1IVH

STRUCTURE OF HUMAN ISOVALERYL-COA DEHYDROGENASE AT 2.6 ANGSTROMS RESOLUTION: STRUCTURAL BASIS FOR SUBSTRATE SPECIFICITY

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations
Structure Motif: Primary M-CSA Annotation

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1ivha1	All alpha proteins	Bromodomain-like	Acyl-CoA dehydrogenase C-terminal domain-like	Medium chain acyl-CoA dehydrogenase-like, C-terminal domain	Isovaleryl-CoA dehydrogenase, C-domain	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d1ivha2	Multi-domain proteins (alpha and beta)	Acyl-CoA dehydrogenase NM domain-like	Acyl-CoA dehydrogenase NM domain-like	Medium chain acyl-CoA dehydrogenase, NM (N-terminal and middle) domains	Isovaleryl-coa dehydrogenase, NM domains	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d1ivhb1	All alpha proteins	Bromodomain-like	Acyl-CoA dehydrogenase C-terminal domain-like	Medium chain acyl-CoA dehydrogenase-like, C-terminal domain	Isovaleryl-CoA dehydrogenase, C-domain	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d1ivhb2	Multi-domain proteins (alpha and beta)	Acyl-CoA dehydrogenase NM domain-like	Acyl-CoA dehydrogenase NM domain-like	Medium chain acyl-CoA dehydrogenase, NM (N-terminal and middle) domains	Isovaleryl-coa dehydrogenase, NM domains	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C	d1ivhc1	All alpha proteins	Bromodomain-like	Acyl-CoA dehydrogenase C-terminal domain-like	Medium chain acyl-CoA dehydrogenase-like, C-terminal domain	Isovaleryl-CoA dehydrogenase, C-domain	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C	d1ivhc2	Multi-domain proteins (alpha and beta)	Acyl-CoA dehydrogenase NM domain-like	Acyl-CoA dehydrogenase NM domain-like	Medium chain acyl-CoA dehydrogenase, NM (N-terminal and middle) domains	Isovaleryl-coa dehydrogenase, NM domains	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
D	d1ivhd1	All alpha proteins	Bromodomain-like	Acyl-CoA dehydrogenase C-terminal domain-like	Medium chain acyl-CoA dehydrogenase-like, C-terminal domain	Isovaleryl-CoA dehydrogenase, C-domain	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
D	d1ivhd2	Multi-domain proteins (alpha and beta)	Acyl-CoA dehydrogenase NM domain-like	Acyl-CoA dehydrogenase NM domain-like	Medium chain acyl-CoA dehydrogenase, NM (N-terminal and middle) domains	Isovaleryl-coa dehydrogenase, NM domains	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Medium chain acyl-CoA dehydrogenase C-terminal domain-like	8024551	4000821	SCOP2 (2022-06-29)
A	SCOP2 Family	Medium chain acyl-CoA dehydrogenase FAD-binding domain-like	8025051	4002751	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Acyl-CoA dehydrogenase C-terminal domain-like	8036930	3001580	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Acyl-CoA dehydrogenase N-terminal lobe-like	8037430	3001701	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	Acyl-CoA dehydrogenase C-terminal domain-like	8036930	3001580	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Acyl-CoA dehydrogenase N-terminal lobe-like	8037430	3001701	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Acyl-CoA dehydrogenase N-terminal lobe-like	8037430	3001701	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Acyl-CoA dehydrogenase C-terminal domain-like	8036930	3001580	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Acyl-CoA dehydrogenase C-terminal domain-like	8036930	3001580	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Acyl-CoA dehydrogenase N-terminal lobe-like	8037430	3001701	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Acyl-CoA_dh_M	e1ivhA1	A: beta complex topology	X: Acyl-CoA dehydrogenase middle domain-like (From Topology)	H: Acyl-CoA dehydrogenase middle domain-like (From Topology)	T: Acyl-CoA dehydrogenase middle domain-like	F: Acyl-CoA_dh_M	ECOD (1.6)
A	Acyl-CoA_dh_N	e1ivhA2	A: alpha arrays	X: Acyl-CoA dehydrogenase N-terminal domain-like (From Topology)	H: Acyl-CoA dehydrogenase N-terminal domain-like (From Topology)	T: Acyl-CoA dehydrogenase N-terminal domain-like	F: Acyl-CoA_dh_N	ECOD (1.6)
A	Acyl-CoA_dh_1	e1ivhA3	A: alpha bundles	X: Bromodomain-like	H: Acyl-CoA dehydrogenase C-terminal domain-like (From Topology)	T: Acyl-CoA dehydrogenase C-terminal domain-like	F: Acyl-CoA_dh_1	ECOD (1.6)
B	Acyl-CoA_dh_M	e1ivhB1	A: beta complex topology	X: Acyl-CoA dehydrogenase middle domain-like (From Topology)	H: Acyl-CoA dehydrogenase middle domain-like (From Topology)	T: Acyl-CoA dehydrogenase middle domain-like	F: Acyl-CoA_dh_M	ECOD (1.6)
B	Acyl-CoA_dh_N	e1ivhB2	A: alpha arrays	X: Acyl-CoA dehydrogenase N-terminal domain-like (From Topology)	H: Acyl-CoA dehydrogenase N-terminal domain-like (From Topology)	T: Acyl-CoA dehydrogenase N-terminal domain-like	F: Acyl-CoA_dh_N	ECOD (1.6)
B	Acyl-CoA_dh_1	e1ivhB3	A: alpha bundles	X: Bromodomain-like	H: Acyl-CoA dehydrogenase C-terminal domain-like (From Topology)	T: Acyl-CoA dehydrogenase C-terminal domain-like	F: Acyl-CoA_dh_1	ECOD (1.6)
C	Acyl-CoA_dh_M	e1ivhC1	A: beta complex topology	X: Acyl-CoA dehydrogenase middle domain-like (From Topology)	H: Acyl-CoA dehydrogenase middle domain-like (From Topology)	T: Acyl-CoA dehydrogenase middle domain-like	F: Acyl-CoA_dh_M	ECOD (1.6)
C	Acyl-CoA_dh_N	e1ivhC2	A: alpha arrays	X: Acyl-CoA dehydrogenase N-terminal domain-like (From Topology)	H: Acyl-CoA dehydrogenase N-terminal domain-like (From Topology)	T: Acyl-CoA dehydrogenase N-terminal domain-like	F: Acyl-CoA_dh_N	ECOD (1.6)
C	Acyl-CoA_dh_1	e1ivhC3	A: alpha bundles	X: Bromodomain-like	H: Acyl-CoA dehydrogenase C-terminal domain-like (From Topology)	T: Acyl-CoA dehydrogenase C-terminal domain-like	F: Acyl-CoA_dh_1	ECOD (1.6)
D	Acyl-CoA_dh_M	e1ivhD1	A: beta complex topology	X: Acyl-CoA dehydrogenase middle domain-like (From Topology)	H: Acyl-CoA dehydrogenase middle domain-like (From Topology)	T: Acyl-CoA dehydrogenase middle domain-like	F: Acyl-CoA_dh_M	ECOD (1.6)
D	Acyl-CoA_dh_N	e1ivhD2	A: alpha arrays	X: Acyl-CoA dehydrogenase N-terminal domain-like (From Topology)	H: Acyl-CoA dehydrogenase N-terminal domain-like (From Topology)	T: Acyl-CoA dehydrogenase N-terminal domain-like	F: Acyl-CoA_dh_N	ECOD (1.6)
D	Acyl-CoA_dh_1	e1ivhD3	A: alpha bundles	X: Bromodomain-like	H: Acyl-CoA dehydrogenase C-terminal domain-like (From Topology)	T: Acyl-CoA dehydrogenase C-terminal domain-like	F: Acyl-CoA_dh_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.540.10	Mainly Alpha	Orthogonal Bundle	Butyryl-Coa Dehydrogenase, subunit A	domain 1	CATH (4.3.0)
A	2.40.110.10	Mainly Beta	Beta Barrel	Butyryl-CoA Dehydrogenase, subunit A	domain 2	CATH (4.3.0)
A	1.20.140.10	Mainly Alpha	Up-down Bundle	Butyryl-CoA Dehydrogenase, subunit A	domain 3	CATH (4.3.0)
B	1.10.540.10	Mainly Alpha	Orthogonal Bundle	Butyryl-Coa Dehydrogenase, subunit A	domain 1	CATH (4.3.0)
B	2.40.110.10	Mainly Beta	Beta Barrel	Butyryl-CoA Dehydrogenase, subunit A	domain 2	CATH (4.3.0)
B	1.20.140.10	Mainly Alpha	Up-down Bundle	Butyryl-CoA Dehydrogenase, subunit A	domain 3	CATH (4.3.0)
C	1.10.540.10	Mainly Alpha	Orthogonal Bundle	Butyryl-Coa Dehydrogenase, subunit A	domain 1	CATH (4.3.0)
C	2.40.110.10	Mainly Beta	Beta Barrel	Butyryl-CoA Dehydrogenase, subunit A	domain 2	CATH (4.3.0)
C	1.20.140.10	Mainly Alpha	Up-down Bundle	Butyryl-CoA Dehydrogenase, subunit A	domain 3	CATH (4.3.0)
D	1.10.540.10	Mainly Alpha	Orthogonal Bundle	Butyryl-Coa Dehydrogenase, subunit A	domain 1	CATH (4.3.0)
D	2.40.110.10	Mainly Beta	Beta Barrel	Butyryl-CoA Dehydrogenase, subunit A	domain 2	CATH (4.3.0)
D	1.20.140.10	Mainly Alpha	Up-down Bundle	Butyryl-CoA Dehydrogenase, subunit A	domain 3	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF02771	Acyl-CoA dehydrogenase, N-terminal domain (Acyl-CoA_dh_N)	Acyl-CoA dehydrogenase, N-terminal domain	The N-terminal domain of Acyl-CoA dehydrogenase is an all-alpha domain.	Domain
A, B, C, D	PF02770	Acyl-CoA dehydrogenase, middle domain (Acyl-CoA_dh_M)	Acyl-CoA dehydrogenase, middle domain	Central domain of Acyl-CoA dehydrogenase has a beta-barrel fold.	Domain
A, B, C, D	PF00441	Acyl-CoA dehydrogenase, C-terminal domain (Acyl-CoA_dh_1)	Acyl-CoA dehydrogenase, C-terminal domain	C-terminal domain of Acyl-CoA dehydrogenase is an all-alpha, four helical up-and-down bundle.	Domain
A, B, C, D	PF08028	Acyl-CoA dehydrogenase, C-terminal domain (Acyl-CoA_dh_2)	Acyl-CoA dehydrogenase, C-terminal domain		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	ISOVALERYL-COA DEHYDROGENASE	flavin adenine dinucleotide binding binding nucleoside phosphate binding ion binding anion binding nucleotide binding heterocyclic compound binding small molecule binding identical protein binding protein binding oxidoreductase activity, acting on the CH-CH group of donors, with a flavin as acceptor oxidoreductase activity short-chain fatty acyl-CoA dehydrogenase activity acyl-CoA dehydrogenase activity flavin adenine dinucleotide binding binding nucleoside phosphate binding ion binding anion binding nucleotide binding heterocyclic compound binding small molecule binding identical protein binding protein binding oxidoreductase activity, acting on the CH-CH group of donors, with a flavin as acceptor oxidoreductase activity short-chain fatty acyl-CoA dehydrogenase activity acyl-CoA dehydrogenase activity 3-methylbutanoyl-CoA dehydrogenase activity oxidoreductase activity, acting on the CH-CH group of donors catalytic activity	catabolic process oxoacid metabolic process carboxylic acid metabolic process amino acid metabolic process primary metabolic process organic acid catabolic process organic acid metabolic process branched-chain amino acid catabolic process cellular catabolic process carboxylic acid catabolic process metabolic process cellular process small molecule metabolic process branched-chain amino acid metabolic process catabolic process oxoacid metabolic process carboxylic acid metabolic process amino acid metabolic process primary metabolic process organic acid catabolic process organic acid metabolic process branched-chain amino acid catabolic process cellular catabolic process carboxylic acid catabolic process metabolic process cellular process small molecule metabolic process branched-chain amino acid metabolic process small molecule catabolic process amino acid catabolic process pyruvate family amino acid metabolic process alpha-amino acid metabolic process pyruvate family amino acid catabolic process L-leucine metabolic process L-leucine catabolic process L-amino acid catabolic process L-amino acid metabolic process proteinogenic amino acid metabolic process alpha-amino acid catabolic process proteinogenic amino acid catabolic process monocarboxylic acid catabolic process fatty acid oxidation fatty acid beta-oxidation lipid oxidation fatty acid metabolic process lipid catabolic process lipid modification fatty acid catabolic process monocarboxylic acid metabolic process fatty acid beta-oxidation using acyl-CoA dehydrogenase lipid metabolic process	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle nucleus membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle nucleus membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen mitochondrial matrix

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR034183	Isovaleryl-CoA dehydrogenase	Family
A, B, C, D	IPR006091	Acyl-CoA oxidase/dehydrogenase, middle domain	Domain
A, B, C, D	IPR006089	Acyl-CoA dehydrogenase, conserved site	Conserved Site
A, B, C, D	IPR036250	Acyl-CoA dehydrogenase-like, C-terminal	Homologous Superfamily
A, B, C, D	IPR013786	Acyl-CoA dehydrogenase/oxidase, N-terminal	Domain
A, B, C, D	IPR037069	Acyl-CoA dehydrogenase/oxidase, N-terminal domain superfamily	Homologous Superfamily
A, B, C, D	IPR009100	Acyl-CoA dehydrogenase/oxidase, N-terminal and middle domain superfamily	Homologous Superfamily
A, B, C, D	IPR046373	Acyl-CoA oxidase/dehydrogenase, middle domain superfamily	Homologous Superfamily
A, B, C, D	IPR009075	Acyl-CoA dehydrogenase/oxidase, C-terminal	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B, C, D	Pharos: P26440	isovaleric acidemia idiopathic pulmonary fibrosis Liver Cirrhosis, Experimental inherited organic acidemia osteosarcoma pilocytic astrocytoma intellectual disability ovarian cancer inborn errors of metabolism lung carcinoma pancreatic ductal adenocarcinoma

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

Chains	Enzyme Name	Description	Catalytic Residues
A	isovaleryl-CoA dehydrogenase M-CSA #68	Isovaryl-CoA dehydrogenase (IVD) belongs to an important flavoprotein family of acyl CoA dehydrogenases that catalyse the alpha,beta-dehydrogenation of their various thioester substrates. IVD is most reactive for a small, branched-chain substrate, catalysing the conversion of isovaleryl-CoA (3-methylbutyryl-CoA) into 3-methylcrotonyl-CoA as the third step of leucine catabolism. This enzyme is a tetrameric flavoprotein which contains one molecule of flavin adenine dinucleotide (FAD) per monomer. Deficiency of IVD results in isovaleric acidemia (IVA), a life-threatening disorder in which leucine catabolism is blocked and organic acids accumulate in the body.	Defined by 4 residues: MET:A-135SER:A-136GLU:A-254ARG:A-387 \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 1.3.99.10 (PDB Primary Data) Search M-CSA Motif + EC 1.3.99.10 EC: 1.3.8.4 (UniProt) Search M-CSA Motif + EC 1.3.8.4 EC: 1.3.8.1 (UniProt) Search M-CSA Motif + EC 1.3.8.1

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.