1QMN Hydrolase Inhibitor date Oct 04, 1999
title Alpha1-Antichymotrypsin Serpin In The Delta Conformation (Pa Insertion)
authors B.Gooptu, B.Hazes, D.A.Lomas
compound source
Molecule: Alpha-1-Antichymotrypsin
Chain: A
Synonym: Aact, Act, Cell Growth-Inhibiting Gene 2425 Prote A3, Alpha-1-Antichymotrypsin His-Pro-Less;
Engineered: Yes
Mutation: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Tissue: Blood Plasma
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: N4830-1
Expression_system_cellular_location: Cytoplasm
Expression_system_plasmid: Pzm-S
Other_details: The Mutation Is A Naturally Occurring Varian
symmetry Space Group: P 1 21 1
R_factor 0.197 R_Free 0.243
length a length b length c angle alpha angle beta angle gamma
41.723 122.094 41.724 90.00 101.03 90.00
method X-Ray Diffractionresolution 2.27 Å
related structures by homologous chain: 1AS4, 3CAA

Primary referenceInactive conformation of the serpin alpha(1)-antichymotrypsin indicates two-stage insertion of the reactive loop: implications for inhibitory function and conformational disease., Gooptu B, Hazes B, Chang WS, Dafforn TR, Carrell RW, Read RJ, Lomas DA, Proc Natl Acad Sci U S A 2000 Jan 4;97(1):67-72. PMID:10618372
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (64 Kb) [Save to disk]
  • Biological Unit Coordinates (1qmn.pdb1.gz) 59 Kb
  • CSU: Contacts of Structural Units for 1QMN
  • Likely Quarternary Molecular Structure file(s) for 1QMN
  • Retrieve 1QMN in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1QMN from S2C, [Save to disk]
  • View 1QMN 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 1QMN
  • 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 1QMN, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1qmna_, region A [Jmol] [rasmolscript] [script source]
  • Fold representative 1qmn 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: [1qmn_A] [1qmn]
  • SWISS-PROT database: [P01011]
  • Domain organization of [AACT_HUMAN] by SWISSPFAM
  • Domain found in 1QMN: [SERPIN ] by SMART
  • Other resources with information on 1QMN
  • Community annotation for 1QMN 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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