rs1554189815
Positions:
Variant summary
Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM1PM2PP3_Moderate
The NM_183050.4(BCKDHB):c.517G>T(p.Asp173Tyr) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: not found (cov: 32)
Consequence
BCKDHB
NM_183050.4 missense
NM_183050.4 missense
Scores
7
8
3
Clinical Significance
Conservation
PhyloP100: 5.73
Genes affected
BCKDHB (HGNC:987): (branched chain keto acid dehydrogenase E1 subunit beta) 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 this gene have been associated with maple syrup urine disease (MSUD), type 1B, a disease characterized by a maple syrup odor to the urine in addition to mental and physical retardation and feeding problems. Alternative splicing at this locus results in multiple transcript variants. [provided by RefSeq, Jan 2016]
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ACMG classification
Classification made for transcript
Verdict is Likely_pathogenic. Variant got 6 ACMG points.
PM1
?
In a hotspot region, there are 4 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 4 uncertain in NM_183050.4
PM2
?
Very rare variant in population databases, with high coverage;
PP3
?
MetaRNN computational evidence supports a deleterious effect, 0.881
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
BCKDHB | NM_183050.4 | c.517G>T | p.Asp173Tyr | missense_variant | 5/10 | ENST00000320393.9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
BCKDHB | ENST00000320393.9 | c.517G>T | p.Asp173Tyr | missense_variant | 5/10 | 1 | NM_183050.4 | P1 | |
BCKDHB | ENST00000356489.9 | c.517G>T | p.Asp173Tyr | missense_variant | 5/11 | 1 | P1 | ||
BCKDHB | ENST00000369760.8 | c.517G>T | p.Asp173Tyr | missense_variant | 5/6 | 3 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 genomes
?
Cov.:
32
GnomAD4 exome Cov.: 34
GnomAD4 exome
Cov.:
34
GnomAD4 genome ? Cov.: 32
GnomAD4 genome
?
Cov.:
32
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Maple syrup urine disease Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Counsyl | Oct 07, 2017 | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Uncertain
CADD
Pathogenic
DANN
Uncertain
Eigen
Pathogenic
Eigen_PC
Pathogenic
FATHMM_MKL
Uncertain
D
LIST_S2
Pathogenic
D;.;D
M_CAP
Uncertain
D
MetaRNN
Pathogenic
D;D;D
MetaSVM
Pathogenic
D
MutationAssessor
Benign
L;L;L
MutationTaster
Benign
D;D;D;D
PrimateAI
Uncertain
T
PROVEAN
Uncertain
D;D;D
REVEL
Pathogenic
Sift
Uncertain
D;D;D
Sift4G
Uncertain
D;D;D
Polyphen
0.99
.;D;D
Vest4
MutPred
Loss of helix (P = 0.0167);Loss of helix (P = 0.0167);Loss of helix (P = 0.0167);
MVP
MPC
0.78
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at