1LT7 Transferase date May 20, 2002
title Oxidized Homo Sapiens Betaine-Homocysteine S-Methyltransfera Complex With Four Sm(III) Ions
authors J.C.Evans, D.P.Huddler, J.Jiracek, C.Castro, N.S.Millian, T.A.Gar M.L.Ludwig
compound source
Molecule: Betaine-Homocysteine Methyltransferase
Chain: A, B
Synonym: Betaine-Homocysteine S-Methyltransferase
Ec: 2.1.1.5
Engineered: Yes
Mutation: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Expression_system: Escherichia Coli Bl21(De3)
Expression_system_taxid: 469008
Expression_system_strain: Bl21-De3
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Ptyb4
symmetry Space Group: C 1 2 1
R_factor 0.203 R_Free 0.249
crystal
cell
length a length b length c angle alpha angle beta angle gamma
109.990 90.085 89.085 90.00 122.10 90.00
method X-Ray Diffractionresolution 2.15 Å
ligand CIT, SM enzyme Transferase E.C.2.1.1.5 BRENDA
related structures by homologous chain: 1LT8, 1UMY
Gene
Ontology
ChainFunctionProcessComponent
A, B


Primary referenceBetaine-homocysteine methyltransferase: zinc in a distorted barrel., Evans JC, Huddler DP, Jiracek J, Castro C, Millian NS, Garrow TA, Ludwig ML, Structure (Camb) 2002 Sep;10(9):1159-71. PMID:12220488
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (111 Kb) [Save to disk]
  • Biological Unit Coordinates (1lt7.pdb1.gz) 206 Kb
  • Biological Unit Coordinates (1lt7.pdb2.gz) 104 Kb
  • LPC: Ligand-Protein Contacts for 1LT7
  • CSU: Contacts of Structural Units for 1LT7
  • Likely Quarternary Molecular Structure file(s) for 1LT7
  • Structure Factors (593 Kb)
  • Retrieve 1LT7 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1LT7 from S2C, [Save to disk]
  • Re-refined 1lt7 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1LT7 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 1LT7
  • 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 1LT7, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1lt7a_, region A [Jmol] [rasmolscript] [script source]
        - Domain d1lt7b_, region B [Jmol] [rasmolscript] [script source]
  • Fold representative 1lt7 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: [1lt7] [1lt7_A] [1lt7_B]
  • SWISS-PROT database: [Q93088]
  • Domain organization of [BHMT1_HUMAN] by SWISSPFAM
  • Other resources with information on 1LT7
  • Community annotation for 1LT7 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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