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GeneBe

9-136334541-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001145638.3(GPSM1):c.163G>A(p.Val55Met) variant causes a missense change. The variant allele was found at a frequency of 0.0000062 in 1,613,340 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 34)
Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

GPSM1
NM_001145638.3 missense

Scores

4
8
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.70
Variant links:
Genes affected
GPSM1 (HGNC:17858): (G protein signaling modulator 1) G-protein signaling modulators (GPSMs) play diverse functional roles through their interaction with G-protein subunits. This gene encodes a receptor-independent activator of G protein signaling, which is one of several factors that influence the basal activity of G-protein signaling systems. The protein contains seven tetratricopeptide repeats in its N-terminal half and four G-protein regulatory (GPR) motifs in its C-terminal half. Multiple alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2011]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GPSM1NM_001145638.3 linkuse as main transcriptc.163G>A p.Val55Met missense_variant 2/14 ENST00000440944.6
GPSM1NM_015597.6 linkuse as main transcriptc.163G>A p.Val55Met missense_variant 2/9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GPSM1ENST00000440944.6 linkuse as main transcriptc.163G>A p.Val55Met missense_variant 2/145 NM_001145638.3 P1
GPSM1ENST00000616132.4 linkuse as main transcriptc.163G>A p.Val55Met missense_variant 2/91
GPSM1ENST00000354753.7 linkuse as main transcriptc.259G>A p.Val87Met missense_variant 2/145

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152262
Hom.:
0
Cov.:
34
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:
0.000384
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
GnomAD3 exomes
AF:
0.0000440
AC:
11
AN:
250056
Hom.:
0
AF XY:
0.0000516
AC XY:
7
AN XY:
135662
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000599
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000548
AC:
8
AN:
1460960
Hom.:
0
Cov.:
33
AF XY:
0.00000688
AC XY:
5
AN XY:
726828
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000202
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152380
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
74508
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000385
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756
ExAC
AF:
0.0000330
AC:
4

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsMay 03, 2023The c.163G>A (p.V55M) alteration is located in exon 2 (coding exon 2) of the GPSM1 gene. This alteration results from a G to A substitution at nucleotide position 163, causing the valine (V) at amino acid position 55 to be replaced by a methionine (M). 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
Uncertain
0.45
BayesDel_addAF
Benign
-0.075
T
BayesDel_noAF
Uncertain
0.020
Cadd
Uncertain
24
Dann
Pathogenic
1.0
Eigen
Uncertain
0.53
Eigen_PC
Uncertain
0.48
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Pathogenic
0.98
D;D;D
M_CAP
Pathogenic
0.29
D
MetaRNN
Uncertain
0.44
T;T;T
MetaSVM
Uncertain
0.19
D
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Pathogenic
0.83
D
Sift4G
Uncertain
0.0060
D;D;.
Vest4
0.63
MutPred
0.68
Gain of loop (P = 0.1069);Gain of loop (P = 0.1069);.;
MVP
0.84
MPC
0.63
ClinPred
0.33
T
GERP RS
4.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.6
gMVP
0.32

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs552621174; hg19: chr9-139228998; API