4M3P Transferase date Aug 06, 2013
title Betaine-Homocysteine S-Methyltransferase From Homo Sapiens C With Homocysteine
authors M.Koutmos, K.Yamada, J.Mladkova, J.Paterova, C.E.Diamond, K.Tryon P.Jungwirth, T.A.Garrow, J.Jiracek
compound source
Molecule: Betaine--Homocysteine S-Methyltransferase 1
Chain: A, B, C, D
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Bhmt
Expression_system: Escherichia Coli
Expression_system_taxid: 469008
Expression_system_strain: Bl21(De3)
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Ptyb4
symmetry Space Group: P 1 21 1
R_factor 0.180 R_Free 0.219
length a length b length c angle alpha angle beta angle gamma
86.097 102.617 96.228 90.00 101.76 90.00
method X-Ray Diffractionresolution 1.90 Å
ligand HCS, K, SRT, ZN enzyme Transferase E.C. BRENDA
A, D, C, B

Primary referenceSpecific potassium ion interactions facilitate homocysteine binding to betaine-homocysteine S-methyltransferase., Mladkova J, Hladilkova J, Diamond CE, Tryon K, Yamada K, Garrow TA, Jungwirth P, Koutmos M, Jiracek J, Proteins. 2014 Jun 4. doi: 10.1002/prot.24619. PMID:24895213
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (458 Kb) [Save to disk]
  • Biological Unit Coordinates (4m3p.pdb1.gz) 450 Kb
  • LPC: Ligand-Protein Contacts for 4M3P
  • CSU: Contacts of Structural Units for 4M3P
  • Structure Factors (1161 Kb)
  • Retrieve 4M3P in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 4M3P from S2C, [Save to disk]
  • Re-refined 4m3p structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 4M3P 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 4M3P
  • 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 4M3P, from MSDmotif at EBI
  • Fold representative 4m3p from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [4m3p_B] [4m3p_C] [4m3p] [4m3p_D] [4m3p_A]
  • SWISS-PROT database:
  • Domain organization of by SWISSPFAM
  • Other resources with information on 4M3P
  • Community annotation for 4M3P at PDBWiki (http://pdbwiki.org)

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