chr16-31111358-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 4P and 2B. PM1PM2BP4_Moderate

The NM_005881.4(BCKDK):ā€‹c.904A>Gā€‹(p.Ile302Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000558 in 1,614,056 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…ā˜…).

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 32)
Exomes š‘“: 0.0000055 ( 0 hom. )

Consequence

BCKDK
NM_005881.4 missense

Scores

1
5
13

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 8.65
Variant links:
Genes affected
BCKDK (HGNC:16902): (branched chain keto acid dehydrogenase kinase) The branched-chain alpha-ketoacid dehydrogenase complex (BCKD) is an important regulator of the valine, leucine, and isoleucine catabolic pathways. The protein encoded by this gene is found in the mitochondrion, where it phosphorylates and inactivates BCKD. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM1
In a domain Histidine kinase (size 245) in uniprot entity BCKD_HUMAN there are 4 pathogenic changes around while only 1 benign (80%) in NM_005881.4
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.25857514).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
BCKDKNM_005881.4 linkuse as main transcriptc.904A>G p.Ile302Val missense_variant 10/12 ENST00000219794.11 NP_005872.2
BCKDKNM_001122957.4 linkuse as main transcriptc.904A>G p.Ile302Val missense_variant 10/11 NP_001116429.1
BCKDKXM_017022859.2 linkuse as main transcriptc.904A>G p.Ile302Val missense_variant 10/12 XP_016878348.1
BCKDKNM_001271926.3 linkuse as main transcriptc.845+139A>G intron_variant NP_001258855.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
BCKDKENST00000219794.11 linkuse as main transcriptc.904A>G p.Ile302Val missense_variant 10/121 NM_005881.4 ENSP00000219794 P1O14874-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152194
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000795
AC:
2
AN:
251466
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135916
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000547
AC:
8
AN:
1461862
Hom.:
0
Cov.:
33
AF XY:
0.00000963
AC XY:
7
AN XY:
727238
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000630
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152194
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74346
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Nov 18, 2017- -
Branched-chain keto acid dehydrogenase kinase deficiency Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsOct 31, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.025
T
BayesDel_noAF
Benign
-0.26
CADD
Uncertain
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.14
T;.;T
Eigen
Uncertain
0.44
Eigen_PC
Uncertain
0.57
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.91
.;D;D
M_CAP
Benign
0.010
T
MetaRNN
Benign
0.26
T;T;T
MetaSVM
Benign
-0.96
T
MutationAssessor
Benign
0.65
N;N;N
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Uncertain
0.59
T
PROVEAN
Benign
-0.52
N;N;N
REVEL
Benign
0.19
Sift
Benign
0.25
T;T;T
Sift4G
Benign
0.26
T;T;T
Polyphen
0.88
P;.;P
Vest4
0.39
MutPred
0.52
Gain of catalytic residue at I302 (P = 0.0564);Gain of catalytic residue at I302 (P = 0.0564);Gain of catalytic residue at I302 (P = 0.0564);
MVP
0.39
MPC
1.2
ClinPred
0.55
D
GERP RS
6.1
Varity_R
0.080
gMVP
0.43

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs201164597; hg19: chr16-31122679; API