ISDA

Deposition Date 2003-05-29

Release Date 2003-07-29

Last Version Date 2023-08-16

Entry Detail

PDB ID:

1PH0

Keywords:

HYDROLASE

Title:

Non-carboxylic Acid-Containing Inhibitor of PTP1B Targeting the Second Phosphotyrosine Site

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.20 Å

R-Value Free:

0.22

R-Value Work:

0.19

R-Value Observed:

0.21

Space Group:

P 31 2 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Protein-tyrosine phosphatase, non-receptor type 1
Gene (Uniprot):PTPN1
Chain IDs:A
Chain Length:321
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P18031 Pfam ID:PF00102 EC:3.1.3.48

Ligand Molecules

418

Primary Citation

Selective Protein Tyrosine Phosphatase 1B Inhibitors: Targeting the Second Phosphotyrosine Binding Site with Non-Carboxylic Acid-Containing Ligands.

Liu, G, Xin, Z, Liang, H, Abad-Zapatero, C, Hajduk, P.J, Janowick, D.A, Szczepankiewicz, B.G, Pei, Z, Hutchins, C.W, Ballaron, S.J, Stashko, M.A, Lubben, T.H, Berg, C.E, Rondinone, C.M, Trevillyan, J.M, Jirousek, M.R.Show

J.Med.Chem. 46 3437 3440 (2003)

PMID: 12877578 DOI: 10.1021/jm034088d

Abstact

Protein tyrosine phosphatase (PTPase) 1B (PTP1B) has been implicated as a key negative regulator of both insulin and leptin signaling cascades. We identified several salicylic acid-based ligands for the second phosphotyrosine binding site of PTP1B using a NMR-based screening. Structure-based linking with a catalytic site-directed oxalylarylaminobenzoic acid-based pharmacophore led to the identification of a novel series of potent PTP1B inhibitors exhibiting 6-fold selectivity over the highly homologous T-cell PTPase (TCPTP) and high selectivity over other phosphatases.

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