1KEQ Lyase date Nov 16, 2001
title Crystal Structure Of F65ay131c Carbonic Anhydrase V, Covale Modified With 4-Chloromethylimidazole
authors K.M.Jude, S.K.Wright, C.Tu, D.N.Silverman, R.E.Viola, D.W.Christi
compound source
Molecule: F65ay131c-Mi Carbonic Anhydrase V
Chain: A, B
Fragment: Carbonic Anhydrase Vc
Ec: 4.2.1.1
Engineered: Yes
Mutation: Yes
Organism_scientific: Mus Musculus
Organism_common: House Mouse
Organism_taxid: 10090
Gene: Mca5c
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Bl21 (De3) Plyss
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pet31 T7
symmetry Space Group: C 1 2 1
R_factor 0.185 R_Free 0.217
crystal
cell
length a length b length c angle alpha angle beta angle gamma
99.299 66.703 92.563 90.00 105.70 90.00
method X-Ray Diffractionresolution 1.88 Å
ligand 4MZ, ACY, K, ZN enzyme Lyase E.C.4.2.1.1 BRENDA
related structures by homologous chain: 1DMX
Gene
Ontology
ChainFunctionProcessComponent
A, B


Primary referenceCrystal structure of F65A/Y131C-methylimidazole carbonic anhydrase V reveals architectural features of an engineered proton shuttle., Jude KM, Wright SK, Tu C, Silverman DN, Viola RE, Christianson DW, Biochemistry 2002 Feb 26;41(8):2485-91. PMID:11851394
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (92 Kb) [Save to disk]
  • Biological Unit Coordinates (1keq.pdb1.gz) 45 Kb
  • Biological Unit Coordinates (1keq.pdb2.gz) 44 Kb
  • LPC: Ligand-Protein Contacts for 1KEQ
  • CSU: Contacts of Structural Units for 1KEQ
  • Likely Quarternary Molecular Structure file(s) for 1KEQ
  • Structure Factors (505 Kb)
  • Retrieve 1KEQ in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1KEQ from S2C, [Save to disk]
  • Re-refined 1keq structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1KEQ 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 1KEQ
  • 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 1KEQ, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1keqa_, region A [Jmol] [rasmolscript] [script source]
        - Domain d1keqb_, region B [Jmol] [rasmolscript] [script source]
  • Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH
  • Summaries and structural analyses of PDB data files from PDBSum
  • Identification of Protein Pockets & Cavities at CASTp
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1keq_B] [1keq_A] [1keq]
  • SWISS-PROT database: [P23589]
  • Domain organization of [CAH5A_MOUSE] by SWISSPFAM
  • Domain found in 1KEQ: [Carb_anhydrase ] by SMART
  • Other resources with information on 1KEQ
  • Community annotation for 1KEQ 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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