dbSNP rs199797447: GLRA2:p.Ala108Ala (chrX-14581236-G-A) – ACMG Classification: Benign (-10 pts)

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6BP7BS2

The NM_002063.4(GLRA2):c.324G>A(p.Ala108Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000211 in 1,187,078 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 9 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.000027 ( 0 hom., 0 hem., cov: 22)

Exomes 𝑓: 0.000020 ( 0 hom. 9 hem. )

Consequence

GLRA2
NM_002063.4 synonymous

Scores

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 0.0720

Variant links:

Genes affected

GLRA2 (HGNC:4327): (glycine receptor alpha 2) The glycine receptor consists of two subunits, alpha and beta, and acts as a pentamer. The protein encoded by this gene is an alpha subunit and can bind strychnine. Several transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Jan 2010]

GLRA2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.47).

BP6

Variant X-14581236-G-A is Benign according to our data. Variant chrX-14581236-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 3039889.Status of the report is no_assertion_criteria_provided, 0 stars.

BP7

Synonymous conserved (PhyloP=0.072 with no splicing effect.

BS2

High Hemizygotes in GnomAdExome4 at 9 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GLRA2	NM_002063.4 link	c.324G>A	p.Ala108Ala	synonymous_variant	Exon 4 of 9	ENST00000218075.9	NP_002054.1	P23416-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GLRA2	ENST00000218075.9 link	c.324G>A	p.Ala108Ala	synonymous_variant	Exon 4 of 9	1	NM_002063.4	ENSP00000218075.4		P23416-1

Frequencies

GnomAD3 genomes

AF:

0.0000269

AC:

AN:

111518

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

33692

show subpopulations

Gnomad AFR

AF:

0.0000980

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000437

AC:

AN:

183178

Hom.:

AF XY:

0.0000295

AC XY:

AN XY:

67694

show subpopulations

Gnomad AFR exome

AF:

0.000152

Gnomad AMR exome

AF:

0.000109

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000144

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000122

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000205

AC:

AN:

1075505

Hom.:

Cov.:

AF XY:

0.0000263

AC XY:

AN XY:

342651

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000853

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000996

Gnomad4 SAS exome

AF:

0.0000746

Gnomad4 FIN exome

AF:

0.0000247

Gnomad4 NFE exome

AF:

0.0000122

Gnomad4 OTH exome

AF:

0.0000221

GnomAD4 genome

AF:

0.0000269

AC:

AN:

111573

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

33757

show subpopulations

Gnomad4 AFR

AF:

0.0000978

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:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000793

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

GLRA2-related disorder

Benign:1

Sep 10, 2019

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.47

CADD

Benign

6.4

DANN

Benign

0.70

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over