rs1662060

Positions:

• chr4-99338684-T-C

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_000669.5(ADH1C):​c.1103+893A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.309 in 147,038 control chromosomes in the GnomAD database, including 8,470 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.31 (8470 hom., cov: 23)
• Consequence: ADH1C NM_000669.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0510

Genes affected

ADH1C (HGNC:251): (alcohol dehydrogenase 1C (class I), gamma polypeptide) This gene encodes class I alcohol dehydrogenase, gamma subunit, which 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. Class I alcohol dehydrogenase, consisting of several homo- and heterodimers of alpha, beta, and gamma subunits, exhibits high activity for ethanol oxidation to acetaldehyde, thus playing 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. An association between ADH1C polymorphism and alcohol dependence has not been established. [provided by RefSeq, Sep 2019]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.89).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.406 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ADH1C	NM_000669.5	c.1103+893A>G		intron_variant		ENST00000515683.6	NP_000660.1
ADH1C	NR_133005.2	n.1130+893A>G		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ADH1C	ENST00000515683.6	c.1103+893A>G		intron_variant		1	NM_000669.5	ENSP00000426083	P1

Frequencies

GnomAD3 genomes AF: 0.309 AC: 45461 AN: 146922 Hom.: 8463 Cov.: 23

Gnomad AFR AF: 0.141

Gnomad AMI AF: 0.226

Gnomad AMR AF: 0.284

Gnomad ASJ AF: 0.272

Gnomad EAS AF: 0.0808

Gnomad SAS AF: 0.284

Gnomad FIN AF: 0.509

Gnomad MID AF: 0.247

Gnomad NFE AF: 0.410

Gnomad OTH AF: 0.270

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.309 AC: 45482 AN: 147038 Hom.: 8470 Cov.: 23 AF XY: 0.308 AC XY: 21963 AN XY: 71194

Gnomad4 AFR AF: 0.141

Gnomad4 AMR AF: 0.284

Gnomad4 ASJ AF: 0.272

Gnomad4 EAS AF: 0.0804

Gnomad4 SAS AF: 0.285

Gnomad4 FIN AF: 0.509

Gnomad4 NFE AF: 0.410

Gnomad4 OTH AF: 0.273

Alfa AF: 0.255 Hom.: 788

Bravo AF: 0.287

Asia WGS AF: 0.219 AC: 760 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.89
CADD	Benign	7.3
DANN	Benign	0.66

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

Other links and lift over

dbSNP: rs1662060; hg19: chr4-100259841;