3-7578695-C-T

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BA1

The NM_000844.4(GRM7):​c.1789C>T​(p.Leu597=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.265 in 1,613,472 control chromosomes in the GnomAD database, including 60,849 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.23 ( 4818 hom., cov: 32)
Exomes 𝑓: 0.27 ( 56031 hom. )

Consequence

GRM7
NM_000844.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 0.971
Variant links:
Genes affected
GRM7 (HGNC:4599): (glutamate metabotropic receptor 7) L-glutamate is the major excitatory neurotransmitter in the central nervous system, and it 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 metabotropic glutamate receptors are a family of G protein-coupled receptors that have been divided into three groups on the basis of sequence homology, putative signal transduction mechanisms, and pharmacologic properties. Group I includes GRM1 and GRM5, and these receptors have been shown to activate phospholipase C. Group II includes GRM2 and GRM3, while Group III includes GRM4, GRM6, GRM7 and GRM8. Group II and III receptors are linked to the inhibition of the cyclic AMP cascade but differ in their agonist selectivities. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jun 2009]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -19 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.39).
BP6
Variant 3-7578695-C-T is Benign according to our data. Variant chr3-7578695-C-T is described in ClinVar as [Benign]. Clinvar id is 1168983.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=0.971 with no splicing effect.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.283 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GRM7NM_000844.4 linkuse as main transcriptc.1789C>T p.Leu597= synonymous_variant 8/10 ENST00000357716.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GRM7ENST00000357716.9 linkuse as main transcriptc.1789C>T p.Leu597= synonymous_variant 8/101 NM_000844.4 P1Q14831-1

Frequencies

GnomAD3 genomes
AF:
0.227
AC:
34549
AN:
151912
Hom.:
4807
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0833
Gnomad AMI
AF:
0.277
Gnomad AMR
AF:
0.253
Gnomad ASJ
AF:
0.224
Gnomad EAS
AF:
0.155
Gnomad SAS
AF:
0.168
Gnomad FIN
AF:
0.447
Gnomad MID
AF:
0.123
Gnomad NFE
AF:
0.286
Gnomad OTH
AF:
0.192
GnomAD3 exomes
AF:
0.257
AC:
64707
AN:
251334
Hom.:
9459
AF XY:
0.254
AC XY:
34472
AN XY:
135838
show subpopulations
Gnomad AFR exome
AF:
0.0778
Gnomad AMR exome
AF:
0.288
Gnomad ASJ exome
AF:
0.240
Gnomad EAS exome
AF:
0.154
Gnomad SAS exome
AF:
0.180
Gnomad FIN exome
AF:
0.440
Gnomad NFE exome
AF:
0.278
Gnomad OTH exome
AF:
0.256
GnomAD4 exome
AF:
0.269
AC:
393615
AN:
1461442
Hom.:
56031
Cov.:
35
AF XY:
0.267
AC XY:
193828
AN XY:
727018
show subpopulations
Gnomad4 AFR exome
AF:
0.0726
Gnomad4 AMR exome
AF:
0.279
Gnomad4 ASJ exome
AF:
0.238
Gnomad4 EAS exome
AF:
0.158
Gnomad4 SAS exome
AF:
0.179
Gnomad4 FIN exome
AF:
0.425
Gnomad4 NFE exome
AF:
0.281
Gnomad4 OTH exome
AF:
0.247
GnomAD4 genome
AF:
0.227
AC:
34579
AN:
152030
Hom.:
4818
Cov.:
32
AF XY:
0.234
AC XY:
17379
AN XY:
74302
show subpopulations
Gnomad4 AFR
AF:
0.0833
Gnomad4 AMR
AF:
0.254
Gnomad4 ASJ
AF:
0.224
Gnomad4 EAS
AF:
0.155
Gnomad4 SAS
AF:
0.169
Gnomad4 FIN
AF:
0.447
Gnomad4 NFE
AF:
0.286
Gnomad4 OTH
AF:
0.191
Alfa
AF:
0.263
Hom.:
10839
Bravo
AF:
0.208
Asia WGS
AF:
0.172
AC:
599
AN:
3478
EpiCase
AF:
0.258
EpiControl
AF:
0.252

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxOct 26, 2021- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 30, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.39
CADD
Benign
7.9
DANN
Benign
0.75

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: rs7614915; hg19: chr3-7620382; COSMIC: COSV63130165; COSMIC: COSV63130165; API