View source for 1pyn


==DUAL-SITE POTENT, SELECTIVE PROTEIN TYROSINE PHOSPHATASE 1B INHIBITOR USING A LINKED FRAGMENT STRATEGY AND A MALONATE HEAD ON THE FIRST SITE==
<StructureSection load='1pyn' size='340' side='right'caption='[[1pyn]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1pyn]] 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=1PYN OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1PYN FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.2&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=941:2-(4-{2-TERT-BUTOXYCARBONYLAMINO-2-[4-(3-HYDROXY-2-METHOXYCARBONYL-PHENOXY)-BUTYLCARBAMOYL]-ETHYL}-PHENOXY)-MALONIC+ACID'>941</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=1pyn FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1pyn OCA], [https://pdbe.org/1pyn PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1pyn RCSB], [https://www.ebi.ac.uk/pdbsum/1pyn PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1pyn ProSAT]</span></td></tr>
</table>
== 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 ==
[[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/py/1pyn_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=1pyn ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
A salicylate second site binder was linked to three classes of phosphotyrosine mimetics to produce potent protein tyrosine phosphatase 1B (PTP1B) inhibitors which exhibit significant selectivity against other phosphatases including the most homologous member, TCPTP.

Discovery and SAR of novel, potent and selective protein tyrosine phosphatase 1B inhibitors.,Pei Z, Li X, Liu G, Abad-Zapatero C, Lubben T, Zhang T, Ballaron SJ, Hutchins CW, Trevillyan JM, Jirousek MR Bioorg Med Chem Lett. 2003 Oct 6;13(19):3129-32. PMID:12951078<ref>PMID:12951078</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1pyn" style="background-color:#fffaf0;"></div>

==See Also==
*[[Tyrosine phosphatase 3D structures|Tyrosine phosphatase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Abad-Zapatero C]]
[[Category: Ballaron SJ]]
[[Category: Hajduk PJ]]
[[Category: Liang H]]
[[Category: Liu G]]
[[Category: Lubben T]]
[[Category: Stashko M]]
[[Category: Szczepankiewicz BG]]
[[Category: Trevillyan JM]]
[[Category: Zhonghua P]]