1I6O Lyase date Mar 02, 2001
title Crystal Structure Of E. Coli Beta Carbonic Anhydrase (Ecca)
authors J.D.Cronk, J.A.Endrizzi, M.R.Cronk, J.W.O'Neill, K.Y.J.Zhang
compound source
Molecule: Carbonic Anhydrase
Chain: A, B
Engineered: Yes
Organism_scientific: Escherichia Coli
Organism_taxid: 562
Gene: Yadf
Expression_system: Escherichia Coli Bl21
Expression_system_taxid: 511693
Expression_system_strain: Bl21
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pet3a
symmetry Space Group: P 43 2 2
R_factor 0.212 R_Free 0.243
length a length b length c angle alpha angle beta angle gamma
81.244 81.244 162.137 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.20 Å
ligand MSE, ZN enzyme Lyase E.C. BRENDA
related structures by homologous chain: 1I6P, 1T75
A, B

Primary referenceCrystal structure of E. coli beta-carbonic anhydrase, an enzyme with an unusual pH-dependent activity., Cronk JD, Endrizzi JA, Cronk MR, O'neill JW, Zhang KY, Protein Sci 2001 May;10(5):911-22. PMID:11316870
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (77 Kb) [Save to disk]
  • Biological Unit Coordinates (1i6o.pdb1.gz) 142 Kb
  • LPC: Ligand-Protein Contacts for 1I6O
  • CSU: Contacts of Structural Units for 1I6O
  • Likely Quarternary Molecular Structure file(s) for 1I6O
  • Retrieve 1I6O in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1I6O from S2C, [Save to disk]
  • View 1I6O 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 1I6O
  • 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 1I6O, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1i6oa_, region A [Jmol] [rasmolscript] [script source]
        - Domain d1i6ob_, region B [Jmol] [rasmolscript] [script source]
  • Fold representative 1i6o from FSSP and Dali (Families of Structurally Similar Proteins)
  • 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: [1i6o_A] [1i6o_B] [1i6o]
  • SWISS-PROT database: [P61517]
  • Domain organization of [CAN_ECOLI] by SWISSPFAM
  • Domain found in 1I6O: [Pro_CA ] by SMART
  • Other resources with information on 1I6O
  • Community annotation for 1I6O 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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