20-62754852-G-T

Position:

• chr20-62754852-G-T

Variant summary

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

The NM_002531.3(NTSR1):​c.882G>T​(p.Arg294Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000688 in 1,454,044 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: NTSR1 NM_002531.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -1.42

Genes affected

NTSR1 (HGNC:8039): (neurotensin receptor 1) Neurotensin receptor 1 belongs to the large superfamily of G-protein coupled receptors. NTSR1 mediates the multiple functions of neurotensin, such as hypotension, hyperglycemia, hypothermia, antinociception, and regulation of intestinal motility and secretion. [provided by RefSeq, Jul 2008]

ACMG classification

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
NTSR1	NM_002531.3	c.882G>T	p.Arg294Ser	missense_variant	2/4	ENST00000370501.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NTSR1	ENST00000370501.4	c.882G>T	p.Arg294Ser	missense_variant	2/4	1	NM_002531.3	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.88e-7 AC: 1 AN: 1454044 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 723666

Gnomad4 AFR exome AF: 0.0000299

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

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 22, 2023

The c.882G>T (p.R294S) alteration is located in exon 2 (coding exon 2) of the NTSR1 gene. This alteration results from a G to T substitution at nucleotide position 882, causing the arginine (R) at amino acid position 294 to be replaced by a serine (S). 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	Pathogenic	0.72
BayesDel_addAF	Benign	0.0085	T
BayesDel_noAF	Benign	-0.23
CADD	Benign	19
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.52	D
Eigen	Benign	-0.63
Eigen_PC	Benign	-0.78
FATHMM_MKL	Benign	0.087	N
LIST_S2	Benign	0.82	T
M_CAP	Benign	0.047	D
MetaRNN	Uncertain	0.68	D
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.2	M
MutationTaster	Benign	0.99	D
PrimateAI	Uncertain	0.58	T
PROVEAN	Uncertain	-2.8	D
REVEL	Benign	0.23
Sift	Uncertain	0.0020	D
Sift4G	Uncertain	0.018	D
Polyphen		0.68	P
Vest4		0.77
MutPred		0.57		Loss of methylation at R294 (P = 0.0279);
MVP		0.40
MPC		0.89
ClinPred		0.88	D
GERP RS		-1.9
Varity_R		0.75
gMVP		0.79

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: chr20-61386204;