Gene Gene information from NCBI Gene database.
Entrez ID 594
Gene name Branched chain keto acid dehydrogenase E1 subunit beta
Gene symbol BCKDHB
Synonyms (NCBI Gene)
BCKDE1BBCKDH E1-betaE1BMSUD1BOVD1B
Chromosome 6
Chromosome location 6q14.1
Summary This gene encodes the E1 beta subunit of branched-chain keto acid dehydrogenase, which is a multienzyme complex associated with the inner membrane of mitochondria. This enzyme complex functions in the catabolism of branched-chain amino acids. Mutations in
SNPs SNP information provided by dbSNP.
90
SNP ID Visualize variation Clinical significance Consequence
rs79761867 G>A,C Likely-pathogenic, pathogenic-likely-pathogenic, pathogenic Coding sequence variant, missense variant, non coding transcript variant
rs121965004 C>T Pathogenic Missense variant, non coding transcript variant, coding sequence variant
rs121965005 T>G Pathogenic Missense variant, non coding transcript variant, coding sequence variant
rs148905512 C>T Pathogenic Coding sequence variant, non coding transcript variant, missense variant
rs149766077 C>G,T Likely-pathogenic Coding sequence variant, non coding transcript variant, missense variant
miRNA miRNA information provided by mirtarbase database.
177
miRTarBase ID miRNA Experiments Reference
MIRT001381 hsa-miR-1-3p pSILAC 18668040
MIRT001381 hsa-miR-1-3p Proteomics;Other 18668040
MIRT818028 hsa-miR-3152-3p CLIP-seq
MIRT818029 hsa-miR-338-5p CLIP-seq
MIRT818030 hsa-miR-3647-3p CLIP-seq
Gene ontology (GO) Gene Ontology (GO) annotations describing the biological processes, molecular functions, and cellular components associated with a gene.
26
GO ID Ontology Definition Evidence Reference
GO:0003863 Function Branched-chain 2-oxo acid dehydrogenase activity IDA 9582350, 10745006
GO:0003863 Function Branched-chain 2-oxo acid dehydrogenase activity IEA
GO:0003863 Function Branched-chain 2-oxo acid dehydrogenase activity IMP 2022752
GO:0005515 Function Protein binding IPI 10745006, 12902323, 15166214, 15576032, 28514442, 33961781
GO:0005654 Component Nucleoplasm IDA
Other IDs Other IDs provides unique identifiers for this gene in OMIM, HGNC, and Ensembl databases.
MIM HGNC e!Ensembl
248611 987 ENSG00000083123
Protein Protein information from UniProt database.
UniProt ID Unique identifier for the protein in the UniProt database. Click to view detailed protein information.
P21953
Protein name 2-oxoisovalerate dehydrogenase subunit beta, mitochondrial (EC 1.2.4.4) (Branched-chain alpha-keto acid dehydrogenase E1 component beta chain) (BCKDE1B) (BCKDH E1-beta)
Protein function Together with BCKDHA forms the heterotetrameric E1 subunit of the mitochondrial branched-chain alpha-ketoacid dehydrogenase (BCKD) complex. The BCKD complex catalyzes the multi-step oxidative decarboxylation of alpha-ketoacids derived from the b
PDB 1DTW , 1OLS , 1OLU , 1OLX , 1U5B , 1V11 , 1V16 , 1V1M , 1V1R , 1WCI , 1X7W , 1X7X , 1X7Y , 1X7Z , 1X80 , 2BEU , 2BEV , 2BEW , 2BFB , 2BFC , 2BFD , 2BFE , 2BFF , 2J9F
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF02779 Transket_pyr 69 247 Transketolase, pyrimidine binding domain Domain
PF02780 Transketolase_C 261 382 Transketolase, C-terminal domain Domain
Sequence
Sequence length 392
Interactions View interactions
Pathways Pathway information has different metabolic/signaling pathways associated with genes.
  KEGG  Reactome
  Valine, leucine and isoleucine degradation
Propanoate metabolism
Lipoic acid metabolism
Metabolic pathways
2-Oxocarboxylic acid metabolism
  Glyoxylate metabolism and glycine degradation
Branched-chain amino acid catabolism
Associated diseases Disease associations from ClinVar (causal & non-causal) and other databases (OMIM, Orphanet, GWAS, etc.).
32
Evidence Score: ★☆☆☆☆  Gene-disease association found in Text Mining only ★★☆☆☆  Found in Text Mining and Unknown/Other Associations ★★★☆☆  Reported in Unknown/Other Associations across ≥2 Sources ★★★★☆  ClinVar: Pathogenic/Likely Pathogenic (<5 Variants) ★★★★★  ClinVar: Pathogenic/Likely Pathogenic (≥5 Variants)
Causal Diseases associated with Pathogenic or Likely Pathogenic variants in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession Evidence Score
Abnormality of metabolism/homeostasis Likely pathogenic; Pathogenic rs751953459 RCV001814191
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
BCKDHB-related disorder Likely pathogenic; Pathogenic rs1350590893, rs751953459, rs751599203, rs386834233 RCV003414328
RCV004730986
RCV003403562
RCV004751250
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Maple syrup urine disease Likely pathogenic; Pathogenic rs398124560, rs398124561, rs398124562, rs398124571, rs398124572, rs398124573, rs398124581, rs371518124, rs398124582, rs149766077, rs398124586, rs398124587, rs398124589, rs398124592, rs398124593
View all (135 more)
RCV000674620
RCV001052144
RCV000173927
RCV001162146
RCV000173587
View all (156 more)
★★★★★
ClinVar: Pathogenic / Likely Pathogenic (≥5 Variants)
Maple syrup urine disease type 1A Likely pathogenic; Pathogenic rs398124560, rs398124561, rs398124562, rs398124572, rs398124573, rs398124581, rs371518124, rs398124587, rs398124589, rs398124593, rs398124594, rs398124596, rs398124598, rs398124601, rs398124603
View all (63 more)
RCV004566957
RCV004566959
RCV004566960
RCV004566961
RCV004566962
View all (81 more)
★★★★★
ClinVar: Pathogenic / Likely Pathogenic (≥5 Variants)
Unknown / Other Associations ClinVar entries with uncertain/conflicting evidence, and associations from other databases (OMIM, Orphanet, GWAS, etc.) where the gene is not established as causal.
Phenotype Name Clinical Significance Source Evidence Score
Acute myeloid leukemia Likely benign ClinVar
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
AMBLYOPIA GWAS catalog
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Cholangiocarcinoma Benign ClinVar
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
CLASSIC MAPLE SYRUP URINE DISEASE GWAS catalog, Orphanet
GWAS catalog, Orphanet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Associations from Text Mining Disease associations identified through text mining
Disease Name Disease (Merged) Source PMID Relationship Type Evidence Score
Anaplastic thyroid carcinoma Anaplastic thyroid cancer BEFREE 12050209
★☆☆☆☆
Found in Text Mining only
Brain Injuries Brain injuries Pubtator 28830848 Associate
★☆☆☆☆
Found in Text Mining only
Carcinoma Hepatocellular Hepatocellular carcinoma Pubtator 23750246 Associate
★☆☆☆☆
Found in Text Mining only
Celiac Disease Celiac disease BEFREE 2525272
★☆☆☆☆
Found in Text Mining only
Classic maple syrup urine disease Maple Syrup Urine Disease Orphanet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Classic Maple Syrup Urine Disease Maple Syrup Urine Disease CTD_human_DG
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Fatigue Syndrome Chronic Fatigue syndrome Pubtator 33669532 Associate
★☆☆☆☆
Found in Text Mining only
Hallucinations Hallucinations HPO_DG
★☆☆☆☆
Found in Text Mining only
Hypoglycemia Hypoglycemia HPO_DG
★☆☆☆☆
Found in Text Mining only
Hypoxia Hypoxia Pubtator 17278190 Associate
★☆☆☆☆
Found in Text Mining only