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GeneBe

9-136337548-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001145638.3(GPSM1):​c.686C>T​(p.Thr229Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000108 in 1,557,556 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000085 ( 0 hom., cov: 34)
Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

GPSM1
NM_001145638.3 missense

Scores

4
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.70
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 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.1637659).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GPSM1NM_001145638.3 linkuse as main transcriptc.686C>T p.Thr229Met missense_variant 5/14 ENST00000440944.6
GPSM1NM_015597.6 linkuse as main transcriptc.686C>T p.Thr229Met missense_variant 5/9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GPSM1ENST00000440944.6 linkuse as main transcriptc.686C>T p.Thr229Met missense_variant 5/145 NM_001145638.3 P1
GPSM1ENST00000616132.4 linkuse as main transcriptc.686C>T p.Thr229Met missense_variant 5/91
GPSM1ENST00000354753.7 linkuse as main transcriptc.782C>T p.Thr261Met missense_variant 5/145

Frequencies

GnomAD3 genomes
AF:
0.0000854
AC:
13
AN:
152176
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000621
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000118
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000971
AC:
16
AN:
164732
Hom.:
0
AF XY:
0.000138
AC XY:
12
AN XY:
87128
show subpopulations
Gnomad AFR exome
AF:
0.000105
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000431
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000214
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000110
AC:
155
AN:
1405266
Hom.:
0
Cov.:
33
AF XY:
0.000120
AC XY:
83
AN XY:
693740
show subpopulations
Gnomad4 AFR exome
AF:
0.0000622
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000818
Gnomad4 SAS exome
AF:
0.0000377
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000129
Gnomad4 OTH exome
AF:
0.000120
GnomAD4 genome
AF:
0.0000854
AC:
13
AN:
152290
Hom.:
0
Cov.:
34
AF XY:
0.0000806
AC XY:
6
AN XY:
74476
show subpopulations
Gnomad4 AFR
AF:
0.0000481
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000621
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000118
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000989
Hom.:
0
Bravo
AF:
0.0000907
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000235
AC:
2
ExAC
AF:
0.0000442
AC:
5

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 GeneticsJan 18, 2023The c.686C>T (p.T229M) alteration is located in exon 5 (coding exon 5) of the GPSM1 gene. This alteration results from a C to T substitution at nucleotide position 686, causing the threonine (T) at amino acid position 229 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
Benign
0.084
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.30
CADD
Benign
21
DANN
Uncertain
1.0
Eigen
Benign
-0.16
Eigen_PC
Benign
-0.17
FATHMM_MKL
Benign
0.040
N
LIST_S2
Uncertain
0.96
D;D;D
M_CAP
Uncertain
0.26
D
MetaRNN
Benign
0.16
T;T;T
MetaSVM
Benign
-0.61
T
MutationTaster
Benign
0.52
N;N;N
PrimateAI
Benign
0.40
T
Sift4G
Uncertain
0.020
D;D;.
Vest4
0.34
MVP
0.82
MPC
0.55
ClinPred
0.14
T
GERP RS
3.2
gMVP
0.46

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs200055599; hg19: chr9-139232005; API