2NXT Lyase date Nov 19, 2006
title Structural And Kinetic Effects Of Hydrophobic Mutations In T Site Of Human Carbonic Anhydrase II
authors S.Z.Fisher, R.Mckenna
compound source
Molecule: Carbonic Anhydrase 2
Chain: A
Synonym: Carbonic Anhydrase II, Carbonate Dehydratase II, C Carbonic Anhydrase C;
Ec: 4.2.1.1
Engineered: Yes
Mutation: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Ca2
Expression_system: Escherichia Coli Bl21
Expression_system_taxid: 511693
Expression_system_strain: Bl21
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pet
symmetry Space Group: P 1 21 1
R_factor
R_Free
crystal
cell
length a length b length c angle alpha angle beta angle gamma
42.326 41.362 72.274 90.00 104.28 90.00
method X-Ray Diffractionresolution 1.15 Å
ligand ZN enzyme Lyase E.C.4.2.1.1 BRENDA
Gene
Ontology
ChainFunctionProcessComponent
A


Primary referenceSpeeding up proton transfer in a fast enzyme: kinetic and crystallographic studies on the effect of hydrophobic amino acid substitutions in the active site of human carbonic anhydrase II., Fisher SZ, Tu C, Bhatt D, Govindasamy L, Agbandje-McKenna M, McKenna R, Silverman DN, Biochemistry. 2007 Mar 27;46(12):3803-13. Epub 2007 Mar 2. PMID:17330962
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (51 Kb) [Save to disk]
  • Biological Unit Coordinates (2nxt.pdb1.gz) 47 Kb
  • LPC: Ligand-Protein Contacts for 2NXT
  • CSU: Contacts of Structural Units for 2NXT
  • Likely Quarternary Molecular Structure file(s) for 2NXT
  • Structure Factors (693 Kb)
  • Retrieve 2NXT in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 2NXT from S2C, [Save to disk]
  • Re-refined 2nxt structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 2NXT 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 2NXT
  • 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 2NXT, from MSDmotif at EBI
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [2nxt_A] [2nxt]
  • SWISS-PROT database: [P00918]
  • Domain organization of [CAH2_HUMAN] by SWISSPFAM
  • Domain found in 2NXT: [Carb_anhydrase ] by SMART
  • Other resources with information on 2NXT
  • Community annotation for 2NXT 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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