chr7-1092618-C-A

Position:

• chr7-1092618-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_001098201.3(GPER1):​c.890C>A​(p.Ser297Tyr) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: GPER1 NM_001098201.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.45

Genes affected

GPER1 (HGNC:4485): (G protein-coupled estrogen receptor 1) This gene encodes a multi-pass membrane protein that localizes to the endoplasmic reticulum and a member of the G-protein coupled receptor 1 family. This receptor binds estrogen and activates multiple downstream signaling pathways, leading to stimulation of adenylate cyclase and an increase in cyclic AMP levels, while also promoting intracellular calcium mobilization and synthesis of phosphatidylinositol 3,4,5-trisphosphate in the nucleus. This protein therefore plays a role in the rapid nongenomic signaling events widely observed following stimulation of cells and tissues with estrogen. This receptor has been shown to play a role in diverse biological processes, including bone and nervous system development, metabolism, cognition, male fertility and uterine function. [provided by RefSeq, Aug 2017]

C7orf50 (HGNC:22421): (chromosome 7 open reading frame 50) Enables RNA binding activity. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

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=0.30394667).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GPER1	NM_001098201.3	c.890C>A	p.Ser297Tyr	missense_variant	2/2	ENST00000397088.4	NP_001091671.1
C7orf50	NM_001318252.2	c.129+34639G>T		intron_variant		ENST00000397098.8	NP_001305181.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
GPER1	ENST00000397088.4	c.890C>A	p.Ser297Tyr	missense_variant	2/2	1	NM_001098201.3	ENSP00000380277	P1
C7orf50	ENST00000397098.8	c.129+34639G>T		intron_variant		1	NM_001318252.2	ENSP00000380286	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 36

GnomAD4 genome Cov.: 33

Bravo AF: 0.00000378

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

Oct 12, 2021

The c.890C>A (p.S297Y) alteration is located in exon 3 (coding exon 1) of the GPER1 gene. This alteration results from a C to A substitution at nucleotide position 890, causing the serine (S) at amino acid position 297 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	0.29
BayesDel_addAF	Benign	-0.0088	T
BayesDel_noAF	Benign	-0.25
CADD	Benign	22
DANN	Uncertain	0.98
DEOGEN2	Benign	0.13	T;T;T;T;T
Eigen	Uncertain	0.47
Eigen_PC	Uncertain	0.39
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Benign	0.81	.;T;.;.;T
M_CAP	Benign	0.057	D
MetaRNN	Benign	0.30	T;T;T;T;T
MetaSVM	Uncertain	-0.057	T
MutationAssessor	Benign	1.1	L;L;L;L;.
MutationTaster	Benign	1.0	D;D;D;D;D;D;D
PrimateAI	Uncertain	0.56	T
PROVEAN	Benign	-1.3	N;N;N;N;.
REVEL	Uncertain	0.33
Sift	Benign	0.046	D;D;D;D;.
Sift4G	Uncertain	0.0070	D;D;D;D;D
Polyphen		1.0	D;D;D;D;.
Vest4		0.28
MutPred		0.56		Loss of disorder (P = 0.0087);Loss of disorder (P = 0.0087);Loss of disorder (P = 0.0087);Loss of disorder (P = 0.0087);Loss of disorder (P = 0.0087);
MVP		0.60
MPC		1.4
ClinPred		0.69	D
GERP RS		5.7
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.17
gMVP		0.54

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

Other links and lift over

dbSNP: rs1788124672; hg19: chr7-1132254;