1SGR Complex (Serine Protease Inhibitor) date May 26, 1995
title Leu 18 Variant Of Turkey Ovomucoid Inhibitor Third Domain Co With Streptomyces Griseus Proteinase B
authors K.Huang, M.N.G.James
compound source
Molecule: Streptomyces Griseus Proteinase B
Chain: E
Ec: 3.4.21.81
Engineered: Yes
Organism_scientific: Streptomyces Griseus
Organism_taxid: 1911
Strain: K1
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_plasmid: Pezz318.Tky

Molecule: Turkey Ovomucoid Inhibitor
Chain: I
Synonym: Leu18-Omtky3
Engineered: Yes
Mutation: Yes

Organism_scientific: Meleagris Gallopavo
Organism_common: Turkey
Organism_taxid: 9103
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_plasmid: Pezz318.Tky
symmetry Space Group: P 1 21 1
R_factor
R_Free NULL
crystal
cell
length a length b length c angle alpha angle beta angle gamma
45.530 54.660 45.590 90.00 119.19 90.00
method X-Ray Diffractionresolution 1.80 Å
ligand PO4 enzyme Hydrolase E.C.3.4.21.81 BRENDA
related structures by homologous chain: 2SGQ, 3SGB
Gene
Ontology
ChainFunctionProcessComponent
E


I


Primary referenceWater molecules participate in proteinase-inhibitor interactions: crystal structures of Leu18, Ala18, and Gly18 variants of turkey ovomucoid inhibitor third domain complexed with Streptomyces griseus proteinase B., Huang K, Lu W, Anderson S, Laskowski M Jr, James MN, Protein Sci 1995 Oct;4(10):1985-97. PMID:8535235
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (42 Kb) [Save to disk]
  • Biological Unit Coordinates (1sgr.pdb1.gz) 38 Kb
  • LPC: Ligand-Protein Contacts for 1SGR
  • CSU: Contacts of Structural Units for 1SGR
  • Likely Quarternary Molecular Structure file(s) for 1SGR
  • Retrieve 1SGR in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1SGR from S2C, [Save to disk]
  • View 1SGR 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 1SGR
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • 3D motif for 1SGR, from MSDmotif at EBI
  • Genome occurence of 1SGR's fold from GeneCensus
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1sgre_, region E [Jmol] [rasmolscript] [script source]
        - Domain d1sgri_, region I [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: [1sgr_I] [1sgr] [1sgr_E]
  • SWISS-PROT database: [P68390] [P00777]
  • Domain organization of [IOVO_MELGA] [PRTB_STRGR] by SWISSPFAM
  • Domains found in 1SGR: [KAZAL] [Tryp_SPc ] by SMART
  • Other resources with information on 1SGR
  • Community annotation for 1SGR at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

  • You may enter another PDB ID code
    Go [Back], to the [PDB Lite page], to the [OCA Search page] or to the [PDB Home page]
    OCA© by Jaime Prilusky, 1996-2014,2022
    Bioinformatics Unit
    Weizmann Institute of Science