4-99310896-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_000668.6(ADH1B):​c.972G>T​(p.Lys324Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000211 in 1,612,444 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

ADH1B
NM_000668.6 missense

Scores

4
5
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.345
Variant links:
Genes affected
ADH1B (HGNC:250): (alcohol dehydrogenase 1B (class I), beta polypeptide) The protein encoded by this gene is a member of the alcohol dehydrogenase family. Members of this enzyme family metabolize a wide variety of substrates, including ethanol, retinol, other aliphatic alcohols, hydroxysteroids, and lipid peroxidation products. This encoded protein, consisting of several homo- and heterodimers of alpha, beta, and gamma subunits, exhibits high activity for ethanol oxidation and plays a major role in ethanol catabolism. Three genes encoding alpha, beta and gamma subunits are tandemly organized in a genomic segment as a gene cluster. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2013]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ADH1BNM_000668.6 linkuse as main transcriptc.972G>T p.Lys324Asn missense_variant 8/9 ENST00000305046.13
ADH1BNM_001286650.2 linkuse as main transcriptc.852G>T p.Lys284Asn missense_variant 9/10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ADH1BENST00000305046.13 linkuse as main transcriptc.972G>T p.Lys324Asn missense_variant 8/91 NM_000668.6 P1P00325-1
ADH1BENST00000625860.2 linkuse as main transcriptc.852G>T p.Lys284Asn missense_variant 8/91 P00325-2
ADH1BENST00000506651.5 linkuse as main transcriptc.852G>T p.Lys284Asn missense_variant 9/102 P00325-2
ADH1BENST00000515694.4 linkuse as main transcriptn.3067G>T non_coding_transcript_exon_variant 8/92

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152120
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:
0.00000400
AC:
1
AN:
250166
Hom.:
0
AF XY:
0.00000740
AC XY:
1
AN XY:
135148
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:
0.00000882
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000226
AC:
33
AN:
1460324
Hom.:
0
Cov.:
31
AF XY:
0.0000179
AC XY:
13
AN XY:
726384
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:
0.0000117
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000261
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152120
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74318
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:
0.0000468
Hom.:
0
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.00000824
AC:
1

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 GeneticsMar 06, 2023The c.972G>T (p.K324N) alteration is located in exon 8 (coding exon 8) of the ADH1B gene. This alteration results from a G to T substitution at nucleotide position 972, causing the lysine (K) at amino acid position 324 to be replaced by an asparagine (N). 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
Pathogenic
0.77
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.56
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Benign
0.012
.;T;T;.
Eigen
Benign
-0.21
Eigen_PC
Benign
-0.43
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Uncertain
0.94
.;D;.;D
M_CAP
Benign
0.020
T
MetaRNN
Uncertain
0.47
T;T;T;T
MetaSVM
Benign
-1.1
T
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.50
T
PROVEAN
Pathogenic
-4.8
D;.;.;.
REVEL
Benign
0.23
Sift
Pathogenic
0.0
D;.;.;.
Sift4G
Pathogenic
0.0
D;D;D;.
Vest4
0.58
MutPred
0.68
Loss of methylation at K324 (P = 0.002);.;.;Loss of methylation at K324 (P = 0.002);
MVP
0.33
MPC
0.76
ClinPred
0.99
D
GERP RS
-2.2
gMVP
0.72

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.18
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: rs370031363; hg19: chr4-100232053; API