rs7171660

Variant names:

• chr15-26774265-G-A
• rs7171660
• ENST00000541819.6:c.249-1493C>T

Variant summary

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

The ENST00000541819.6(GABRB3):​c.249-1493C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.892 in 151,784 control chromosomes in the GnomAD database, including 60,796 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 0.89 (60796 hom., cov: 31)
• Consequence: GABRB3 ENST00000541819.6 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0370

Genes affected

GABRB3 (HGNC:4083): (gamma-aminobutyric acid type A receptor subunit beta3) This gene encodes a member of the ligand-gated ionic channel family. The encoded protein is one the subunits of a multi-subunit chloride channel that serves as the receptor for gamma-aminobutyric acid, a major inhibitory neurotransmitter of the mammalian nervous system. This gene is located on the long arm of chromosome 15 in a cluster with two other genes encoding related subunits of the family. This gene may be associated with the pathogenesis of several disorders including Angelman syndrome, Prader-Willi syndrome, nonsyndromic orofacial clefts, epilepsy and autism. Alternatively spliced transcript variants encoding distinct isoforms have been described. [provided by RefSeq, Jul 2013]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.82).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.976 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GABRB3	ENST00000541819.6	c.249-1493C>T		intron_variant	Intron 2 of 9	1		ENSP00000442408.2
GABRB3	ENST00000557641.5	n.453-1493C>T		intron_variant	Intron 1 of 3	5

Frequencies

GnomAD3 genomes AF: 0.892 AC: 135313 AN: 151668 Hom.: 60760 Cov.: 31

Gnomad AFR AF: 0.774

Gnomad AMI AF: 0.809

Gnomad AMR AF: 0.928

Gnomad ASJ AF: 0.951

Gnomad EAS AF: 0.998

Gnomad SAS AF: 0.983

Gnomad FIN AF: 0.943

Gnomad MID AF: 0.873

Gnomad NFE AF: 0.932

Gnomad OTH AF: 0.900

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

GnomAD4 genome AF: 0.892 AC: 135405 AN: 151784 Hom.: 60796 Cov.: 31 AF XY: 0.895 AC XY: 66434 AN XY: 74202

Gnomad4 AFR AF: 0.774

Gnomad4 AMR AF: 0.928

Gnomad4 ASJ AF: 0.951

Gnomad4 EAS AF: 0.998

Gnomad4 SAS AF: 0.983

Gnomad4 FIN AF: 0.943

Gnomad4 NFE AF: 0.932

Gnomad4 OTH AF: 0.901

Alfa AF: 0.900 Hom.: 7940

Bravo AF: 0.884

Asia WGS AF: 0.973 AC: 3382 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.82
CADD	Benign	4.4
DANN	Benign	0.57

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs7171660; hg19: chr15-27019412;