1nz7

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POTENT, SELECTIVE INHIBITORS OF PROTEIN TYROSINE PHOSPHATASE 1B USING A SECOND PHOSPHOTYROSINE BINDING SITE, complexed with compound 19.

Structural highlights

1nz7 is a 1 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.4Å
Ligands:901
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

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

We have previously reported a novel series of oxalyl-aryl-amino benzoic acid-based, catalytic site-directed, competitive, reversible protein tyrosine phosphatase 1B (PTP1B) inhibitors. With readily access to key intermediates, we utilized a solution phase parallel synthesis approach and rapidly identified a highly potent PTP1B inhibitor (19, K(i)=76 nM) with moderate selectivity (5-fold) over T-cell PTPase (TCPTP) through interacting with a second phosphotyrosine binding site (site 2) in the close proximity to the catalytic site.

Potent, selective inhibitors of protein tyrosine phosphatase 1B.,Xin Z, Oost TK, Abad-Zapatero C, Hajduk PJ, Pei Z, Szczepankiewicz BG, Hutchins CW, Ballaron SJ, Stashko MA, Lubben T, Trevillyan JM, Jirousek MR, Liu G Bioorg Med Chem Lett. 2003 Jun 2;13(11):1887-90. PMID:12749891[3]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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Citations
11 reviews cite this structure
Inhibition of the protein tyrosine phosphatase PTP1B: potential therapy for obesity, insulin resistance and type-2 diabetes mellitus.
Koren et al. (2007)
10 more
11 other articles
No citations found

See Also

References

  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
  3. ↑ Xin Z, Oost TK, Abad-Zapatero C, Hajduk PJ, Pei Z, Szczepankiewicz BG, Hutchins CW, Ballaron SJ, Stashko MA, Lubben T, Trevillyan JM, Jirousek MR, Liu G. Potent, selective inhibitors of protein tyrosine phosphatase 1B. Bioorg Med Chem Lett. 2003 Jun 2;13(11):1887-90. PMID:12749891

Contents


PDB ID 1nz7

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OCA

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