1XR2 Transferase date Oct 13, 2004
title Crystal Structure Of Oxidized T. Maritima Cobalamin-Independ Methionine Synthase Complexed With Methyltetrahydrofolate
authors R.Pejchal, M.L.Ludwig
compound source
Molecule: 5-Methyltetrahydropteroyltriglutamate--Homocystei Methyltransferase;
Chain: A, B
Synonym: Methionine Synthase, Vitamin-B12 Independent Isozy Cobalamin-Independent Methionine Synthase;
Ec: 2.1.1.14
Engineered: Yes
Organism_scientific: Thermotoga Maritima
Organism_taxid: 2336
Gene: Mete
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Bl21(De3)Star
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pet151d-Topo
symmetry Space Group: P 21 21 2
R_factor 0.207 R_Free 0.254
crystal
cell
length a length b length c angle alpha angle beta angle gamma
164.058 159.011 64.543 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.35 Å
ligand C2F, MRY, SO4 enzyme Transferase E.C.2.1.1.14 BRENDA
related structures by homologous chain: 1XDJ, 1XPG
Gene
Ontology
ChainFunctionProcessComponent
A, B


Primary referenceCobalamin-Independent Methionine Synthase (MetE): A Face-to-Face Double Barrel That Evolved by Gene Duplication., Pejchal R, Ludwig ML, PLoS Biol 2005 Feb;3(2):e31. Epub 2004 Dec 28. PMID:15630480
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (237 Kb) [Save to disk]
  • Biological Unit Coordinates (1xr2.pdb1.gz) 116 Kb
  • Biological Unit Coordinates (1xr2.pdb2.gz) 119 Kb
  • LPC: Ligand-Protein Contacts for 1XR2
  • CSU: Contacts of Structural Units for 1XR2
  • Likely Quarternary Molecular Structure file(s) for 1XR2
  • Structure Factors (989 Kb)
  • Retrieve 1XR2 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1XR2 from S2C, [Save to disk]
  • Re-refined 1xr2 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1XR2 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 1XR2
  • 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
  • 3D motif for 1XR2, from MSDmotif at EBI
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1xr2] [1xr2_B] [1xr2_A]
  • SWISS-PROT database: [Q9X112]
  • Domain organization of [METE_THEMA] by SWISSPFAM
  • Other resources with information on 1XR2
  • Community annotation for 1XR2 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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