1CA0 Complex (Serine Protease Inhibitor) date Jan 23, 1997
title Bovine Chymotrypsin Complexed To Appi
authors A.J.Scheidig, A.A.Kossiakoff
compound source
Molecule: Bovine Chymotrypsin
Chain: A, F
Ec: 3.4.21.1
Organism_scientific: Bos Taurus
Organism_common: Cattle
Organism_taxid: 9913

Molecule: Bovine Chymotrypsin
Chain: B, G
Ec: 3.4.21.1
Engineered: Yes

Organism_scientific: Bos Taurus
Organism_common: Cattle
Organism_taxid: 9913
Organ: Pancreatic
Gene: A4
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: 27c7
Expression_system_plasmid: Pa4g32r
Expression_system_gene: A4

Molecule: Bovine Chymotrypsin
Chain: C, H
Ec: 3.4.21.1
Engineered: Yes

Organism_scientific: Bos Taurus
Organism_common: Cattle
Organism_taxid: 9913
Organ: Pancreatic
Gene: A4
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: 27c7
Expression_system_plasmid: Pa4g32r
Expression_system_gene: A4

Molecule: Protease Inhibitor Domain Of Alzheimer'S Amyloid Beta-Protein Precursor;
Chain: D, I
Synonym: Appi
Engineered: Yes

Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Organ: Pancreatic
Gene: A4
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: 27c7
Expression_system_plasmid: Pa4g32r
Expression_system_gene: A4
symmetry Space Group: P 21 21 2
R_factor 0.215 R_Free 0.323
crystal
cell
length a length b length c angle alpha angle beta angle gamma
70.522 181.488 46.328 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.10 Å
ligand
enzyme Hydrolase E.C.3.4.21.1 BRENDA
related structures by homologous chain: 1BRC, 1DLK, 1TAW, 4VGC
Gene
Ontology
ChainFunctionProcessComponent
D, I


G, B


H, C


Primary referenceCrystal structures of bovine chymotrypsin and trypsin complexed to the inhibitor domain of Alzheimer's amyloid beta-protein precursor (APPI) and basic pancreatic trypsin inhibitor (BPTI): engineering of inhibitors with altered specificities., Scheidig AJ, Hynes TR, Pelletier LA, Wells JA, Kossiakoff AA, Protein Sci 1997 Sep;6(9):1806-24. PMID:9300481
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (98 Kb) [Save to disk]
  • Biological Unit Coordinates (1ca0.pdb1.gz) 49 Kb
  • Biological Unit Coordinates (1ca0.pdb2.gz) 48 Kb
  • CSU: Contacts of Structural Units for 1CA0
  • Likely Quarternary Molecular Structure file(s) for 1CA0
  • Structure Factors (278 Kb)
  • Retrieve 1CA0 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1CA0 from S2C, [Save to disk]
  • Re-refined 1ca0 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1CA0 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 1CA0
  • 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 1CA0, from MSDmotif at EBI
  • Genome occurence of 1CA0's fold from GeneCensus
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1ca0.1, region A:,B:,C [Jmol] [rasmolscript] [script source]
        - Domain d1ca0d_, region D [Jmol] [rasmolscript] [script source]
        - Domain d1ca0.2, region F:,G:,H [Jmol] [rasmolscript] [script source]
        - Domain d1ca0i_, region I [Jmol] [rasmolscript] [script source]
  • Fold representative 1ca0 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: [1ca0_B] [1ca0_G] [1ca0_C] [1ca0_A] [1ca0_H] [1ca0_F] [1ca0] [1ca0_D] [1ca0_I]
  • SWISS-PROT database: [P05067] [P00766]
  • Belongs to the amyloid β-protein peptide (aβpp) family according to TCDB.
  • Domain organization of [A4_HUMAN] [CTRA_BOVIN] by SWISSPFAM
  • Domains found in 1CA0: [KU] [Tryp_SPc ] by SMART
  • Other resources with information on 1CA0
  • Community annotation for 1CA0 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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