chr4-99313983-C-A

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_000668.6(ADH1B):​c.666G>T​(p.Ala222=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.031 in 1,613,964 control chromosomes in the GnomAD database, including 908 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.029 ( 75 hom., cov: 32)
Exomes 𝑓: 0.031 ( 833 hom. )

Consequence

ADH1B
NM_000668.6 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -2.70
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.59).
BP6
Variant 4-99313983-C-A is Benign according to our data. Variant chr4-99313983-C-A is described in ClinVar as [Benign]. Clinvar id is 769290.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-2.7 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0292 (4451/152230) while in subpopulation AFR AF= 0.035 (1454/41538). AF 95% confidence interval is 0.0335. There are 75 homozygotes in gnomad4. There are 2122 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 75 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ADH1BNM_000668.6 linkuse as main transcriptc.666G>T p.Ala222= synonymous_variant 6/9 ENST00000305046.13
ADH1BNM_001286650.2 linkuse as main transcriptc.546G>T p.Ala182= synonymous_variant 7/10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ADH1BENST00000305046.13 linkuse as main transcriptc.666G>T p.Ala222= synonymous_variant 6/91 NM_000668.6 P1P00325-1

Frequencies

GnomAD3 genomes
AF:
0.0292
AC:
4442
AN:
152112
Hom.:
75
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0349
Gnomad AMI
AF:
0.00219
Gnomad AMR
AF:
0.0146
Gnomad ASJ
AF:
0.0115
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.0135
Gnomad FIN
AF:
0.0345
Gnomad MID
AF:
0.0127
Gnomad NFE
AF:
0.0330
Gnomad OTH
AF:
0.0244
GnomAD3 exomes
AF:
0.0222
AC:
5555
AN:
250462
Hom.:
105
AF XY:
0.0221
AC XY:
2998
AN XY:
135364
show subpopulations
Gnomad AFR exome
AF:
0.0322
Gnomad AMR exome
AF:
0.00825
Gnomad ASJ exome
AF:
0.0113
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.0157
Gnomad FIN exome
AF:
0.0338
Gnomad NFE exome
AF:
0.0293
Gnomad OTH exome
AF:
0.0193
GnomAD4 exome
AF:
0.0312
AC:
45613
AN:
1461734
Hom.:
833
Cov.:
33
AF XY:
0.0305
AC XY:
22203
AN XY:
727170
show subpopulations
Gnomad4 AFR exome
AF:
0.0352
Gnomad4 AMR exome
AF:
0.00915
Gnomad4 ASJ exome
AF:
0.0146
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.0182
Gnomad4 FIN exome
AF:
0.0359
Gnomad4 NFE exome
AF:
0.0346
Gnomad4 OTH exome
AF:
0.0246
GnomAD4 genome
AF:
0.0292
AC:
4451
AN:
152230
Hom.:
75
Cov.:
32
AF XY:
0.0285
AC XY:
2122
AN XY:
74420
show subpopulations
Gnomad4 AFR
AF:
0.0350
Gnomad4 AMR
AF:
0.0146
Gnomad4 ASJ
AF:
0.0115
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.0133
Gnomad4 FIN
AF:
0.0345
Gnomad4 NFE
AF:
0.0330
Gnomad4 OTH
AF:
0.0241
Alfa
AF:
0.0232
Hom.:
20
Bravo
AF:
0.0279

ClinVar

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

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpAug 17, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.59
CADD
Benign
0.61
DANN
Benign
0.56

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: rs2018417; hg19: chr4-100235140; COSMIC: COSV59296113; COSMIC: COSV59296113; API