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GeneBe

rs3025919

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP2

The NM_001278064.2(GRM1):c.2223A>T(p.Glu741Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000658 in 152,054 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in same amino acid change has been previously reported as Likely benignin UniProt.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Consequence

GRM1
NM_001278064.2 missense

Scores

3
7
7

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.917
Variant links:
Genes affected
GRM1 (HGNC:4593): (glutamate metabotropic receptor 1) This gene encodes a metabotropic glutamate receptor that functions by activating phospholipase C. L-glutamate is the major excitatory neurotransmitter in the central nervous system and activates both ionotropic and metabotropic glutamate receptors. Glutamatergic neurotransmission is involved in most aspects of normal brain function and can be perturbed in many neuropathologic conditions. The canonical alpha isoform of the encoded protein is a disulfide-linked homodimer whose activity is mediated by a G-protein-coupled phosphatidylinositol-calcium second messenger system. This gene may be associated with many disease states, including schizophrenia, bipolar disorder, depression, and breast cancer. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, May 2013]

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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;
PP2
Missense variant where missense usually causes diseases, GRM1

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GRM1NM_001278064.2 linkuse as main transcriptc.2223A>T p.Glu741Asp missense_variant 7/8 ENST00000282753.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GRM1ENST00000282753.6 linkuse as main transcriptc.2223A>T p.Glu741Asp missense_variant 7/81 NM_001278064.2 P1Q13255-1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152054
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.000478
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251456
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135894
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
Cov.:
34
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152054
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74266
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.000478
Bravo
AF:
0.00000378
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.00000824
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.40
BayesDel_addAF
Pathogenic
0.27
D
BayesDel_noAF
Pathogenic
0.14
Cadd
Benign
21
Dann
Uncertain
1.0
Eigen
Benign
-0.19
Eigen_PC
Benign
-0.15
FATHMM_MKL
Uncertain
0.91
D
M_CAP
Uncertain
0.097
D
MetaRNN
Uncertain
0.71
D;D;D;D;D
MetaSVM
Uncertain
-0.099
T
MutationAssessor
Benign
0.84
L;L;L;L;L
MutationTaster
Benign
1.0
D;D;D;D;D;D
PrimateAI
Pathogenic
0.82
D
PROVEAN
Benign
-2.3
N;D;N;D;N
REVEL
Uncertain
0.64
Sift
Benign
0.040
D;D;D;D;D
Sift4G
Benign
0.29
T;D;T;D;T
Polyphen
0.84
P;D;.;D;P
Vest4
0.75
MutPred
0.54
Loss of sheet (P = 0.1398);Loss of sheet (P = 0.1398);Loss of sheet (P = 0.1398);Loss of sheet (P = 0.1398);Loss of sheet (P = 0.1398);
MVP
0.90
MPC
1.2
ClinPred
0.77
D
GERP RS
1.7
Varity_R
0.57
gMVP
0.90

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: rs3025919; hg19: chr6-146720398; API