1XSA Hydrolase date Oct 18, 2004
title Structure Of The Nudix Enzyme Ap4a Hydrolase From Homo Sapiens (E63a Mutant)
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(De3)
Expression_system_taxid: 469008
Expression_system_strain: Bl21(De3)
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pgex-6-P3
methodSolution NMR
enzyme Hydrolase E.C. BRENDA
related structures by homologous chain: 1XSB

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] (1361 Kb) [Save to disk]
  • CSU: Contacts of Structural Units for 1XSA
  • Original NMR restraints for 1XSA from PDB
  • Experimental data, such as chemical shifts, at BioMagResBank (BMRB)
  • NMR Restraints Grid from BioMagResBank (BMRB)
  • Retrieve 1XSA in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1XSA from S2C, [Save to disk]
  • View 1XSA 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 1XSA
  • 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 1XSA, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1xsaa_, region A [Jmol] [rasmolscript] [script source]
  • Fold representative 1xsa from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1xsa] [1xsa_A]
  • SWISS-PROT database: [P50583]
  • Domain organization of [AP4A_HUMAN] by SWISSPFAM
  • Other resources with information on 1XSA
  • Community annotation for 1XSA 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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