2AB8 Signaling Protein,Transferase date Jul 14, 2005
title Crystal Structure Of T. Gondii Adenosine Kinase Complexed Wi Methylmercaptopurine Riboside And Amp-Pcp
authors Y.Zhang, M.H.El Kouni, S.E.Ealick
compound source
Molecule: Adenosine Kinase
Chain: A
Synonym: Ak; Adenosine 5'-Phosphotransferase
Ec: 2.7.1.20
Engineered: Yes
Mutation: Yes
Organism_scientific: Toxoplasma Gondii
Organism_taxid: 5811
Gene: Ak
Expression_system: Escherichia Coli Bl21(De3)
Expression_system_taxid: 469008
Expression_system_strain: Bl21(De3)
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pet28a
symmetry Space Group: P 21 21 21
R_factor 0.194 R_Free 0.230
crystal
cell
length a length b length c angle alpha angle beta angle gamma
60.489 61.488 91.605 90.00 90.00 90.00
method X-Ray Diffractionresolution 1.75 Å
ligand ACP, CL, MTP, NA enzyme Transferase E.C.2.7.1.20 BRENDA
Gene
Ontology
ChainFunctionProcessComponent
A


Primary referenceSubstrate analogs induce an intermediate conformational change in Toxoplasma gondii adenosine kinase., Zhang Y, El Kouni MH, Ealick SE, Acta Crystallogr D Biol Crystallogr. 2007 Feb;63(Pt 2):126-34. Epub 2007, Jan 16. PMID:17242506
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (65 Kb) [Save to disk]
  • Biological Unit Coordinates (2ab8.pdb1.gz) 60 Kb
  • LPC: Ligand-Protein Contacts for 2AB8
  • CSU: Contacts of Structural Units for 2AB8
  • Likely Quarternary Molecular Structure file(s) for 2AB8
  • Structure Factors (302 Kb)
  • Retrieve 2AB8 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 2AB8 from S2C, [Save to disk]
  • Re-refined 2ab8 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 2AB8 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 2AB8
  • 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 2AB8, from MSDmotif at EBI
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [2ab8_A] [2ab8]
  • SWISS-PROT database: [Q9TVW2]
  • Domain organization of [ADK_TOXGO] by SWISSPFAM
  • Other resources with information on 2AB8
  • Community annotation for 2AB8 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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