2H31 Ligase, Lyase date May 21, 2006
title Crystal Structure Of Human Paics, A Bifunctional Carboxylase Synthetase In Purine Biosynthesis
authors S.X.Li, Y.P.Tong, X.C.Xie, S.G.Li, R.C.Bi
compound source
Molecule: Multifunctional Protein Ade2
Chain: A
Synonym: Phosphoribosylaminoimidazole-Succinocarboxamide Sy Phosphoribosylaminoimidazole Carboxylase;
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Paics, Ade2, Airc, Pais
Expression_system: Escherichia Coli
Expression_system_taxid: 562
symmetry Space Group: P 4 2 2
R_factor 0.241 R_Free 0.287
length a length b length c angle alpha angle beta angle gamma
133.666 133.666 60.618 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.80 Å
ligand CO2, MSE enzyme Ligase E.C. BRENDA

Primary referenceOctameric Structure of the Human Bifunctional Enzyme PAICS in Purine Biosynthesis., Li SX, Tong YP, Xie XC, Wang QH, Zhou HN, Han Y, Zhang ZY, Gao W, Li SG, Zhang XC, Bi RC, J Mol Biol. 2006 Dec 16;. PMID:17224163
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (67 Kb) [Save to disk]
  • Biological Unit Coordinates (2h31.pdb1.gz) 480 Kb
  • LPC: Ligand-Protein Contacts for 2H31
  • CSU: Contacts of Structural Units for 2H31
  • Likely Quarternary Molecular Structure file(s) for 2H31
  • Structure Factors (114 Kb)
  • Retrieve 2H31 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 2H31 from S2C, [Save to disk]
  • Re-refined 2h31 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 2H31 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 2H31
  • 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 2H31, from MSDmotif at EBI
  • Fold representative 2h31 from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [2h31_A] [2h31]
  • SWISS-PROT database: [P22234]
  • Domain organization of [PUR6_HUMAN] by SWISSPFAM
  • Domain found in 2H31: [AIRC ] by SMART
  • Other resources with information on 2H31
  • Community annotation for 2H31 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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