2A3K	Signaling Protein	date	Jun 24, 2005
title	Crystal Structure Of The Human Protein Tyrosine Phosphatase, (Heptp, Hematopoietic Protein Tyrosine Phosphatase)
authors	A.Barr, A.P.Turnbull, S.Das, J.Eswaran, J.E.Debreczeni, E.Longman N.Burgess, O.Gileadi, M.Sundstrom, C.Arrowsmith, A.Edwards, F.Vo S.Knapp, Structural Genomics Consortium (Sgc)
compound		source
Molecule: Protein Tyrosine Phosphatase, Non-Receptor Type 7 1; Chain: A Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Ptpn7 Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21 (De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pnic Sgc
symmetry	Space Group: P 21 21 21	R_factor 0.219 R_Free 0.275
crystal cell	length a length b length c angle alpha angle beta angle gamma 39.125 80.968 100.392 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.55 Å
ligand	PO4	enzyme
Gene Ontology	Chain Function Process Component A
Primary reference	The crystal structure of human receptor protein tyrosine phosphatase kappa phosphatase domain 1., Eswaran J, Debreczeni JE, Longman E, Barr AJ, Knapp S, Protein Sci. 2006 Jun;15(6):1500-5. Epub 2006 May 2. PMID:16672235

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (48 Kb) [Save to disk] Biological Unit Coordinates (2a3k.pdb1.gz) 43 Kb LPC: Ligand-Protein Contacts for 2A3K CSU: Contacts of Structural Units for 2A3K Likely Quarternary Molecular Structure file(s) for 2A3K Structure Factors (89 Kb) Retrieve 2A3K in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2A3K from S2C, [Save to disk] Re-refined 2a3k structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2A3K 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 2A3K

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 2A3K, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2a3k] [2a3k_A] SWISS-PROT database: [P35236] Domain organization of [PTN7_HUMAN] by SWISSPFAM Domain found in 2A3K: [PTPc ] by SMART

Other resources with information on 2A3K

Community annotation for 2A3K at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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