1I57	Hydrolase	date	Feb 26, 2001
title	Crystal Structure Of Apo Human Ptp1b (C215s) Mutant
authors	G.Scapin, S.Patel, V.Patel, B.Kennedy, E.Asante-Appiah
compound		source
Molecule: Phospho-Tyrosine Phosphatase 1b Chain: A Fragment: Catalytic Domain (1-298) Synonym: Ptp-1b, Protein-Tyrosine Phosphatase, Non-Receptor Protein-Tyrosine Phosphatase 1b; Ec: 3.1.3.48 Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Ptn1_human Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3)
symmetry	Space Group: P 31 2 1	R_factor 0.195 R_Free 0.266
crystal cell	length a length b length c angle alpha angle beta angle gamma 87.381 87.381 95.942 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.10 Å
ligand	CL, MG	enzyme	Hydrolase E.C.3.1.3.48 BRENDA
related structures	by homologous chain: 1BZH, 1C87
Gene	PTN1 (H. sapiens)
Gene Ontology	Chain Function Process Component A
Primary reference	The structure of apo protein-tyrosine phosphatase 1B C215S mutant: more than just an S --> O change., Scapin G, Patel S, Patel V, Kennedy B, Asante-Appiah E, Protein Sci 2001 Aug;10(8):1596-605. PMID:11468356

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (57 Kb) [Save to disk] Biological Unit Coordinates (1i57.pdb1.gz) 53 Kb LPC: Ligand-Protein Contacts for 1I57 CSU: Contacts of Structural Units for 1I57 Likely Quarternary Molecular Structure file(s) for 1I57 Structure Factors (136 Kb) Retrieve 1I57 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1I57 from S2C, [Save to disk] Re-refined 1i57 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1I57 in 3D

Proteopedia, because life has more than 2D. On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure. On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.

Visual 3D analysis of 1I57

Ramachandran plot from PDBSum

Structure-derived information

Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1I57, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1i57a_, region A [Jmol] [rasmolscript] [script source] Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH Summaries and structural analyses of PDB data files from PDBSum Identification of Protein Pockets & Cavities at CASTp

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1i57] [1i57_A] SWISS-PROT database: [P18031] Domain organization of [PTN1_HUMAN] by SWISSPFAM Domain found in 1I57: [PTPc ] by SMART

Other resources with information on 1I57

Community annotation for 1I57 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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