1SG4 Isomerase date Feb 23, 2004
title Crystal Structure Of Human Mitochondrial Delta3-Delta2- Enoyl-Coa Isomerase
authors S.T.Partanen, D.K.Novikov, A.N.Popov, A.M.Mursula, J.K.Hiltunen, R.K.Wierenga
compound source
Molecule: 3,2-Trans-Enoyl-Coa Isomerase, Mitochondrial
Chain: A, B, C
Synonym: Dodecenoyl-Coa Delta-Isomerase
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Dci
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Bl21(De3)Plyss
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pet3a
symmetry Space Group: C 1 2 1
length a length b length c angle alpha angle beta angle gamma
100.984 78.288 113.209 90.00 116.39 90.00
method X-Ray Diffractionresolution 1.30 Å
ligand CO8 enzyme Isomerase E.C. BRENDA
note 1SG4 is a representative structure
related structures by homologous chain: 1XX4
A, C, B

Primary referenceThe 1.3 A crystal structure of human mitochondrial Delta3-Delta2-enoyl-CoA isomerase shows a novel mode of binding for the fatty acyl group., Partanen ST, Novikov DK, Popov AN, Mursula AM, Hiltunen JK, Wierenga RK, J Mol Biol 2004 Sep 24;342(4):1197-208. PMID:15351645
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (260 Kb) [Save to disk]
  • Biological Unit Coordinates (1sg4.pdb1.gz) 255 Kb
  • Biological Unit Coordinates (1sg4.pdb2.gz) 506 Kb
  • LPC: Ligand-Protein Contacts for 1SG4
  • CSU: Contacts of Structural Units for 1SG4
  • Likely Quarternary Molecular Structure file(s) for 1SG4
  • Structure Factors (1497 Kb)
  • Retrieve 1SG4 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1SG4 from S2C, [Save to disk]
  • Re-refined 1sg4 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1SG4 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 1SG4
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Conformational Epitope Prediction for 1SG4 1SG4A 1SG4B 1SG4C from the CEP Server.
  • 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 1SG4, from MSDmotif at EBI
  • Fold representative 1sg4 from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1sg4] [1sg4_B] [1sg4_A] [1sg4_C]
  • SWISS-PROT database: [P42126]
  • Domain organization of [D3D2_HUMAN] by SWISSPFAM
  • Other resources with information on 1SG4
  • Community annotation for 1SG4 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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