4CAA Serpin date Aug 14, 1997
title Cleaved Antichymotrypsin T345r
authors C.M.Lukacs, D.W.Christianson
compound source
Molecule: Antichymotrypsin
Chain: A
Synonym: Act
Engineered: Yes
Mutation: Yes
Other_details: Cleaved Antichymotrypsin
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Act
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_plasmid: Pzms
Expression_system_gene: Act

Molecule: Antichymotrypsin
Chain: B
Synonym: Act
Engineered: Yes
Mutation: Yes
Other_details: Cleaved Antichymotrypsin

Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Act
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_plasmid: Pzms
Expression_system_gene: Act
symmetry Space Group: P 21 21 21
R_factor 0.199 R_Free 0.284
crystal
cell
length a length b length c angle alpha angle beta angle gamma
72.830 83.510 82.860 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.90 Å
note 4CAA supersedes 1CT3
related structures by homologous chain: 2ACH
Gene
Ontology
ChainFunctionProcessComponent
A, B


Primary referenceEngineering an anion-binding cavity in antichymotrypsin modulates the "spring-loaded" serpin-protease interaction., Lukacs CM, Rubin H, Christianson DW, Biochemistry. 1998 Mar 10;37(10):3297-304. PMID:9521649
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (64 Kb) [Save to disk]
  • Biological Unit Coordinates (4caa.pdb1.gz) 60 Kb
  • CSU: Contacts of Structural Units for 4CAA
  • Likely Quarternary Molecular Structure file(s) for 4CAA
  • Retrieve 4CAA in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 4CAA from S2C, [Save to disk]
  • View 4CAA in 3D
  • Proteopedia, because life has more than 2D.
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  • On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.
  • Visual 3D analysis of 4CAA
  • 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 4CAA, from MSDmotif at EBI
  • Genome occurence of 4CAA's fold from GeneCensus
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d4caa.1, region A:,B [Jmol] [rasmolscript] [script source]
  • Fold representative 4caa 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: [4caa_B] [4caa_A] [4caa]
  • SWISS-PROT database: [P01011]
  • Domain organization of [AACT_HUMAN] by SWISSPFAM
  • Domain found in 4CAA: [SERPIN ] by SMART
  • Other resources with information on 4CAA
  • Community annotation for 4CAA at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
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