chr1-27394100-T-A

Position:

• chr1-27394100-T-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_005281.4(GPR3):​c.302T>A​(p.Phe101Tyr) 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 (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: GPR3 NM_005281.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.42

Genes affected

GPR3 (HGNC:4484): (G protein-coupled receptor 3) This gene is a member of the G protein-coupled receptor family and is found in the cell membrane. G protein-coupled receptors, characterized by a seven transmembrane domain motif, are involved in translating outside signals into G protein mediated intracellular effects. The encoded protein activates adenylate cyclase and modulates amyloid-beta production in a mouse model, suggesting that it may play a role in Alzheimer's disease. [provided by RefSeq, Oct 2012]

ACMG classification

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=0.12543324).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GPR3	NM_005281.4	c.302T>A	p.Phe101Tyr	missense_variant	2/2	ENST00000374024.4	NP_005272.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
GPR3	ENST00000374024.4	c.302T>A	p.Phe101Tyr	missense_variant	2/2	1	NM_005281.4	ENSP00000363136.3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

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

Aug 26, 2024

The c.302T>A (p.F101Y) alteration is located in exon 2 (coding exon 1) of the GPR3 gene. This alteration results from a T to A substitution at nucleotide position 302, causing the phenylalanine (F) at amino acid position 101 to be replaced by a tyrosine (Y). 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	0.15
BayesDel_addAF	Benign	-0.20	T
BayesDel_noAF	Benign	-0.52
CADD	Benign	18
DANN	Benign	0.87
DEOGEN2	Benign	0.044	T
Eigen	Benign	-0.66
Eigen_PC	Benign	-0.32
FATHMM_MKL	Benign	0.75	D
LIST_S2	Benign	0.51	T
M_CAP	Benign	0.0040	T
MetaRNN	Benign	0.13	T
MetaSVM	Benign	-0.98	T
MutationAssessor	Benign	-1.7	N
PrimateAI	Uncertain	0.70	T
PROVEAN	Benign	1.3	N
REVEL	Benign	0.11
Sift	Benign	1.0	T
Sift4G	Benign	1.0	T
Polyphen		0.0	B
Vest4		0.20
MutPred		0.67		Gain of helix (P = 0.132);
MVP		0.56
MPC		0.46
ClinPred		0.13	T
GERP RS		4.3
Varity_R		0.18
gMVP		0.44

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: chr1-27720604;