2NPP	Hydrolase Hydrolase Inhibitor	date	Oct 28, 2006
title	Structure Of The Protein Phosphatase 2a Holoenzyme
authors	Y.Xu, Y.Chen, Y.Xing, Y.Chao, Y.Shi
compound		source
Molecule: Protein Phosphatase 2, Regulatory Subunit A (Pr 6 Isoform; Chain: A, D Fragment: Scaffolding Subunit Synonym: Protein Phosphatase 2a Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Ppp2r1a Expression_system: Escherichia Coli Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pgex-2t
Molecule: Serinethreonine-Protein Phosphatase 2a 56 Kda Re Subunit Gamma Isoform; Chain: B, E Synonym: Pp2a, B Subunit, B' Gamma Isoform; Pp2a, B Subunit Gamma Isoform; Pp2a, B Subunit, Pr61 Gamma Isoform; Pp2a, B R5 Gamma Isoform; Ny-Ren-29 Antigen; Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Ppp2r5c, Kiaa0044 Expression_system: Escherichia Coli Expression_system_taxid: 469008 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, F Fragment: Catalytic Subunit Synonym: Serinethreonine Protein Phosphatase; 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_common: Fall Armyworm Expression_system_taxid: 7108 Expression_system_strain: Hi-5 Expression_system_vector_type: Baculovirus
Molecule: Microcystin Lr Chain: X, Y Engineered: Yes		Synthetic: Yes Organism_scientific: Cyanobacteria Organism_taxid: 1117
symmetry	Space Group: P 21 21 21	R_factor 0.255 R_Free 0.299
crystal cell	length a length b length c angle alpha angle beta angle gamma 109.260 159.050 269.170 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	3.30 Å
ligand	1ZN, ACB, DAL, DAM, FGA, MN	enzyme	Hydrolase E.C.3.1.3.16 BRENDA
Gene Ontology	Chain Function Process Component A, D protein phosphatase regulato... E, B F, C
Primary reference	Structure of the protein phosphatase 2A holoenzyme., Xu Y, Xing Y, Chen Y, Chao Y, Lin Z, Fan E, Yu JW, Strack S, Jeffrey PD, Shi Y, Cell. 2006 Dec 15;127(6):1239-51. PMID:17174897

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (416 Kb) [Save to disk] Biological Unit Coordinates (2npp.pdb1.gz) 207 Kb Biological Unit Coordinates (2npp.pdb2.gz) 207 Kb LPC: Ligand-Protein Contacts for 2NPP CSU: Contacts of Structural Units for 2NPP Likely Quarternary Molecular Structure file(s) for 2NPP Structure Factors (543 Kb) Retrieve 2NPP in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2NPP from S2C, [Save to disk] Re-refined 2npp structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2NPP 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 2NPP

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 2NPP, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2npp_F] [2npp_X] [2npp_D] [2npp_Y] [2npp_E] [2npp_A] [2npp_C] [2npp] [2npp_B] SWISS-PROT database: [Q13362] [P30153] [P67775] Domain organization of [2A5G_HUMAN] [2AAA_HUMAN] [PP2AA_HUMAN] by SWISSPFAM Domain found in 2NPP: [PP2Ac ] by SMART

Other resources with information on 2NPP

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

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