1B5T	Oxidoreductase	date	Jan 07, 1999
title	Escherichia Coli Methylenetetrahydrofolate Reductase
authors	B.D.Guenther, C.A.Sheppard, P.Tran, R.Rozen, R.G.Matthews, M.L.Lu
compound		source
Molecule: Protein (Methylenetetrahydrofolate Reductase) Chain: A, B, C Ec: 1.7.99.5 Engineered: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Gene: Metf Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: C 1 2 1	R_factor 0.212 R_Free 0.263
crystal cell	length a length b length c angle alpha angle beta angle gamma 103.000 128.200 98.200 90.00 121.60 90.00
method	X-Ray Diffraction	resolution	2.50 Å
ligand	FAD, HG	enzyme	Oxidoreductase E.C.1.7.99.5 BRENDA
Gene Ontology	Chain Function Process Component A, C, B
Primary reference	The structure and properties of methylenetetrahydrofolate reductase from Escherichia coli suggest how folate ameliorates human hyperhomocysteinemia., Guenther BD, Sheppard CA, Tran P, Rozen R, Matthews RG, Ludwig ML, Nat Struct Biol 1999 Apr;6(4):359-65. PMID:10201405

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (135 Kb) [Save to disk] Biological Unit Coordinates (1b5t.pdb1.gz) 130 Kb LPC: Ligand-Protein Contacts for 1B5T CSU: Contacts of Structural Units for 1B5T Likely Quarternary Molecular Structure file(s) for 1B5T Retrieve 1B5T in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1B5T from S2C, [Save to disk]

View 1B5T in 3D

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Visual 3D analysis of 1B5T

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1B5T, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1b5ta_, region A [Jmol] [rasmolscript] [script source]     - Domain d1b5tb_, region B [Jmol] [rasmolscript] [script source]     - Domain d1b5tc_, region C [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: [1b5t_A] [1b5t_C] [1b5t] [1b5t_B] SWISS-PROT database: [P0AEZ1] Domain organization of [METF_ECOLI] by SWISSPFAM

Other resources with information on 1B5T

Community annotation for 1B5T at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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