chr20-23035533-C-A

Variant summary

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

The NM_001052.4(SSTR4):​c.50C>A​(p.Thr17Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. T17T) has been classified as Benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

SSTR4
NM_001052.4 missense

Scores

1
1
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.364
Variant links:
Genes affected
SSTR4 (HGNC:11333): (somatostatin receptor 4) 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. SSTR4 is a member of the superfamily of receptors having seven transmembrane segments and is expressed in highest levels in fetal and adult brain and lung. [provided by RefSeq, Jul 2008]

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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=0.15071422).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SSTR4NM_001052.4 linkuse as main transcriptc.50C>A p.Thr17Lys missense_variant 1/1 ENST00000255008.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SSTR4ENST00000255008.5 linkuse as main transcriptc.50C>A p.Thr17Lys missense_variant 1/1 NM_001052.4 P1
ENST00000440921.6 linkuse as main transcriptn.827-2690C>A intron_variant, non_coding_transcript_variant 3

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1433090
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
712626
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

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 GeneticsAug 02, 2023The c.50C>A (p.T17K) alteration is located in exon 1 (coding exon 1) of the SSTR4 gene. This alteration results from a C to A substitution at nucleotide position 50, causing the threonine (T) at amino acid position 17 to be replaced by a lysine (K). 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
0.14
BayesDel_addAF
Benign
-0.088
T
BayesDel_noAF
Benign
-0.36
CADD
Benign
6.7
DANN
Benign
0.89
DEOGEN2
Benign
0.072
T
Eigen
Benign
-0.73
Eigen_PC
Benign
-0.82
FATHMM_MKL
Benign
0.13
N
LIST_S2
Benign
0.26
T
M_CAP
Uncertain
0.096
D
MetaRNN
Benign
0.15
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.69
N
MutationTaster
Benign
1.0
N
PrimateAI
Pathogenic
0.82
D
PROVEAN
Benign
-0.90
N
REVEL
Benign
0.11
Sift
Benign
0.085
T
Sift4G
Benign
0.091
T
Polyphen
0.68
P
Vest4
0.091
MutPred
0.23
Gain of methylation at T17 (P = 0.0077);
MVP
0.55
MPC
0.52
ClinPred
0.18
T
GERP RS
2.7
Varity_R
0.077
gMVP
0.28

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr20-23016170; API