1K2I Hydrolase date Sep 27, 2001
title Crystal Structure Of Gamma-Chymotrypsin In Complex With 7- Hydroxycoumarin
authors U.Ghani, K.K.S.Ng, Atta-Ur-Rahman, M.I.Choudhary, N.Ullah, M.N.G.
compound source
Molecule: Chymotrypsinogen A
Chain: 1
Organism_scientific: Bos Taurus
Organism_common: Cattle
Organism_taxid: 9913
symmetry Space Group: P 42 21 2
R_factor 0.180 R_Free 0.200
length a length b length c angle alpha angle beta angle gamma
69.852 69.852 97.380 90.00 90.00 90.00
method X-Ray Diffractionresolution 1.80 Å
ligand SN1, SO4 enzyme Hydrolase E.C. BRENDA
related structures by homologous chain: 1AFQ, 2CGA

Primary referenceCrystal structure of gamma-chymotrypsin in complex with 7-hydroxycoumarin., Ghani U, Ng KK, Atta-ur-Rahman, Choudhary MI, Ullah N, James MN, J Mol Biol 2001 Nov 30;314(3):519-25. PMID:11846564
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (43 Kb) [Save to disk]
  • Biological Unit Coordinates (1k2i.pdb1.gz) 39 Kb
  • Biological Unit Coordinates (1k2i.pdb2.gz) 76 Kb
  • LPC: Ligand-Protein Contacts for 1K2I
  • CSU: Contacts of Structural Units for 1K2I
  • Likely Quarternary Molecular Structure file(s) for 1K2I
  • Structure Factors (141 Kb)
  • Retrieve 1K2I in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1K2I from S2C, [Save to disk]
  • Re-refined 1k2i structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1K2I 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 1K2I
  • Cartoon representation from PDB Cartoon
  • 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
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 1K2I, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1k2i1_, region 1 [Jmol] [rasmolscript] [script source]
  • Fold representative 1k2i 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: [1k2i] [1k2i_1]
  • SWISS-PROT database: [P00766]
  • Domain organization of [CTRA_BOVIN] by SWISSPFAM
  • Domain found in 1K2I: [Tryp_SPc ] by SMART
  • Other resources with information on 1K2I
  • Community annotation for 1K2I 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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