chrX-14581319-A-G

Variant summary

Our verdict is Likely pathogenic. Variant got 9 ACMG points: 9P and 0B. PS1_ModeratePM2PP3_StrongPP5

The NM_002063.4(GLRA2):ā€‹c.407A>Gā€‹(p.Asn136Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000166 in 1,203,535 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: š‘“ 0.0000090 ( 0 hom., 0 hem., cov: 22)
Exomes š‘“: 9.2e-7 ( 0 hom. 1 hem. )

Consequence

GLRA2
NM_002063.4 missense

Scores

12
4
1

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 9.23
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 9 ACMG points.

PS1
Transcript NM_002063.4 (GLRA2) is affected with MISSENSE_VARIANT having same AA change as one Pathogenic present in UniProt
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.981
PP5
Variant X-14581319-A-G is Pathogenic according to our data. Variant chrX-14581319-A-G is described in ClinVar as [Pathogenic]. Clinvar id is 1686857.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.407A>G p.Asn136Ser missense_variant 4/9 ENST00000218075.9 NP_002054.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GLRA2ENST00000218075.9 linkuse as main transcriptc.407A>G p.Asn136Ser missense_variant 4/91 NM_002063.4 ENSP00000218075 A1P23416-1
GLRA2ENST00000355020.9 linkuse as main transcriptc.407A>G p.Asn136Ser missense_variant 4/91 ENSP00000347123 P4P23416-2
GLRA2ENST00000415367.2 linkuse as main transcriptn.658A>G non_coding_transcript_exon_variant 4/93
GLRA2ENST00000443437.6 linkuse as main transcriptc.*334A>G 3_prime_UTR_variant, NMD_transcript_variant 6/112 ENSP00000387756 P23416-3

Frequencies

GnomAD3 genomes
AF:
0.00000896
AC:
1
AN:
111649
Hom.:
0
Cov.:
22
AF XY:
0.00
AC XY:
0
AN XY:
33831
show subpopulations
Gnomad AFR
AF:
0.0000326
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
GnomAD4 exome
AF:
9.16e-7
AC:
1
AN:
1091886
Hom.:
0
Cov.:
29
AF XY:
0.00000280
AC XY:
1
AN XY:
357464
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:
0.0000185
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000896
AC:
1
AN:
111649
Hom.:
0
Cov.:
22
AF XY:
0.00
AC XY:
0
AN XY:
33831
show subpopulations
Gnomad4 AFR
AF:
0.0000326
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:
0.00000378

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 onlyOMIMApr 26, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.63
BayesDel_addAF
Pathogenic
0.19
D
BayesDel_noAF
Uncertain
0.040
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.91
.;D;.;.
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
1.0
D;D;D;D
M_CAP
Pathogenic
0.80
D
MetaRNN
Pathogenic
0.98
D;D;D;D
MetaSVM
Pathogenic
0.90
D
MutationAssessor
Pathogenic
3.7
.;H;H;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.68
T
PROVEAN
Pathogenic
-4.9
D;D;D;D
REVEL
Pathogenic
0.88
Sift
Pathogenic
0.0
D;D;D;D
Sift4G
Uncertain
0.0020
D;D;D;D
Polyphen
0.98, 1.0
.;D;D;.
Vest4
0.93
MutPred
0.91
.;Gain of glycosylation at N136 (P = 0.0342);Gain of glycosylation at N136 (P = 0.0342);.;
MVP
1.0
MPC
2.1
ClinPred
1.0
D
GERP RS
5.6
Varity_R
0.89
gMVP
0.94

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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: rs1276905604; hg19: chrX-14599441; API