X-14690828-G-T

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PS1_ModeratePM1PM2PP3PP5

The NM_002063.4(GLRA2):​c.1049G>T​(p.Arg350Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000457 in 1,095,067 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 1 hemizygotes in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars). Another nucleotide change resulting in same amino acid change has been previously reported as Likely pathogenicin UniProt.

Frequency

Genomes: not found (cov: 23)
Exomes 𝑓: 0.0000046 ( 0 hom. 1 hem. )

Consequence

GLRA2
NM_002063.4 missense

Scores

6
9
2

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 9.90
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]
FANCB (HGNC:3583): (FA complementation group B) This gene encodes a member of the Fanconi anemia complementation group B. This protein is assembled into a nucleoprotein complex that is involved in the repair of DNA lesions. Mutations in this gene can cause chromosome instability and VACTERL syndrome with hydrocephalus. [provided by RefSeq, Apr 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PS1
Transcript NM_002063.4 (GLRA2) is affected with MISSENSE_VARIANT having same AA change as one Pathogenic present in UniProt
PM1
In a mutagenesis_site No effect on the kinetics of inhibitory post-synaptic currents. (size 0) in uniprot entity GLRA2_HUMAN
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.787
PP5
Variant X-14690828-G-T is Pathogenic according to our data. Variant chrX-14690828-G-T is described in ClinVar as [Pathogenic]. Clinvar id is 1686860.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GLRA2NM_002063.4 linkuse as main transcriptc.1049G>T p.Arg350Leu missense_variant 8/9 ENST00000218075.9 NP_002054.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GLRA2ENST00000218075.9 linkuse as main transcriptc.1049G>T p.Arg350Leu missense_variant 8/91 NM_002063.4 ENSP00000218075 A1P23416-1

Frequencies

GnomAD3 genomes
Cov.:
23
GnomAD4 exome
AF:
0.00000457
AC:
5
AN:
1095067
Hom.:
0
Cov.:
29
AF XY:
0.00000277
AC XY:
1
AN XY:
360511
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000596
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
23
Bravo
AF:
0.0000113
EpiCase
AF:
0.0000546
EpiControl
AF:
0.00

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Intellectual developmental disorder, X-linked, syndromic, Pilorge type Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMAug 01, 2011- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.62
BayesDel_addAF
Pathogenic
0.21
D
BayesDel_noAF
Uncertain
0.060
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.75
.;D;.
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.99
D;D;D
M_CAP
Uncertain
0.26
D
MetaRNN
Pathogenic
0.79
D;D;D
MetaSVM
Uncertain
0.41
D
MutationAssessor
Uncertain
2.0
.;M;M
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Pathogenic
0.89
D
PROVEAN
Uncertain
-3.4
D;D;D
REVEL
Uncertain
0.59
Sift
Benign
0.17
T;T;T
Sift4G
Uncertain
0.038
D;D;D
Polyphen
0.99, 0.036
.;D;B
Vest4
0.64
MutPred
0.50
.;Loss of disorder (P = 0.0215);Loss of disorder (P = 0.0215);
MVP
0.91
MPC
2.4
ClinPred
0.98
D
GERP RS
5.0
Varity_R
0.37
gMVP
0.91

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: rs761094724; hg19: chrX-14708950; API