10-93566826-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001195755.2(FFAR4):c.106C>T(p.Arg36Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000499 in 1,603,096 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000051 ( 0 hom. )

Consequence

FFAR4
NM_001195755.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.441

Variant links:

Genes affected

FFAR4 (HGNC:19061): (free fatty acid receptor 4) This gene encodes a G protein-coupled receptor (GPR) which belongs to the rhodopsin family of GPRs. The encoded protein functions as a receptor for free fatty acids, including omega-3, and participates in suppressing anti-inflammatory responses and insulin sensitizing. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Feb 2012]

FFAR4 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

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=0.13839236).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
FFAR4	NM_001195755.2 linkuse as main transcript	c.106C>T	p.Arg36Trp	missense_variant	1/3	ENST00000371481.9
FFAR4	NM_181745.4 linkuse as main transcript	c.106C>T	p.Arg36Trp	missense_variant	1/4
FFAR4	XM_011539746.4 linkuse as main transcript	c.106C>T	p.Arg36Trp	missense_variant	1/3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FFAR4	ENST00000371481.9 linkuse as main transcript	c.106C>T	p.Arg36Trp	missense_variant	1/3	1	NM_001195755.2	P1	Q5NUL3-2
FFAR4	ENST00000371483.8 linkuse as main transcript	c.106C>T	p.Arg36Trp	missense_variant	1/4	1			Q5NUL3-1
FFAR4	ENST00000604414.1 linkuse as main transcript	c.106C>T	p.Arg36Trp	missense_variant	1/3	3

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152232

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000177

AC:

AN:

226350

Hom.:

AF XY:

0.0000243

AC XY:

AN XY:

123704

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

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:

0.0000295

Gnomad OTH exome

AF:

0.000178

GnomAD4 exome

AF:

0.0000510

AC:

AN:

1450864

Hom.:

Cov.:

AF XY:

0.0000541

AC XY:

AN XY:

721456

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000118

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000614

Gnomad4 OTH exome

AF:

0.0000834

GnomAD4 genome

AF:

0.0000394

AC:

AN:

152232

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74368

show subpopulations

Gnomad4 AFR

AF:

0.0000241

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:

0.0000735

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000727

Hom.:

Bravo

AF:

0.0000416

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

Jul 12, 2023

The c.106C>T (p.R36W) alteration is located in exon 1 (coding exon 1) of the FFAR4 gene. This alteration results from a C to T substitution at nucleotide position 106, causing the arginine (R) at amino acid position 36 to be replaced by a tryptophan (W). 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

0.18

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.52

Cadd

Benign

Dann

Uncertain

0.99

Eigen

Benign

-0.43

Eigen_PC

Benign

-0.30

FATHMM_MKL

Benign

0.70

LIST_S2

Benign

0.83

T;T;T

M_CAP

Benign

0.020

MetaRNN

Benign

0.14

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

2.0

M;M;.

MutationTaster

Benign

0.83

D;D

PrimateAI

Uncertain

0.50

PROVEAN

Benign

0.13

N;N;.

REVEL

Benign

0.067

Sift

Benign

0.064

T;T;.

Sift4G

Uncertain

0.059

T;T;T

Polyphen

0.017

B;B;.

Vest4

0.17

MutPred

0.59

Loss of methylation at R36 (P = 0.0513);Loss of methylation at R36 (P = 0.0513);Loss of methylation at R36 (P = 0.0513);

MVP

0.38

MPC

0.55

ClinPred

0.20

GERP RS

2.2

Varity_R

0.056

gMVP

0.70

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