1CZI Hydrolase Hydrolase Inhibitor date Jan 15, 1997
title Chymosin Complex With The Inhibitor Cp-113972
authors M.R.Groves, V.Dhanaraj, J.E.Pitts, M.Badasso, D.Hoover, P.Nugent, T.L.Blundell
compound source
Molecule: Chymosin
Chain: E
Synonym: Renin
Engineered: Yes
Organism_scientific: Bos Taurus
Organism_common: Cattle
Organism_taxid: 9913
Organ: Stomach
Cell: Fundus
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Other_details: Calf

Molecule: Cp-113972 (Norstatine-S-Methyl Cysteine-Iodo-Phen Proline);
Chain: P
Synonym: Pfizer Inhibitor
Engineered: Yes

Synthetic: Yes
symmetry Space Group: H 3 2
R_factor 0.195 R_Free NULL
length a length b length c angle alpha angle beta angle gamma
132.780 132.780 81.950 90.00 90.00 120.00
method X-Ray Diffractionresolution 2.30 Å
ligand NOR, PHI, SMC enzyme Hydrolase E.C. BRENDA
related structures by homologous chain: 1CMS

Primary referenceA 2.3 A resolution structure of chymosin complexed with a reduced bond inhibitor shows that the active site beta-hairpin flap is rearranged when compared with the native crystal structure., Groves MR, Dhanaraj V, Badasso M, Nugent P, Pitts JE, Hoover DJ, Blundell TL, Protein Eng 1998 Oct;11(10):833-40. PMID:9862200
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (58 Kb) [Save to disk]
  • Biological Unit Coordinates (1czi.pdb1.gz) 52 Kb
  • LPC: Ligand-Protein Contacts for 1CZI
  • CSU: Contacts of Structural Units for 1CZI
  • Likely Quarternary Molecular Structure file(s) for 1CZI
  • Structure Factors (118 Kb)
  • Retrieve 1CZI in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1CZI from S2C, [Save to disk]
  • Re-refined 1czi structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1CZI 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 1CZI
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • 3D motif for 1CZI, from MSDmotif at EBI
  • Genome occurence of 1CZI's fold from GeneCensus
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1czie_, region E [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: [1czi_E] [1czi_P] [1czi]
  • SWISS-PROT database: [P00794]
  • Domain organization of [CHYM_BOVIN] by SWISSPFAM
  • Other resources with information on 1CZI
  • Community annotation for 1CZI 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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