2DDK Hydrolase date Jan 30, 2006
title Crystal Structure Of Human Myo-Inositol Monophosphatase 2 (Impa2) (Orthorhombic Form)
authors R.Arai, K.Ito, T.Kamo-Uchikubo, Y.Bessho, H.Ohba, T.Ohnishi, T.Yoshikawa, M.Shirouzu, S.Yokoyama, Riken Structural Genomicsproteomics Initiative (Rsgi)
compound source
Molecule: Inositol Monophosphatase 2
Chain: A, B
Synonym: Impase 2, Imp 2, Inositol-1(Or 4)-Monophosphatase 2, Myo-Inositol Monophosphatase A2, Impa2;
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Impa2, Imp.18p
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Bl21(De3)Plyss
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pet44a
symmetry Space Group: P 21 21 21
R_factor 0.260 R_Free 0.301
length a length b length c angle alpha angle beta angle gamma
65.457 95.639 107.239 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.70 Å
enzyme Hydrolase E.C. BRENDA
A, B

Primary referenceCrystal structure of human myo-inositol monophosphatase 2, the product of the putative susceptibility gene for bipolar disorder, schizophrenia, and febrile seizures., Arai R, Ito K, Ohnishi T, Ohba H, Akasaka R, Bessho Y, Hanawa-Suetsugu K, Yoshikawa T, Shirouzu M, Yokoyama S, Proteins. 2007 May 15;67(3):732-42. PMID:17340635
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (85 Kb) [Save to disk]
  • Biological Unit Coordinates (2ddk.pdb1.gz) 80 Kb
  • CSU: Contacts of Structural Units for 2DDK
  • Likely Quarternary Molecular Structure file(s) for 2DDK
  • Structure Factors (270 Kb)
  • Retrieve 2DDK in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 2DDK from S2C, [Save to disk]
  • Re-refined 2ddk structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 2DDK 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 2DDK
  • Cartoon representation from PDB Cartoon
  • 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
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 2DDK, from MSDmotif at EBI
  • Fold representative 2ddk from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [2ddk_A] [2ddk_B] [2ddk]
  • SWISS-PROT database: [O14732]
  • Domain organization of [IMPA2_HUMAN] by SWISSPFAM
  • Other resources with information on 2DDK
  • Community annotation for 2DDK at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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