1Q4G Oxidoreductase date Aug 03, 2003
title 2.0 Angstrom Crystal Structure Of Ovine Prostaglandin H2 Syn In Complex With Alpha-Methyl-4-Biphenylacetic Acid
authors K.Gupta, B.S.Selinksy, C.J.Kaub, A.K.Katz, P.J.Loll
compound source
Molecule: Prostaglandin Gh Synthase 1
Chain: A, B
Synonym: Cyclooxygenase -1, Cox-1, Prostaglandin-Endoperoxi Synthase 1, Prostaglandin H2 Synthase 1, Pgh Synthase 1, Pg 1;
Organism_scientific: Ovis Aries
Organism_common: Sheep
Organism_taxid: 9940
Organ: Seminal Vesicle
symmetry Space Group: I 2 2 2
R_factor 0.217 R_Free 0.231
length a length b length c angle alpha angle beta angle gamma
98.147 203.859 223.599 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.00 Å
ligand BFL, BMA, BOG, GOL, HEM, MAN, NAG, NDG BindingDB enzyme Oxidoreductase E.C. BRENDA
related structures by homologous chain: 1CVU
A, B
  • peroxidase activity

  • Primary referenceThe 2.0 A resolution crystal structure of prostaglandin H2 synthase-1: structural insights into an unusual peroxidase., Gupta K, Selinsky BS, Kaub CJ, Katz AK, Loll PJ, J Mol Biol 2004 Jan 9;335(2):503-18. PMID:14672659
    Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (213 Kb) [Save to disk]
  • Biological Unit Coordinates (1q4g.pdb1.gz) 204 Kb
  • LPC: Ligand-Protein Contacts for 1Q4G
  • CSU: Contacts of Structural Units for 1Q4G
  • Likely Quarternary Molecular Structure file(s) for 1Q4G
  • Structure Factors (1232 Kb)
  • Retrieve 1Q4G in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1Q4G from S2C, [Save to disk]
  • Re-refined 1q4g structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1Q4G 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 1Q4G
  • 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 1Q4G, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1q4ga2, region A:32-73 [Jmol] [rasmolscript] [script source]
        - Domain d1q4ga1, region A:74-584 [Jmol] [rasmolscript] [script source]
        - Domain d1q4gb2, region B:32-73 [Jmol] [rasmolscript] [script source]
        - Domain d1q4gb1, region B:74-584 [Jmol] [rasmolscript] [script source]
  • Fold representative 1q4g 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: [1q4g_B] [1q4g] [1q4g_A]
  • SWISS-PROT database: [P05979]
  • Domain organization of [PGH1_SHEEP] by SWISSPFAM
  • Domain found in 1Q4G: [EGF ] by SMART
  • Other resources with information on 1Q4G
  • Community annotation for 1Q4G at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
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  • Images from IMB Jena Image Library of Biological Macromolecules.

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