Structure of PDB 1u5b Chain A

Receptor sequence
>1u5bA (length=391) Species: 9606 (Homo sapiens) [Search protein sequence]
KPQFPGASAEFIDKLEFIQPNVISGIPIYRVMDRQGQIINPSEDPHLPKE
KVLKLYKSMTLLNTMDRILYESQRQGRISFYMTNYGEEGTHVGSAAALDN
TDLVFGQYREAGVLMYRDYPLELFMAQCYGNISDLGKGRQMPVHYGCKER
HFVTISSPLATQIPQAVGAAYAAKRANANRVVICYFGEGAASEGDAHAGF
NFAATLECPIIFFCRNNGYAISTPTSEQYRGDGIAARGPGYGIMSIRVDG
NDVFAVYNATKEARRRAVAENQPFLIEAMTYRIGHHSTSDDSSAYRVNYW
DKQDHPISRLRHYLLSQGWWDEEQEKAWRKQSRRKVMEAFEQAERKPKPN
PNLLFSDVYQEMPAQLRKQQESLARHLQTYGEHYPLDHFDK
3D structure
PDB1u5b Molecular mechanism for regulation of the human mitochondrial branched-chain alpha-ketoacid dehydrogenase complex by phosphorylation
ChainA
Resolution1.83 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 H291 S292 Y300
Catalytic site (residue number reindexed from 1) E71 S157 R282 H286 S287 Y295
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 A225 E188 N217 Y219 A220
BS02 TPP A Q112 Y113 R114 L164 G192 E193 G194 A195 R220 N222 Y224 A225 I226 H291 Q107 Y108 R109 L159 G187 E188 G189 A190 R215 N217 Y219 A220 I221 H286
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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Biological Process
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Cellular Component
External links
PDB RCSB:1u5b, PDBe:1u5b, PDBj:1u5b
PDBsum1u5b
PubMed15576032
UniProtP12694|ODBA_HUMAN 2-oxoisovalerate dehydrogenase subunit alpha, mitochondrial (Gene Name=BCKDHA)

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