Structure of PDB 2bfb Chain A

Receptor sequence
>2bfbA (length=370) Species: 9606 (Homo sapiens) [Search protein sequence]
KPQFPGASAEFIDKLEFIQPNVISGIPIYRVMDRQGQIINPSEDPHLPKE
KVLKLYKSMTLLNTMDRILYESQRQGRISFYMTNYGEEGTHVGSAAALDN
TDLVFGAYREAGVLMYRDYPLELFMAQCYGNISDLGKGRQMPVHYGCKER
HFVTISSPLATQIPQAVGAAYAAKRANANRVVICYFGEGAASEGDAHAGF
NFAATLECPIIFFCRNNGYAISTPTSEQYRGDGIAARGPGYGIMSIRVDG
NDVFAVYNATKEARRRAVAENQPFLIEAMTYRDHPISRLRHYLLSQGWWD
EEQEKAWRKQSRRKVMEAFEQAERKPKPNPNLLFSDVYQEMPAQLRKQQE
SLARHLQTYGEHYPLDHFDK
3D structure
PDB2bfb A Versatile Conformational Switch Regulates Reactivity in Human Branched-Chain Alpha-Ketoacid Dehydrogenase.
ChainA
Resolution1.77 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) E76 S162 R287
Catalytic site (residue number reindexed from 1) E71 S157 R282
Enzyme Commision number 1.2.4.4: 3-methyl-2-oxobutanoate dehydrogenase (2-methylpropanoyl-transferring).
Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 MN A E193 N222 Y224 E188 N217 Y219
BS02 TPP A Y113 R114 L164 G192 E193 G194 A195 R220 N222 Y224 A225 I226 Y108 R109 L159 G187 E188 G189 A190 R215 N217 Y219 A220 I221
Gene Ontology
Molecular Function
GO:0003863 3-methyl-2-oxobutanoate dehydrogenase (2-methylpropanoyl-transferring) activity
GO:0005515 protein binding
GO:0016491 oxidoreductase activity
GO:0016624 oxidoreductase activity, acting on the aldehyde or oxo group of donors, disulfide as acceptor
GO:0016831 carboxy-lyase activity
GO:0046872 metal ion binding
GO:0047101 branched-chain alpha-keto acid dehydrogenase activity
Biological Process
GO:0009083 branched-chain amino acid catabolic process
Cellular Component
GO:0005739 mitochondrion
GO:0005759 mitochondrial matrix
GO:0045252 oxoglutarate dehydrogenase complex
GO:0160157 branched-chain alpha-ketoacid dehydrogenase complex

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Molecular Function
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Cellular Component
External links
PDB RCSB:2bfb, PDBe:2bfb, PDBj:2bfb
PDBsum2bfb
PubMed16472748
UniProtP12694|ODBA_HUMAN 2-oxoisovalerate dehydrogenase subunit alpha, mitochondrial (Gene Name=BCKDHA)

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