8QDE

Crystal structure of a truncated human L-Lactate Dehydrogenase B protein in complex with NADH and oxamate

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
C	SCOP2B Superfamily	LDH/MDH/AglA-like	8057308	3000039	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	LDH/MDH/AglA-like	8057308	3000039	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	LDH/MDH/AglA-like	8057308	3000039	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	LDH/MDH/AglA-like	8057308	3000039	SCOP2B (2022-06-29)

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-lactate dehydrogenase B chain	protein binding binding kinase binding enzyme binding 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 NAD binding nucleoside phosphate binding purine nucleotide binding organic cyclic compound binding protein binding binding kinase binding enzyme binding 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 NAD binding nucleoside phosphate binding purine nucleotide binding organic cyclic compound binding adenyl nucleotide binding nucleotide binding heterocyclic compound binding small molecule binding identical protein binding	pyruvate metabolic process oxoacid metabolic process cellular metabolic process carboxylic acid metabolic process small molecule metabolic process metabolic process cellular process monocarboxylic acid metabolic process organic acid metabolic process organic hydroxy compound metabolic process lactate metabolic process nucleoside phosphate metabolic process nicotinamide nucleotide metabolic process primary metabolic process pyruvate metabolic process oxoacid metabolic process cellular metabolic process carboxylic acid metabolic process small molecule metabolic process metabolic process cellular process monocarboxylic acid metabolic process organic acid metabolic process organic hydroxy compound metabolic process lactate metabolic process nucleoside phosphate metabolic process nicotinamide nucleotide metabolic process primary metabolic process nucleotide metabolic process NAD metabolic process purine-containing compound metabolic process nucleobase-containing compound metabolic process purine nucleotide metabolic process organophosphate metabolic process nucleobase-containing small molecule metabolic process phosphate-containing compound metabolic process pyridine-containing compound metabolic process phosphorus metabolic process pyridine nucleotide metabolic process	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope organelle membrane protein-containing complex catalytic complex oxidoreductase complex extracellular exosome extracellular vesicle extracellular organelle extracellular region extracellular space vesicle extracellular membrane-bounded organelle cytosol membrane microdomain membrane raft

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR011304	L-lactate dehydrogenase	Family
A, B, C, D	IPR018177	L-lactate dehydrogenase, active site	Active Site
A, B, C, D	IPR015955	Lactate dehydrogenase/glycoside hydrolase, family 4, C-terminal	Homologous Superfamily
A, B, C, D	IPR001557	L-lactate/malate dehydrogenase	Family
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	IPR022383	Lactate/malate dehydrogenase, C-terminal	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B, C, D	Pharos: P07195	glycogen storage disease due to lactate dehydrogenase H-subunit deficiency renal cell carcinoma breast carcinoma Neoplasm Invasiveness acute coronary syndrome prostate cancer breast cancer inborn errors of metabolism papillary renal cell carcinoma sarcomatoid renal cell carcinoma collecting duct carcinoma ductal breast carcinoma in situ chromophobe renal cell carcinoma pancreatic ductal adenocarcinoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia glycogen storage disease due to lactate dehydrogenase H-subunit deficiency renal cell carcinoma breast carcinoma Neoplasm Invasiveness acute coronary syndrome prostate cancer breast cancer inborn errors of metabolism papillary renal cell carcinoma sarcomatoid renal cell carcinoma collecting duct carcinoma ductal breast carcinoma in situ chromophobe renal cell carcinoma pancreatic ductal adenocarcinoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia clear cell renal carcinoma dermatomyositis lung cancer pancreatic intraductal papillary-mucinous carcinoma invasive ductal breast carcinoma lung carcinoma malignant pancreatic neoplasm medulloblastoma ovarian cancer pancreatic intraductal papillary-mucinous neoplasm plasma cell myeloma renal carcinoma brain disease lymphoplasmacytic lymphoma

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.