1BMT	Methyltransferase	date	Sep 02, 1994
title	How A Protein Binds B12: A 3.O Angstrom X-Ray Structure Of T Binding Domains Of Methionine Synthase
authors	C.L.Drennan, S.Huang, J.T.Drummond, R.G.Matthews, M.L.Ludwig
compound		source
Molecule: Methionine Synthase Chain: A, B Ec: 2.1.1.13 Engineered: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: P 21 21 21	R_factor 0.170 R_Free NULL
crystal cell	length a length b length c angle alpha angle beta angle gamma 96.700 55.300 103.800 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	3.00 Å
ligand	COB	enzyme	Transferase E.C.2.1.1.13 BRENDA
related structures	by homologous chain: 1K7Y
Gene Ontology	Chain Function Process Component A, B
Primary reference	How a protein binds B12: A 3.0 A X-ray structure of B12-binding domains of methionine synthase., Drennan CL, Huang S, Drummond JT, Matthews RG, Lidwig ML, Science 1994 Dec 9;266(5191):1669-74. PMID:7992050

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (87 Kb) [Save to disk] Biological Unit Coordinates (1bmt.pdb1.gz) 80 Kb LPC: Ligand-Protein Contacts for 1BMT CSU: Contacts of Structural Units for 1BMT Likely Quarternary Molecular Structure file(s) for 1BMT Retrieve 1BMT in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1BMT from S2C, [Save to disk]

View 1BMT 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 1BMT

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1BMT, from MSDmotif at EBI Genome occurence of 1BMT's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1bmta1, region A:651-740 [Jmol] [rasmolscript] [script source]     - Domain d1bmta2, region A:741-896 [Jmol] [rasmolscript] [script source]     - Domain d1bmtb1, region B:651-740 [Jmol] [rasmolscript] [script source]     - Domain d1bmtb2, region B:741-896 [Jmol] [rasmolscript] [script source] 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: [1bmt_B] [1bmt_A] [1bmt] SWISS-PROT database: [P13009] Domain organization of [METH_ECOLI] by SWISSPFAM Domain found in 1BMT: [B12-binding_2 ] by SMART

Other resources with information on 1BMT

Community annotation for 1BMT at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

Movements, Movies and Images

Domain movements in 1BMT from the Database of Macromolecular Movements. Images from IMB Jena Image Library of Biological Macromolecules.

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