1CHO Hydrolase Hydrolase Inhibitor date Mar 04, 1988
title Crystal And Molecular Structures Of The Complex Of Alpha-Ch With Its Inhibitor Turkey Ovomucoid Third Domain At 1.8 Ang Resolution
authors M.Fujinaga, A.R.Sielecki, R.J.Read, W.Ardelt, M.Laskowskijunior, M.N.G.James
compound source
Molecule: Alpha-Chymotrypsin A
Chain: E
Organism_scientific: Bos Taurus
Organism_common: Cattle
Organism_taxid: 9913

Molecule: Alpha-Chymotrypsin A
Chain: F

Organism_scientific: Bos Taurus
Organism_common: Cattle
Organism_taxid: 9913

Molecule: Alpha-Chymotrypsin A
Chain: G

Organism_scientific: Bos Taurus
Organism_common: Cattle
Organism_taxid: 9913

Molecule: Turkey Ovomucoid Third Domain (Omtky3)
Chain: I

Organism_scientific: Meleagris Gallopavo
Organism_common: Turkey
Organism_taxid: 9103
symmetry Space Group: P 1 21 1
length a length b length c angle alpha angle beta angle gamma
44.920 54.520 57.180 90.00 103.90 90.00
method X-Ray Diffractionresolution 1.80 Å
enzyme Hydrolase E.C. BRENDA
related structures by homologous chain: 1CT0, 1P2M, 1PPF, 2GCT



Primary referenceCrystal and molecular structures of the complex of alpha-chymotrypsin with its inhibitor turkey ovomucoid third domain at 1.8 A resolution., Fujinaga M, Sielecki AR, Read RJ, Ardelt W, Laskowski M Jr, James MN, J Mol Biol 1987 May 20;195(2):397-418. PMID:3477645
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (52 Kb) [Save to disk]
  • Biological Unit Coordinates (1cho.pdb1.gz) 49 Kb
  • CSU: Contacts of Structural Units for 1CHO
  • Likely Quarternary Molecular Structure file(s) for 1CHO
  • Retrieve 1CHO in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1CHO from S2C, [Save to disk]
  • View 1CHO 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 1CHO
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 1CHO, from MSDmotif at EBI
  • Genome occurence of 1CHO's fold from GeneCensus
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1choe_, region E [Jmol] [rasmolscript] [script source]
        - Domain d1choi_, region I [Jmol] [rasmolscript] [script source]
  • Fold representative 1cho 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: [1cho_I] [1cho] [1cho_G] [1cho_E] [1cho_F]
  • SWISS-PROT database: [P00766] [P68390]
  • Domain organization of [CTRA_BOVIN] [IOVO_MELGA] by SWISSPFAM
  • Domains found in 1CHO: [KAZAL] [Tryp_SPc ] by SMART
  • Other resources with information on 1CHO
  • Community annotation for 1CHO 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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