1q6t: Difference between revisions

Revision as of 14:30, 28 July 2008

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File:1q6t.png

Template:STRUCTURE 1q6t

THE STRUCTURE OF PHOSPHOTYROSINE PHOSPHATASE 1B IN COMPLEX WITH COMPOUND 11THE STRUCTURE OF PHOSPHOTYROSINE PHOSPHATASE 1B IN COMPLEX WITH COMPOUND 11

Template:ABSTRACT PUBMED 14516196

About this StructureAbout this Structure

1Q6T is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.

ReferenceReference

The structural basis for the selectivity of benzotriazole inhibitors of PTP1B., Scapin G, Patel SB, Becker JW, Wang Q, Desponts C, Waddleton D, Skorey K, Cromlish W, Bayly C, Therien M, Gauthier JY, Li CS, Lau CK, Ramachandran C, Kennedy BP, Asante-Appiah E, Biochemistry. 2003 Oct 7;42(39):11451-9. PMID:14516196

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Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

OCA

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-'''THE STRUCTURE OF PHOSPHOTYROSINE PHOSPHATASE 1B IN COMPLEX WITH COMPOUND 11'''
+===THE STRUCTURE OF PHOSPHOTYROSINE PHOSPHATASE 1B IN COMPLEX WITH COMPOUND 11===
-==Overview==
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-Protein tyrosine phosphatase 1B (PTP1B) has been implicated in the regulation of the insulin signaling pathway and represents an attractive target for the design of inhibitors in the treatment of type 2 diabetes and obesity. Inspection of the structure of PTP1B indicates that potent PTP1B inhibitors may be obtained by targeting a secondary aryl phosphate-binding site as well as the catalytic site. We report here the crystal structures of PTP1B in complex with first and second generation aryldifluoromethyl-phosphonic acid inhibitors. While all compounds bind in a previously unexploited binding pocket near the primary binding site, the second generation compounds also reach into the secondary binding site, and exhibit moderate selectivity for PTP1B over the closely related T-cell phosphatase. The molecular basis for the selectivity has been confirmed by single point mutation at position 52, where the two phosphatases differ by a phenylalanine-to-tyrosine switch. These compounds present a novel platform for the development of potent and selective PTP1B inhibitors.
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 [[Category: Secondary binding site]]
 [[Category: Selectivity]]
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