1CAL Lyase(Oxo-Acid) date Sep 17, 1992
title Structural Analysis Of The Zinc Hydroxide-Thr 199-Glu 106 Hy Bonding Network In Human Carbonic Anhydrase II
authors Y.Xue, A.Liljas, B.H.Jonsson, S.Lindskog
compound source
Molecule: Carbonic Anhydrase II
Chain: A
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
symmetry Space Group: P 1 21 1
length a length b length c angle alpha angle beta angle gamma
42.700 41.700 73.000 90.00 104.60 90.00
method X-Ray Diffractionresolution 2.20 Å
ligand ZN enzyme Lyase E.C. BRENDA
related structures by homologous chain: 1BN3, 1OKM

Primary referenceStructural analysis of the zinc hydroxide-Thr-199-Glu-106 hydrogen-bond network in human carbonic anhydrase II., Xue Y, Liljas A, Jonsson BH, Lindskog S, Proteins 1993 Sep;17(1):93-106. PMID:7901850
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (50 Kb) [Save to disk]
  • Biological Unit Coordinates (1cal.pdb1.gz) 47 Kb
  • LPC: Ligand-Protein Contacts for 1CAL
  • CSU: Contacts of Structural Units for 1CAL
  • Likely Quarternary Molecular Structure file(s) for 1CAL
  • Structure Factors (81 Kb)
  • Retrieve 1CAL in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1CAL from S2C, [Save to disk]
  • Re-refined 1cal structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1CAL in 3D
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  • Visual 3D analysis of 1CAL
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  • Structure-derived information
  • Electron Density related parameters from EDS Electron Density Server, at Upsala
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 1CAL, from MSDmotif at EBI
  • Genome occurence of 1CAL's fold from GeneCensus
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1cal__, region [Jmol] [rasmolscript] [script source]
  • Fold representative 1cal 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: [1cal_A] [1cal]
  • SWISS-PROT database: [P00918]
  • Domain organization of [CAH2_HUMAN] by SWISSPFAM
  • Domain found in 1CAL: [Carb_anhydrase ] by SMART
  • Other resources with information on 1CAL
  • Community annotation for 1CAL at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
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