3K7W	Signaling Protein Hydrolase	date	Oct 13, 2009
title	Protein Phosphatase 2a Core Complex Bound To Dinophysistoxin
authors	P.D.Jeffrey, J.Huhn, Y.Shi
compound		source
Molecule: Serinethreonine-Protein Phosphatase 2a 65 Kda Re Subunit A Alpha Isoform; Chain: A Synonym: Pp2a, Subunit A, Pr65-Alpha Isoform, Pp2a, Subunit Alpha Isoform, Medium Tumor Antigen-Associated 61 Kda Prote Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Ppp2r1a Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pgex-2t
Molecule: Serinethreonine-Protein Phosphatase 2a Catalytic Alpha Isoform; Chain: C Synonym: Pp2a-Alpha, Replication Protein C, Rp-C Ec: 3.1.3.16 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Ppp2ca Expression_system: Spodoptera Frugiperda Expression_system_taxid: 7108 Expression_system_strain: Hi-5 Expression_system_vector_type: Baculovirus
symmetry	Space Group: I 2 2 2	R_factor 0.222 R_Free 0.263
crystal cell	length a length b length c angle alpha angle beta angle gamma 93.410 197.240 201.650 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.96 Å
ligand	MN, SO4, XT2	enzyme	Hydrolase E.C.3.1.3.16 BRENDA
Gene Ontology	Chain Function Process Component A protein phosphatase regulato... C
Primary reference	A structural basis for the reduced toxicity of dinophysistoxin-2., Huhn J, Jeffrey PD, Larsen K, Rundberget T, Rise F, Cox NR, Arcus V, Shi Y, Miles CO, Chem Res Toxicol. 2009 Nov;22(11):1782-6. PMID:19916524

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (144 Kb) [Save to disk] Biological Unit Coordinates (3k7w.pdb1.gz) 138 Kb LPC: Ligand-Protein Contacts for 3K7W CSU: Contacts of Structural Units for 3K7W Structure Factors (310 Kb) Retrieve 3K7W in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3K7W from S2C, [Save to disk] Re-refined 3k7w structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3K7W 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 3K7W

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 3K7W, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3k7w_C] [3k7w] [3k7w_A] SWISS-PROT database: [P30153] [P67775] Domain organization of [2AAA_HUMAN] [PP2AA_HUMAN] by SWISSPFAM Domain found in 3K7W: [PP2Ac ] by SMART

Other resources with information on 3K7W

Community annotation for 3K7W at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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