1XSB Hydrolase date Oct 18, 2004
title Structure Of The Nudix Enzyme Ap4a Hydrolase From Homo Sapiens (E63a Mutant) In Complex With Atp. No Atp Restraints Included
authors J.D.Swarbrick, S.Buyya, D.Gunawardana, K.R.Gayler, A.G.Mclennan, P.R.Gooley
compound source
Molecule: Bis(5'-Nucleosyl)-Tetraphosphatase
Chain: A
Synonym: Diadenosine 5',5'''-P1,P4-Tetraphosphate Asymmetrical Hydrolase, Diadenosine Tetraphosphatase, Ap4a Hydrolase, Ap4aase;
Engineered: Yes
Mutation: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Expression_system: Escherichia Coli Bl21
Expression_system_taxid: 511693
Expression_system_strain: Bl21
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pgex-6-P3
methodSolution NMR
enzyme Hydrolase E.C. BRENDA
related structures by homologous chain: 1XSA, 1XSC

Primary referenceStructure and substrate-binding mechanism of human Ap4A hydrolase., Swarbrick JD, Buyya S, Gunawardana D, Gayler KR, McLennan AG, Gooley PR, J Biol Chem 2005 Mar 4;280(9):8471-81. Epub 2004 Dec 13. PMID:15596429
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (1602 Kb) [Save to disk]
  • CSU: Contacts of Structural Units for 1XSB
  • Original NMR restraints for 1XSB from PDB
  • Experimental data, such as chemical shifts, at BioMagResBank (BMRB)
  • NMR Restraints Grid from BioMagResBank (BMRB)
  • Retrieve 1XSB in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1XSB from S2C, [Save to disk]
  • View 1XSB 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 1XSB
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 1XSB, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1xsba_, region A [Jmol] [rasmolscript] [script source]
  • Fold representative 1xsb from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1xsb_A] [1xsb]
  • SWISS-PROT database: [P50583]
  • Domain organization of [AP4A_HUMAN] by SWISSPFAM
  • Other resources with information on 1XSB
  • Community annotation for 1XSB at PDBWiki (http://pdbwiki.org)
  • NMR Ensemble (OLDERADO: core, domain and representative structure database)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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