17-73170038-T-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001050.3(SSTR2):​c.719T>A​(p.Ile240Asn) variant causes a missense change. The variant allele was found at a frequency of 0.00000821 in 1,461,854 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000082 ( 0 hom. )

Consequence

SSTR2
NM_001050.3 missense

Scores

2
4
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.27
Variant links:
Genes affected
SSTR2 (HGNC:11331): (somatostatin receptor 2) Somatostatin acts at many sites to inhibit the release of many hormones and other secretory proteins. The biologic effects of somatostatin are probably mediated by a family of G protein-coupled receptors that are expressed in a tissue-specific manner. SSTR2 is a member of the superfamily of receptors having seven transmembrane segments and is expressed in highest levels in cerebrum and kidney. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.31823444).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SSTR2NM_001050.3 linkuse as main transcriptc.719T>A p.Ile240Asn missense_variant 2/2 ENST00000357585.4 NP_001041.1 P30874-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SSTR2ENST00000357585.4 linkuse as main transcriptc.719T>A p.Ile240Asn missense_variant 2/21 NM_001050.3 ENSP00000350198.2 P30874-1
ENSG00000264860ENST00000580671.1 linkuse as main transcriptn.312+4750T>A intron_variant 4

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000119
AC:
3
AN:
251382
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135854
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:
0.0000176
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.00000821
AC:
12
AN:
1461854
Hom.:
0
Cov.:
31
AF XY:
0.0000124
AC XY:
9
AN XY:
727216
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:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000809
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.000223
Hom.:
0
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

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 GeneticsMar 28, 2023The c.719T>A (p.I240N) alteration is located in exon 2 (coding exon 1) of the SSTR2 gene. This alteration results from a T to A substitution at nucleotide position 719, causing the isoleucine (I) at amino acid position 240 to be replaced by an asparagine (N). 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
0.31
BayesDel_addAF
Uncertain
0.015
T
BayesDel_noAF
Benign
-0.20
CADD
Uncertain
24
DANN
Benign
0.94
DEOGEN2
Benign
0.40
T
Eigen
Benign
0.070
Eigen_PC
Uncertain
0.26
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.95
D
M_CAP
Benign
0.031
D
MetaRNN
Benign
0.32
T
MetaSVM
Benign
-0.71
T
MutationAssessor
Benign
0.29
N
PrimateAI
Pathogenic
0.91
D
PROVEAN
Benign
-2.0
N
REVEL
Uncertain
0.30
Sift
Benign
0.55
T
Sift4G
Benign
0.50
T
Polyphen
0.0040
B
Vest4
0.57
MutPred
0.54
Loss of stability (P = 0.0021);
MVP
0.77
MPC
0.62
ClinPred
0.27
T
GERP RS
5.6
Varity_R
0.38
gMVP
0.85

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: rs754340993; hg19: chr17-71166177; API