dbSNP rs61736656: BCKDHA:p.Ile361Leu (chr19-41423083-A-C) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_000709.4(BCKDHA):c.1081A>C(p.Ile361Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000699 in 1,430,106 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 7.0e-7 ( 0 hom. )

Consequence

BCKDHA
NM_000709.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 8.53

Variant links:

Genes affected

BCKDHA (HGNC:986): (branched chain keto acid dehydrogenase E1 subunit alpha) The branched-chain alpha-keto acid (BCAA) dehydrogenase (BCKD) complex is an innter mitochondrial enzyme complex that catalyzes the second major step in the catabolism of the branched-chain amino acids leucine, isoleucine, and valine. The BCKD complex consists of three catalytic components: a heterotetrameric (alpha2-beta2) branched-chain alpha-keto acid decarboxylase (E1), a dihydrolipoyl transacylase (E2), and a dihydrolipoamide dehydrogenase (E3). This gene encodes the alpha subunit of the decarboxylase (E1) component. Mutations in this gene result in maple syrup urine disease, type IA. Multiple transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Sep 2009]

BCKDHA links:

ENSG00000255730 (HGNC:):

ENSG00000255730 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.914

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BCKDHA	NM_000709.4 link	c.1081A>C	p.Ile361Leu	missense_variant	Exon 8 of 9	ENST00000269980.7	NP_000700.1	P12694-1A0A024R0K3
BCKDHA	NM_001164783.2 link	c.1078A>C	p.Ile360Leu	missense_variant	Exon 8 of 9		NP_001158255.1	P12694Q59EI3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BCKDHA	ENST00000269980.7 link	c.1081A>C	p.Ile361Leu	missense_variant	Exon 8 of 9	1	NM_000709.4	ENSP00000269980.2		P12694-1
ENSG00000255730	ENST00000540732.3 link	c.1183A>C	p.Ile395Leu	missense_variant	Exon 9 of 10	2		ENSP00000443246.1		F5H5P2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000510

AC:

AN:

196186

Hom.:

AF XY:

0.00

AC XY:

AN XY:

105278

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:

0.0000393

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.99e-7

AC:

AN:

1430106

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

708734

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:

0.0000122

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.22

BayesDel_addAF

Pathogenic

0.27

BayesDel_noAF

Pathogenic

0.27

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.46

.;T;.

Eigen

Uncertain

0.30

Eigen_PC

Uncertain

0.45

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.96

D;D;D

M_CAP

Pathogenic

0.29

MetaRNN

Pathogenic

0.91

D;D;D

MetaSVM

Uncertain

0.77

MutationAssessor

Benign

1.6

.;L;.

PrimateAI

Uncertain

0.69

PROVEAN

Benign

-1.7

N;N;N

REVEL

Pathogenic

0.74

Sift

Benign

0.14

T;T;T

Sift4G

Benign

0.12

T;T;T

Polyphen

0.32

.;B;.

Vest4

0.77

MutPred

0.80

Gain of catalytic residue at I395 (P = 0.0581);.;.;

MVP

0.92

MPC

1.3

ClinPred

0.56

GERP RS

5.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.8

Varity_R

0.64

gMVP

0.75

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

LitVar

Other links and lift over