3-197512079-T-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_203314.3(BDH1):​c.848A>T​(p.Lys283Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000682 in 1,614,080 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000070 ( 1 hom. )

Consequence

BDH1
NM_203314.3 missense

Scores

2
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.192
Variant links:
Genes affected
BDH1 (HGNC:1027): (3-hydroxybutyrate dehydrogenase 1) This gene encodes a member of the short-chain dehydrogenase/reductase gene family. The encoded protein forms a homotetrameric lipid-requiring enzyme of the mitochondrial membrane and has a specific requirement for phosphatidylcholine for optimal enzymatic activity. The encoded protein catalyzes the interconversion of acetoacetate and (R)-3-hydroxybutyrate, the two major ketone bodies produced during fatty acid catabolism. Alternatively spliced transcript variants encoding the same protein have been described. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.036540657).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
BDH1NM_203314.3 linkuse as main transcriptc.848A>T p.Lys283Met missense_variant 8/8 ENST00000392379.6 NP_976059.1 Q02338A0A384MTY4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
BDH1ENST00000392379.6 linkuse as main transcriptc.848A>T p.Lys283Met missense_variant 8/85 NM_203314.3 ENSP00000376184.1 Q02338

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152208
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00202
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000111
AC:
28
AN:
251466
Hom.:
0
AF XY:
0.0000957
AC XY:
13
AN XY:
135910
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00169
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000615
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.0000705
AC:
103
AN:
1461872
Hom.:
1
Cov.:
31
AF XY:
0.0000729
AC XY:
53
AN XY:
727240
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00245
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000225
Gnomad4 OTH exome
AF:
0.000182
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152208
Hom.:
0
Cov.:
33
AF XY:
0.0000403
AC XY:
3
AN XY:
74350
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00202
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000248
Hom.:
0
Bravo
AF:
0.0000680
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.0000741
AC:
9
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000119

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsApr 08, 2022The c.848A>T (p.K283M) alteration is located in exon 8 (coding exon 6) of the BDH1 gene. This alteration results from a A to T substitution at nucleotide position 848, causing the lysine (K) at amino acid position 283 to be replaced by a methionine (M). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.16
BayesDel_addAF
Benign
-0.045
T
BayesDel_noAF
Benign
-0.15
CADD
Benign
11
DANN
Benign
0.93
DEOGEN2
Benign
0.30
T;T;T;T
Eigen
Benign
-0.92
Eigen_PC
Benign
-0.98
FATHMM_MKL
Benign
0.40
N
M_CAP
Uncertain
0.12
D
MetaRNN
Benign
0.037
T;T;T;T
MetaSVM
Benign
-0.47
T
MutationAssessor
Benign
1.7
L;L;L;.
PrimateAI
Benign
0.25
T
PROVEAN
Benign
-1.2
N;N;N;N
REVEL
Uncertain
0.38
Sift
Benign
0.099
T;T;T;T
Sift4G
Benign
0.19
T;T;T;T
Polyphen
0.31
B;B;B;.
Vest4
0.29
MVP
0.86
MPC
0.63
ClinPred
0.040
T
GERP RS
-8.4
Varity_R
0.070
gMVP
0.46

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.

Other links and lift over

dbSNP: rs140040785; hg19: chr3-197238950; API