chr5-161548050-G-T

Variant names:

• chr5-161548050-G-T
• rs1581076957
• ENST00000520240.5:c.-314C>A

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 2P and 6B. PM2 BP4_Strong BP6_Moderate

The ENST00000520240.5(GABRB2):​c.-314C>A variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: GABRB2 ENST00000520240.5 5_prime_UTR
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 0.144
• Publications: 0 publications found

Genes affected

GABRB2 (HGNC:4082): (gamma-aminobutyric acid type A receptor subunit beta2) The gamma-aminobutyric acid (GABA) A receptor is a multisubunit chloride channel that mediates the fastest inhibitory synaptic transmission in the central nervous system. This gene encodes GABA A receptor, beta 2 subunit. It is mapped to chromosome 5q34 in a cluster comprised of genes encoding alpha 1 and gamma 2 subunits of the GABA A receptor. Alternative splicing of this gene generates 2 transcript variants, differing by a 114 bp insertion. [provided by RefSeq, Jul 2008]

GABRA6 (HGNC:4080): (gamma-aminobutyric acid type A receptor subunit alpha6) GABA is the major inhibitory neurotransmitter in the mammalian brain where it acts at GABA-A receptors, which are ligand-gated chloride channels. Chloride conductance of these channels can be modulated by agents such as benzodiazepines that bind to the GABA-A receptor. At least 16 distinct subunits of GABA-A receptors have been identified. [provided by RefSeq, Jul 2008]

ACMG classification

Our verdict: Likely_benign. The variant received -4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.87).
• BP6: Variant 5-161548050-G-T is Benign according to our data. Variant chr5-161548050-G-T is described in ClinVar as Likely_benign. ClinVar VariationId is 681398.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000520240.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GABRB2	NM_021911.3		c.-153+9C>A		intron	N/A	NP_068711.1	P47870-2
	GABRB2	NM_000813.3		c.-153+9C>A		intron	N/A	NP_000804.1	P47870-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GABRB2	ENST00000520240.5	TSL:1	c.-314C>A		5_prime_UTR	Exon 1 of 10	ENSP00000429320.1	P47870-1
	GABRB2	ENST00000353437.10	TSL:1	c.-153+9C>A		intron	N/A	ENSP00000274546.6	P47870-1
	GABRB2	ENST00000517901.5	TSL:5	c.-250+9C>A		intron	N/A	ENSP00000430532.1	E7EV50

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 582 Hom.: 0 Cov.: 0 AF XY: 0.00 AC XY: 0 AN XY: 444

African (AFR) AF: 0.00 AC: 0 AN: 10

American (AMR) AF: 0.00 AC: 0 AN: 8

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 6

East Asian (EAS) AF: 0.00 AC: 0 AN: 18

South Asian (SAS) AF: 0.00 AC: 0 AN: 4

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 8

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 2

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 498

Other (OTH) AF: 0.00 AC: 0 AN: 28

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

ClinVar

ClinVar submissions

Significance: Likely benign

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	-	1	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.87
CADD	Benign	4.8
DANN	Benign	0.70
PhyloP100		0.14
PromoterAI		0.045	Neutral

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

Other links and lift over

dbSNP: rs1581076957; hg19: chr5-160975056;