| 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
A novel pyridothiophene inhibitor of PTP1B was discovered by rational screening of phosphotyrosine mimics at high micromolar concentrations. The potency of this lead compound has been improved significantly by medicinal chemistry guided by X-ray crystallography and molecular modeling. Excellent consistency has been observed between structure-activity relationships and structural information from PTP1B-inhibitor complexes.
Bicyclic and tricyclic thiophenes as protein tyrosine phosphatase 1B inhibitors.,Moretto AF, Kirincich SJ, Xu WX, Smith MJ, Wan ZK, Wilson DP, Follows BC, Binnun E, Joseph-McCarthy D, Foreman K, Erbe DV, Zhang YL, Tam SK, Tam SY, Lee J Bioorg Med Chem. 2006 Apr 1;14(7):2162-77. Epub 2005 Nov 21. PMID:16303309[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
- ↑ Moretto AF, Kirincich SJ, Xu WX, Smith MJ, Wan ZK, Wilson DP, Follows BC, Binnun E, Joseph-McCarthy D, Foreman K, Erbe DV, Zhang YL, Tam SK, Tam SY, Lee J. Bicyclic and tricyclic thiophenes as protein tyrosine phosphatase 1B inhibitors. Bioorg Med Chem. 2006 Apr 1;14(7):2162-77. Epub 2005 Nov 21. PMID:16303309 doi:10.1016/j.bmc.2005.11.005
|
