4CHA Hydrolase (Serine Proteinase) date Nov 26, 1984
title Structure Of Alpha-Chymotrypsin Refined At 1.68 Angstroms Resolution
authors H.Tsukada, D.M.Blow
compound source
Molecule: Alpha-Chymotrypsin A
Chain: A, E
Organism_scientific: Bos Taurus
Organism_common: Cattle
Organism_taxid: 9913

Molecule: Alpha-Chymotrypsin A
Chain: B, F

Organism_scientific: Bos Taurus
Organism_common: Cattle
Organism_taxid: 9913

Molecule: Alpha-Chymotrypsin A
Chain: C, G

Organism_scientific: Bos Taurus
Organism_common: Cattle
Organism_taxid: 9913
symmetry Space Group: P 1 21 1
length a length b length c angle alpha angle beta angle gamma
49.230 67.390 65.990 90.00 101.80 90.00
method X-Ray Diffractionresolution 1.68 Å
enzyme Hydrolase E.C. BRENDA
related structures by homologous chain: 1T8O, 3VGC
C, G

F, B

Primary referenceStructure of alpha-chymotrypsin refined at 1.68 A resolution., Tsukada H, Blow DM, J Mol Biol 1985 Aug 20;184(4):703-11. PMID:4046030
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (77 Kb) [Save to disk]
  • Biological Unit Coordinates (4cha.pdb1.gz) 73 Kb
  • CSU: Contacts of Structural Units for 4CHA
  • Likely Quarternary Molecular Structure file(s) for 4CHA
  • Structure Factors (557 Kb)
  • Retrieve 4CHA in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 4CHA from S2C, [Save to disk]
  • Re-refined 4cha structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 4CHA 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 4CHA
  • 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 4CHA, from MSDmotif at EBI
  • Genome occurence of 4CHA's fold from GeneCensus
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d4chaa_, region A [Jmol] [rasmolscript] [script source]
        - Domain d4chab_, region B [Jmol] [rasmolscript] [script source]
  • Fold representative 4cha 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: [4cha_B] [4cha_E] [4cha] [4cha_F] [4cha_A] [4cha_G] [4cha_C]
  • SWISS-PROT database: [P00766]
  • Domain organization of [CTRA_BOVIN] by SWISSPFAM
  • Domain found in 4CHA: [Tryp_SPc ] by SMART
  • Other resources with information on 4CHA
  • Community annotation for 4CHA 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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