2BFF	Oxidoreductase	date	Dec 06, 2004
title	Reactivity Modulation Of Human Branched-Chain Alpha-Ketoacid Dehydrogenase By An Internal Molecular Switch
authors	M.Machius, R.M.Wynn, J.L.Chuang, D.R.Tomchick, C.A.Brautigam, D.T
compound		source
Molecule: 2-Oxoisovalerate Dehydrogenase Alpha Subunit Chain: A Fragment: Residues 46-445 Synonym: Branched-Chain Alpha-Keto Acid Dehydrogenase E1 Co Alpha Chain, Bckdh E1-Alpha, Bckde1a; Ec: 1.2.4.4 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Escherichia Coli Expression_system_taxid: 511693 Expression_system_strain: Bl21 Expression_system_vector: Ptrchisb (Invitrogen) Expression_system_plasmid: Ptrc-Alpha-Betahis Other_details: Expression Strain Overexpressing Groel And G
Molecule: 2-Oxoisovalerate Dehydrogenase Beta Subunit Chain: B Fragment: Residues 51-392 Synonym: Branched-Chain Alpha-Keto Acid Dehydrogenase E1 Co Beta Chain, Bckdh E1-Beta; Ec: 1.2.4.4 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Escherichia Coli Expression_system_taxid: 511693 Expression_system_strain: Bl21 Expression_system_vector: Ptrchisb (Invitrogen) Expression_system_plasmid: Ptrc-Alpha-Betahis Other_details: Expression Strain Overexpressing Groel And G
symmetry	Space Group: P 31 2 1	R_factor 0.149 R_Free 0.166
crystal cell	length a length b length c angle alpha angle beta angle gamma 145.133 145.133 69.360 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	1.46 Å
ligand	GOL, K, MN, TZD	enzyme	Oxidoreductase E.C.1.2.4.4 BRENDA
note	2BFF is a representative structure
Gene Ontology	Chain Function Process Component A B
Primary reference	A versatile conformational switch regulates reactivity in human branched-chain alpha-ketoacid dehydrogenase., Machius M, Wynn RM, Chuang JL, Li J, Kluger R, Yu D, Tomchick DR, Brautigam CA, Chuang DT, Structure. 2006 Feb;14(2):287-98. PMID:16472748

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (145 Kb) [Save to disk] Biological Unit Coordinates (2bff.pdb1.gz) 269 Kb LPC: Ligand-Protein Contacts for 2BFF CSU: Contacts of Structural Units for 2BFF Likely Quarternary Molecular Structure file(s) for 2BFF Structure Factors (1049 Kb) Retrieve 2BFF in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2BFF from S2C, [Save to disk] Re-refined 2bff structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2BFF 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 2BFF

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 2BFF, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2bff_A] [2bff_B] [2bff] SWISS-PROT database: [P12694] [P21953] Domain organization of [ODBA_HUMAN] [ODBB_HUMAN] by SWISSPFAM Domain found in 2BFF: [Transket_pyr ] by SMART

Other resources with information on 2BFF

Community annotation for 2BFF at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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