3a5j Summary

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Crystal structure of protein-tyrosine phosphatase 1B

A publication describing this structure is not available. The depositing authors are Ito, S.search

This crystal structure was determined using X-ray diffraction at a resolution of 1.7 Å and deposited in 2009.

The experimental data on which the structure is based was also deposited.

The PDB entry contains the structure of Tyrosine-protein phosphatase non-receptor type 1. This molecule has the UniProt identifier P18031 (PTN1_HUMAN)search. The sample contained 327 residues which is < 90% of the natural sequence. Out of 327 residues 282 were observed and are deposited in the PDB.

It also contains one or more heterogenic compounds (e.g., ligands, co-factors, ions, modified amino acids, etc.); see here for a complete list.

The molecule is most likely monomeric.

The following tables show cross-reference information to other databases (to obtain a list of all PDB entries sharing the same property or classification, click on the magnifying glass icon):


Chain Name UniProt Name of source organism % of UniProt sequence present in the sample Residues in the sample molecules % of residues observed
A Tyrosine-protein phosphatase non-receptor type 1 P18031 (2-321) (PTN1_HUMAN)search Homo sapienssearch < 90% 327 86%


This entry contains 1 unique UniProt protein:

UniProt accession Name Organism PDB
P18031 (2 - 321) Tyrosine-protein phosphatase non-receptor type 1 Homo sapiens

Chain Structural classification (CATH) Sequence family (Pfam)
A Protein tyrosine phosphatase superfamilysearch Protein-tyrosine phosphatasesearch

Chain ID Molecular function (GO) Biological process (GO)
A (P18031) protein tyrosine phosphatase activitysearch phosphatase activitysearch dephosphorylationsearch protein dephosphorylationsearch

Chain InterPro annotation
A Protein-tyrosine phosphatase, receptor/non-receptor typesearch Protein-tyrosine/Dual specificity phosphatasesearch Protein-tyrosine phosphatase, non-receptor type-1/2search Protein-tyrosine phosphatase, active sitesearch Protein-tyrosine phosphatase-likesearch