1HYH

CRYSTAL STRUCTURE OF L-2-HYDROXYISOCAPROATE DEHYDROGENASE FROM LACTOBACILLUS CONFUSUS AT 2.2 ANGSTROMS RESOLUTION-AN EXAMPLE OF STRONG ASYMMETRY BETWEEN SUBUNITS

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

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1hyha1	Alpha and beta proteins (a/b)	NAD(P)-binding Rossmann-fold domains	NAD(P)-binding Rossmann-fold domains	LDH N-terminal domain-like	L-2-hydroxyisocapronate dehydrogenase, L-HICDH	(Weissella confusa ) [TaxId: 1583 ],	SCOPe (2.08)
A	d1hyha2	Alpha and beta proteins (a+b)	LDH C-terminal domain-like	LDH C-terminal domain-like	Lactate & malate dehydrogenases, C-terminal domain	L-2-hydroxyisocapronate dehydrogenase, L-HICDH	(Weissella confusa ) [TaxId: 1583 ],	SCOPe (2.08)
B	d1hyhb1	Alpha and beta proteins (a/b)	NAD(P)-binding Rossmann-fold domains	NAD(P)-binding Rossmann-fold domains	LDH N-terminal domain-like	L-2-hydroxyisocapronate dehydrogenase, L-HICDH	(Weissella confusa ) [TaxId: 1583 ],	SCOPe (2.08)
B	d1hyhb2	Alpha and beta proteins (a+b)	LDH C-terminal domain-like	LDH C-terminal domain-like	Lactate & malate dehydrogenases, C-terminal domain	L-2-hydroxyisocapronate dehydrogenase, L-HICDH	(Weissella confusa ) [TaxId: 1583 ],	SCOPe (2.08)
C	d1hyhc1	Alpha and beta proteins (a/b)	NAD(P)-binding Rossmann-fold domains	NAD(P)-binding Rossmann-fold domains	LDH N-terminal domain-like	L-2-hydroxyisocapronate dehydrogenase, L-HICDH	(Weissella confusa ) [TaxId: 1583 ],	SCOPe (2.08)
C	d1hyhc2	Alpha and beta proteins (a+b)	LDH C-terminal domain-like	LDH C-terminal domain-like	Lactate & malate dehydrogenases, C-terminal domain	L-2-hydroxyisocapronate dehydrogenase, L-HICDH	(Weissella confusa ) [TaxId: 1583 ],	SCOPe (2.08)
D	d1hyhd1	Alpha and beta proteins (a/b)	NAD(P)-binding Rossmann-fold domains	NAD(P)-binding Rossmann-fold domains	LDH N-terminal domain-like	L-2-hydroxyisocapronate dehydrogenase, L-HICDH	(Weissella confusa ) [TaxId: 1583 ],	SCOPe (2.08)
D	d1hyhd2	Alpha and beta proteins (a+b)	LDH C-terminal domain-like	LDH C-terminal domain-like	Lactate & malate dehydrogenases, C-terminal domain	L-2-hydroxyisocapronate dehydrogenase, L-HICDH	(Weissella confusa ) [TaxId: 1583 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	LDH/MDH-like	8057347	4000045	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	LDH/MDH/AglA-like	8057348	3000039	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	LDH/MDH/AglA-like	8057348	3000039	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	LDH/MDH/AglA-like	8057348	3000039	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	LDH/MDH/AglA-like	8057348	3000039	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	Ldh_1_C_12	e1hyhA1	A: a+b complex topology	X: LDH C-terminal domain-like (From Topology)	H: LDH C-terminal domain-like (From Topology)	T: LDH C-terminal domain-like	F: Ldh_1_C_12	ECOD (1.6)
A	Ldh_1_N	e1hyhA2	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NAD(P)-binding Rossmann-fold domains	F: Ldh_1_N	ECOD (1.6)
B	Ldh_1_C_12	e1hyhB3	A: a+b complex topology	X: LDH C-terminal domain-like (From Topology)	H: LDH C-terminal domain-like (From Topology)	T: LDH C-terminal domain-like	F: Ldh_1_C_12	ECOD (1.6)
B	Ldh_1_N	e1hyhB2	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NAD(P)-binding Rossmann-fold domains	F: Ldh_1_N	ECOD (1.6)
C	Ldh_1_C_12	e1hyhC3	A: a+b complex topology	X: LDH C-terminal domain-like (From Topology)	H: LDH C-terminal domain-like (From Topology)	T: LDH C-terminal domain-like	F: Ldh_1_C_12	ECOD (1.6)
C	Ldh_1_N	e1hyhC2	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NAD(P)-binding Rossmann-fold domains	F: Ldh_1_N	ECOD (1.6)
D	Ldh_1_C_12	e1hyhD3	A: a+b complex topology	X: LDH C-terminal domain-like (From Topology)	H: LDH C-terminal domain-like (From Topology)	T: LDH C-terminal domain-like	F: Ldh_1_C_12	ECOD (1.6)
D	Ldh_1_N	e1hyhD2	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NAD(P)-binding Rossmann-fold domains	F: Ldh_1_N	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
A	3.90.110.10	Alpha Beta	Alpha-Beta Complex	L-2-Hydroxyisocaproate Dehydrogenase	Chain A, domain 2	CATH (4.3.0)
B	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
B	3.90.110.10	Alpha Beta	Alpha-Beta Complex	L-2-Hydroxyisocaproate Dehydrogenase	Chain A, domain 2	CATH (4.3.0)
C	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
C	3.90.110.10	Alpha Beta	Alpha-Beta Complex	L-2-Hydroxyisocaproate Dehydrogenase	Chain A, domain 2	CATH (4.3.0)
D	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
D	3.90.110.10	Alpha Beta	Alpha-Beta Complex	L-2-Hydroxyisocaproate Dehydrogenase	Chain A, domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF02866	lactate/malate dehydrogenase, alpha/beta C-terminal domain (Ldh_1_C)	lactate/malate dehydrogenase, alpha/beta C-terminal domain	L-lactate dehydrogenases are metabolic enzymes which catalyse the conversion of L-lactate to pyruvate, the last step in anaerobic glycolysis. L-2-hydroxyisocaproate dehydrogenases are also members of the family. Malate dehydrogenases catalyse the in ...	L-lactate dehydrogenases are metabolic enzymes which catalyse the conversion of L-lactate to pyruvate, the last step in anaerobic glycolysis. L-2-hydroxyisocaproate dehydrogenases are also members of the family. Malate dehydrogenases catalyse the interconversion of malate to oxaloacetate. The enzyme participates in the citric acid cycle. L-lactate dehydrogenase is also found as a lens crystallin in bird and crocodile eyes.	Domain
A, B, C, D	PF00056	lactate/malate dehydrogenase, NAD binding domain (Ldh_1_N)	lactate/malate dehydrogenase, NAD binding domain	L-lactate dehydrogenases are metabolic enzymes which catalyse the conversion of L-lactate to pyruvate, the last step in anaerobic glycolysis. L-2-hydroxyisocaproate dehydrogenases are also members of the family. Malate dehydrogenases catalyse the in ...	L-lactate dehydrogenases are metabolic enzymes which catalyse the conversion of L-lactate to pyruvate, the last step in anaerobic glycolysis. L-2-hydroxyisocaproate dehydrogenases are also members of the family. Malate dehydrogenases catalyse the interconversion of malate to oxaloacetate. The enzyme participates in the citric acid cycle. L-lactate dehydrogenase is also found as a lens crystallin in bird and crocodile eyes. N-terminus (this family) is a Rossmann NAD-binding fold. C-terminus is an unusual alpha+beta fold.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	L-2-HYDROXYISOCAPROATE DEHYDROGENASE	oxidoreductase activity oxidoreductase activity, acting on the CH-OH group of donors, NAD or NADP as acceptor oxidoreductase activity, acting on CH-OH group of donors lactate dehydrogenase activity L-lactate dehydrogenase activity catalytic activity	oxoacid metabolic process carboxylic acid metabolic process small molecule metabolic process metabolic process cellular process organic acid metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR018177	L-lactate dehydrogenase, active site	Active Site
A, B, C, D	IPR001236	Lactate/malate dehydrogenase, N-terminal	Domain
A, B, C, D	IPR036291	NAD(P)-binding domain superfamily	Homologous Superfamily
A, B, C, D	IPR015955	Lactate dehydrogenase/glycoside hydrolase, family 4, C-terminal	Homologous Superfamily
A, B, C, D	IPR022383	Lactate/malate dehydrogenase, C-terminal	Domain
A, B, C, D	IPR001557	L-lactate/malate dehydrogenase	Family

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.