Variant 19-35352288-C-T 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_005303.3(FFAR1):c.737C>T(p.Ala246Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000049 in 1,552,180 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 (★).

Frequency

Genomes: 𝑓 0.00025 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

FFAR1
NM_005303.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.68

Variant links:

Genes affected

FFAR1 (HGNC:4498): (free fatty acid receptor 1) This gene encodes a member of the GP40 family of G protein-coupled receptors that are clustered together on chromosome 19. The encoded protein is a receptor for medium and long chain free fatty acids and may be involved in the metabolic regulation of insulin secretion. Polymorphisms in this gene may be associated with type 2 diabetes. [provided by RefSeq, Apr 2009]

FFAR1 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=0.015834719).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
FFAR1	NM_005303.3 linkuse as main transcript	c.737C>T	p.Ala246Val	missense_variant	2/2	ENST00000246553.4	NP_005294.1	O14842
FFAR1	XM_047438698.1 linkuse as main transcript	c.737C>T	p.Ala246Val	missense_variant	2/2		XP_047294654.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
FFAR1	ENST00000246553.4 linkuse as main transcript	c.737C>T	p.Ala246Val	missense_variant	2/2	6	NM_005303.3	ENSP00000246553.2		O14842

Frequencies

GnomAD3 genomes

AF:

0.000243

AC:

AN:

152234

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000892

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000576

AC:

AN:

156234

Hom.:

AF XY:

0.0000363

AC XY:

AN XY:

82742

show subpopulations

Gnomad AFR exome

AF:

0.000806

Gnomad AMR exome

AF:

0.0000805

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000271

AC:

AN:

1399828

Hom.:

Cov.:

AF XY:

0.0000290

AC XY:

AN XY:

690736

show subpopulations

Gnomad4 AFR exome

AF:

0.00107

Gnomad4 AMR exome

AF:

0.0000837

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:

0.0000172

GnomAD4 genome

AF:

0.000249

AC:

AN:

152352

Hom.:

Cov.:

AF XY:

0.000188

AC XY:

AN XY:

74514

show subpopulations

Gnomad4 AFR

AF:

0.000914

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000524

Hom.:

Bravo

AF:

0.000272

ESP6500AA

AF:

0.00117

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000561

AC:

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

Nov 09, 2022

The c.737C>T (p.A246V) alteration is located in exon 1 (coding exon 1) of the FFAR1 gene. This alteration results from a C to T substitution at nucleotide position 737, causing the alanine (A) at amino acid position 246 to be replaced by a valine (V). 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

0.099

BayesDel_addAF

Benign

-0.50

BayesDel_noAF

Benign

-0.58

CADD

Benign

DANN

Benign

0.89

DEOGEN2

Benign

0.082

Eigen

Benign

-0.64

Eigen_PC

Benign

-0.43

FATHMM_MKL

Benign

0.43

LIST_S2

Benign

0.66

M_CAP

Benign

0.0028

MetaRNN

Benign

0.016

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-0.020

PrimateAI

Uncertain

0.60

PROVEAN

Benign

3.4

REVEL

Benign

0.047

Sift

Benign

1.0

Sift4G

Pathogenic

0.0

Polyphen

0.0020

Vest4

0.081

MVP

0.56

MPC

0.54

ClinPred

0.052

GERP RS

3.0

Varity_R

0.071

gMVP

0.19

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

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