BCKDK
Homo sapiens
Gene Name: Branched chain ketoacid dehydrogenase kinase
Aliases: BCKDKD, BDK
Chromosome No: 16
Chromosome Band: 16p11.2
Genetic Category: Rare single gene variant-
Aliases: BCKDKD, BDK
Chromosome No: 16
Chromosome Band: 16p11.2
Genetic Category: Rare single gene variant-
Summary Statistics:
ASD Reports: 9
Recent Reports: 3
Annotated variants: 22
Associated CNVs: 3
Evidence score: 2
ASD Reports: 9
Recent Reports: 3
Annotated variants: 22
Associated CNVs: 3
Evidence score: 2
Gene Score: 2
Associated Disorders: |
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Relevance to Autism
Three different homozygous variants (one nonsense, one frameshift, one missense) in the BCKDK gene that segregated with disease were identified in three consanguineous families presenting with autism and ID (Novarino et al., 2012).
Molecular Function
Catalyzes the phosphorylation and inactivation of the branched-chain alpha-ketoacid dehydrogenase complex, the key regulatory enzyme of the valine, leucine and isoleucine catabolic pathways. Key enzyme that regulate the activity state of the BCKD complex. Defects in this gene are associated with branched-chain ketoacid dehydrogenase kinase deficiency (BCKDKD) [MIM:614923], a metabolic disorder characterized by autism, epilepsy, intellectual disability, and reduced branched-chain amino acids.
References
Type
Title
Type of Disorder
Associated Disorders
Author, Year
Primary
Mutations in BCKD-kinase lead to a potentially treatable form of autism with epilepsy.
Branched-chain ketoacid dehydrogenase kinase defic
ASD, ID, epilepsy
Support
Inherited and De Novo Genetic Risk for Autism Impacts Shared Networks.
ASD
Support
Whole genome sequencing analysis identifies sex differences of familial pattern contributing to phenotypic diversity in autism
ASD
Support
Novel Loss of Function Variant in BCKDK Causes a Treatable Developmental and Epileptic Encephalopathy
ASD, DD, epilepsy/seizures
Support
Genome sequencing of 320 Chinese children with epilepsy: a clinical and molecular study
ASD, DD, epilepsy/seizures
Recent Recommendation
Two novel mutations in the BCKDK (branched-chain keto-acid dehydrogenase kinase) gene are responsible for a neurobehavioral deficit in two pediatri...
Branched-chain ketoacid dehydrogenase kinase defic
DD
Recent Recommendation
Structure-based design and mechanisms of allosteric inhibitors for mitochondrial branched-chain -ketoacid dehydrogenase kinase.
Rare
Variant ID
Variant Type
Allele Change
Residue Change
Inheritance Pattern
Inheritance Association
Family Type
Author, Year
GEN423R001a
stop_gained
c.466C>T
p.Arg156Ter
Familial
Both parents
Multiplex
GEN423R002a
frameshift_variant
c.222del
p.Met74IlefsTer15
Familial
Both parents
Multiplex
GEN423R003a
missense_variant
c.671G>C
p.Arg224Pro
Familial
Both parents
Multiplex
GEN423R004a
splice_site_variant
c.520C>G
p.Arg174Gly
Familial
Both parents
Simplex
GEN423R005a
missense_variant
c.1166T>C
p.Leu389Pro
Familial
Both parents
Simplex
GEN423R006
frameshift_variant
c.986dup
p.Met329IlefsTer9
Familial
Maternal
Multiplex
GEN423R008a
inframe_deletion
c.999_1001del
p.Thr335del
Familial
Both parents
Multiplex
GEN423R010a
stop_gained
c.466C>T
p.Arg156Ter
Familial
Both parents
Multiplex
GEN423R011a
stop_gained
c.466C>T
p.Arg156Ter
Familial
Both parents
Multiplex
GEN423R012a
stop_gained
c.466C>T
p.Arg156Ter
Familial
Both parents
Multiplex
GEN423R018a
stop_gained
c.466C>T
p.Arg156Ter
Familial
Both parents
Multiplex
GEN423R019a
missense_variant
c.617A>C
p.His206Pro
Familial
Both parents
Simplex
Common
No Common Variants Available