]] |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Human]] | + | [[Category: Homo sapiens]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Protein-tyrosine-phosphatase]]
| + | [[Category: Abad-Zapatero C]] |
| - | [[Category: Abad-Zapatero, C]] | + | [[Category: Ballaron SJ]] |
| - | [[Category: Ballaron, S J]] | + | [[Category: Haasch DL]] |
| - | [[Category: Haasch, D L]] | + | [[Category: Hajduk PJ]] |
| - | [[Category: Hajduk, P J]] | + | [[Category: Hutchins CW]] |
| - | [[Category: Hutchins, C W]] | + | [[Category: Jirousek MR]] |
| - | [[Category: Jirousek, M R]] | + | [[Category: Kaszubska W]] |
| - | [[Category: Kaszubska, W]] | + | [[Category: Liu G]] |
| - | [[Category: Liu, G]] | + | [[Category: Lubben TH]] |
| - | [[Category: Lubben, T H]] | + | [[Category: Pei Z]] |
| - | [[Category: Pei, Z]] | + | [[Category: Rondinone CM]] |
| - | [[Category: Rondinone, C M]] | + | [[Category: Trevillyan JM]] |
| - | [[Category: Trevillyan, J M]] | + | [[Category: Xin Z]] |
| - | [[Category: Xin, Z]] | + | [[Category: Zhao H]] |
| - | [[Category: Zhao, H]] | + | |
| - | [[Category: Hydrolase]]
| + | |
| - | [[Category: Inhibitors with isoxazole-salicylate pharmacophore]]
| + | |
| - | [[Category: Protein tyrosine phosphatase 1b]]
| + | |
| - | [[Category: Ptp1b]]
| + | |
| Structural highlights
Function
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.[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 PubMed
Using an NMR-based fragment screening and X-ray crystal structure-based assembly, starting with millimolar ligands for both the catalytic site and the second phosphotyrosine binding site, we have identified a small-molecule inhibitor of protein tyrosine phosphatase 1B with low micromolar inhibition constant, high selectivity (30-fold) over the highly homologous T-cell protein tyrosine phosphatase, and good cellular activity in COS-7 cells.
Fragment screening and assembly: a highly efficient approach to a selective and cell active protein tyrosine phosphatase 1B inhibitor.,Liu G, Xin Z, Pei Z, Hajduk PJ, Abad-Zapatero C, Hutchins CW, Zhao H, Lubben TH, Ballaron SJ, Haasch DL, Kaszubska W, Rondinone CM, Trevillyan JM, Jirousek MR J Med Chem. 2003 Sep 25;46(20):4232-5. PMID:13678400[3]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Nievergall E, Janes PW, Stegmayer C, Vail ME, Haj FG, Teng SW, Neel BG, Bastiaens PI, Lackmann M. PTP1B regulates Eph receptor function and trafficking. J Cell Biol. 2010 Dec 13;191(6):1189-203. doi: 10.1083/jcb.201005035. Epub 2010, Dec 6. PMID:21135139 doi:10.1083/jcb.201005035
- ↑ Krishnan N, Fu C, Pappin DJ, Tonks NK. H2S-Induced sulfhydration of the phosphatase PTP1B and its role in the endoplasmic reticulum stress response. Sci Signal. 2011 Dec 13;4(203):ra86. doi: 10.1126/scisignal.2002329. PMID:22169477 doi:10.1126/scisignal.2002329
- ↑ Liu G, Xin Z, Pei Z, Hajduk PJ, Abad-Zapatero C, Hutchins CW, Zhao H, Lubben TH, Ballaron SJ, Haasch DL, Kaszubska W, Rondinone CM, Trevillyan JM, Jirousek MR. Fragment screening and assembly: a highly efficient approach to a selective and cell active protein tyrosine phosphatase 1B inhibitor. J Med Chem. 2003 Sep 25;46(20):4232-5. PMID:13678400 doi:10.1021/jm034122o
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