2H4N Lyase date May 29, 1997
title H94n Carbonic Anhydrase II Complexed With Acetazolamide
authors C.A.Lesburg, D.W.Christianson
compound source
Molecule: Carbonic Anhydrase II
Chain: A
Synonym: Caii, Carbonic Dehydratase
Ec: 4.2.1.1
Engineered: Yes
Mutation: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Cell_line: Bl21
Gene: Caii
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Bl21 (De3) Pcam
Expression_system_plasmid: Bl21
Expression_system_gene: Caii
Other_details: This Caii Variant Was Produced Using Oligonu Directed Mutagenesis Of The Cloned Human Caii Gene In Bl21 Pcam
symmetry Space Group: P 1 21 1
R_factor 0.177 R_Free 0.219
crystal
cell
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 1.90 Å
ligand AZM, ZN BindingDB enzyme Lyase E.C.4.2.1.1 BRENDA
related structures by homologous chain: 1RAZ, 2CA2
Gene
Ontology
ChainFunctionProcessComponent
A


Primary referenceHistidine --> carboxamide ligand substitutions in the zinc binding site of carbonic anhydrase II alter metal coordination geometry but retain catalytic activity., Lesburg CA, Huang C, Christianson DW, Fierke CA, Biochemistry 1997 Dec 16;36(50):15780-91. PMID:9398308
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (46 Kb) [Save to disk]
  • Biological Unit Coordinates (2h4n.pdb1.gz) 42 Kb
  • LPC: Ligand-Protein Contacts for 2H4N
  • CSU: Contacts of Structural Units for 2H4N
  • Likely Quarternary Molecular Structure file(s) for 2H4N
  • Retrieve 2H4N in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 2H4N from S2C, [Save to disk]
  • View 2H4N 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 2H4N
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • 3D motif for 2H4N, from MSDmotif at EBI
  • Genome occurence of 2H4N's fold from GeneCensus
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d2h4n__, region [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: [2h4n] [2h4n_A]
  • SWISS-PROT database: [P00918]
  • Domain organization of [CAH2_HUMAN] by SWISSPFAM
  • Domain found in 2H4N: [Carb_anhydrase ] by SMART
  • Other resources with information on 2H4N
  • Community annotation for 2H4N 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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