4bjo

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Template:STRUCTURE 4bjo

Contents

Nitrate in the active site of PTP1b is a putative mimetic of the transition state

Template:ABSTRACT PUBMED 24531490

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]

About this Structure

4bjo is a 2 chain structure. Full crystallographic information is available from OCA.

Reference

  • Kenny PW, Newman J, Peat TS. Nitrate in the active site of protein tyrosine phosphatase 1B is a putative mimetic of the transition state. Acta Crystallogr D Biol Crystallogr. 2014 Feb;70(Pt 2):565-71. doi:, 10.1107/S1399004713031052. Epub 2014 Jan 31. PMID:24531490 doi:http://dx.doi.org/10.1107/S1399004713031052
  1. ↑ 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
  2. ↑ 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

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