5-153493974-A-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_000827.4(GRIA1):​c.129A>T​(p.Arg43Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,786 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

GRIA1
NM_000827.4 missense

Scores

6
9
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.85
Variant links:
Genes affected
GRIA1 (HGNC:4571): (glutamate ionotropic receptor AMPA type subunit 1) Glutamate receptors are the predominant excitatory neurotransmitter receptors in the mammalian brain and are activated in a variety of normal neurophysiologic processes. These receptors are heteromeric protein complexes with multiple subunits, each possessing transmembrane regions, and all arranged to form a ligand-gated ion channel. The classification of glutamate receptors is based on their activation by different pharmacologic agonists. This gene belongs to a family of alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionate (AMPA) receptors. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.827

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GRIA1NM_000827.4 linkc.129A>T p.Arg43Ser missense_variant 2/16 ENST00000285900.10 NP_000818.2 P42261-1Q59GL5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GRIA1ENST00000285900.10 linkc.129A>T p.Arg43Ser missense_variant 2/161 NM_000827.4 ENSP00000285900.4 P42261-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461786
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727208
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJun 03, 2024The c.129A>T (p.R43S) alteration is located in exon 2 (coding exon 2) of the GRIA1 gene. This alteration results from a A to T substitution at nucleotide position 129, causing the arginine (R) at amino acid position 43 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.64
BayesDel_addAF
Pathogenic
0.32
D
BayesDel_noAF
Pathogenic
0.23
CADD
Uncertain
25
DANN
Benign
0.96
DEOGEN2
Uncertain
0.65
D;.;.;.;.
Eigen
Uncertain
0.32
Eigen_PC
Uncertain
0.32
FATHMM_MKL
Benign
0.73
D
LIST_S2
Pathogenic
0.99
D;D;D;D;D
M_CAP
Uncertain
0.19
D
MetaRNN
Pathogenic
0.83
D;D;D;D;D
MetaSVM
Uncertain
-0.068
T
MutationAssessor
Benign
1.8
L;L;L;.;.
PrimateAI
Uncertain
0.79
T
PROVEAN
Uncertain
-2.8
D;N;D;D;D
REVEL
Pathogenic
0.70
Sift
Uncertain
0.0010
D;T;D;D;D
Sift4G
Uncertain
0.010
D;D;D;D;D
Polyphen
0.73
P;.;P;.;.
Vest4
0.74
MutPred
0.71
Loss of methylation at R43 (P = 0.0368);Loss of methylation at R43 (P = 0.0368);Loss of methylation at R43 (P = 0.0368);.;.;
MVP
0.96
MPC
1.2
ClinPred
0.91
D
GERP RS
3.1
Varity_R
0.59
gMVP
0.84

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
Details are displayed if max score is > 0.2

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr5-152873534; API