Variant 1-159307883-G-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001387280.1(FCER1A):c.725G>C(p.Gly242Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000135 in 1,613,014 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G242C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00019 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00013 ( 0 hom. )

Consequence

FCER1A
NM_001387280.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.239

Variant links:

Genes affected

FCER1A (HGNC:3609): (Fc epsilon receptor Ia) The immunoglobulin epsilon receptor (IgE receptor) is the initiator of the allergic response. When two or more high-affinity IgE receptors are brought together by allergen-bound IgE molecules, mediators such as histamine that are responsible for allergy symptoms are released. This receptor is comprised of an alpha subunit, a beta subunit, and two gamma subunits. The protein encoded by this gene represents the alpha subunit. [provided by RefSeq, Aug 2011]

FCER1A links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.0043577254).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
FCER1A	NM_001387280.1 linkuse as main transcript	c.725G>C	p.Gly242Ala	missense_variant	5/5	ENST00000693622.1
FCER1A	NM_002001.4 linkuse as main transcript	c.725G>C	p.Gly242Ala	missense_variant	7/7
FCER1A	NM_001387282.1 linkuse as main transcript	c.626G>C	p.Gly209Ala	missense_variant	5/5
FCER1A	NM_001387281.1 linkuse as main transcript	c.470G>C	p.Gly157Ala	missense_variant	4/4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
FCER1A	ENST00000693622.1 linkuse as main transcript	c.725G>C	p.Gly242Ala	missense_variant	5/5		NM_001387280.1	P1
FCER1A	ENST00000368115.5 linkuse as main transcript	c.725G>C	p.Gly242Ala	missense_variant	6/6	1		P1
FCER1A	ENST00000368114.1 linkuse as main transcript	c.626G>C	p.Gly209Ala	missense_variant	5/5	3

Frequencies

GnomAD3 genomes

AF:

0.000191

AC:

AN:

152142

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00720

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000271

AC:

AN:

250942

Hom.:

AF XY:

0.000280

AC XY:

AN XY:

135620

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00596

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000353

Gnomad OTH exome

AF:

0.000491

GnomAD4 exome

AF:

0.000129

AC:

188

AN:

1460872

Hom.:

Cov.:

AF XY:

0.000140

AC XY:

102

AN XY:

726712

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00529

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000279

Gnomad4 OTH exome

AF:

0.000315

GnomAD4 genome

AF:

0.000191

AC:

AN:

152142

Hom.:

Cov.:

AF XY:

0.000242

AC XY:

AN XY:

74312

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00720

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000391

Hom.:

Bravo

AF:

0.000181

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000349

AC:

ExAC

AF:

0.000255

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

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 submitter

clinical testing

Ambry Genetics

Jan 19, 2022

The c.725G>C (p.G242A) alteration is located in exon 7 (coding exon 5) of the FCER1A gene. This alteration results from a G to C substitution at nucleotide position 725, causing the glycine (G) at amino acid position 242 to be replaced by an alanine (A). 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

0.12

BayesDel_addAF

Benign

-0.38

BayesDel_noAF

Benign

-0.67

CADD

Benign

3.9

DANN

Benign

0.87

DEOGEN2

Benign

0.22

T;.

Eigen

Benign

-0.85

Eigen_PC

Benign

-0.95

FATHMM_MKL

Benign

0.19

LIST_S2

Benign

0.56

T;T

M_CAP

Benign

0.0038

MetaRNN

Benign

0.0044

T;T

MetaSVM

Benign

-0.98

MutationAssessor

Uncertain

2.1

M;.

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.25

PROVEAN

Benign

-1.3

N;N

REVEL

Benign

0.054

Sift

Benign

0.038

D;D

Sift4G

Benign

1.0

T;T

Polyphen

0.80

P;.

Vest4

0.18

MVP

0.33

MPC

0.038

ClinPred

0.042

GERP RS

-1.8

Varity_R

0.047

gMVP

0.19

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over