| 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
High-throughput screening of the P&GP corporate repository against several protein tyrosine phosphatases identified the sulfamic acid moiety as potential phosphotyrosine mimetic. Incorporation of the sulfamic acid onto a 1,2,3,4-tetrahydroisoquinoline scaffold provided a promising starting point for PTP1B inhibitor design.
1,2,3,4-Tetrahydroisoquinolinyl sulfamic acids as phosphatase PTP1B inhibitors.,Klopfenstein SR, Evdokimov AG, Colson AO, Fairweather NT, Neuman JJ, Maier MB, Gray JL, Gerwe GS, Stake GE, Howard BW, Farmer JA, Pokross ME, Downs TR, Kasibhatla B, Peters KG Bioorg Med Chem Lett. 2006 Mar 15;16(6):1574-8. Epub 2006 Jan 4. PMID:16386905[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
- ↑ Klopfenstein SR, Evdokimov AG, Colson AO, Fairweather NT, Neuman JJ, Maier MB, Gray JL, Gerwe GS, Stake GE, Howard BW, Farmer JA, Pokross ME, Downs TR, Kasibhatla B, Peters KG. 1,2,3,4-Tetrahydroisoquinolinyl sulfamic acids as phosphatase PTP1B inhibitors. Bioorg Med Chem Lett. 2006 Mar 15;16(6):1574-8. Epub 2006 Jan 4. PMID:16386905 doi:http://dx.doi.org/10.1016/j.bmcl.2005.12.051
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