19-5844224-T-A

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP3BS2

The NM_000149.4(FUT3):c.616A>T(p.Arg206Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000521 in 1,613,806 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000055 ( 0 hom. )

Consequence

FUT3
NM_000149.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0750

Variant links:

Genes affected

FUT3 (HGNC:4014): (fucosyltransferase 3 (Lewis blood group)) The Lewis histo-blood group system comprises a set of fucosylated glycosphingolipids that are synthesized by exocrine epithelial cells and circulate in body fluids. The glycosphingolipids function in embryogenesis, tissue differentiation, tumor metastasis, inflammation, and bacterial adhesion. They are secondarily absorbed to red blood cells giving rise to their Lewis phenotype. This gene is a member of the fucosyltransferase family, which catalyzes the addition of fucose to precursor polysaccharides in the last step of Lewis antigen biosynthesis. It encodes an enzyme with alpha(1,3)-fucosyltransferase and alpha(1,4)-fucosyltransferase activities. Mutations in this gene are responsible for the majority of Lewis antigen-negative phenotypes. Differences in the expression of this gene are associated with host susceptibility to viral infection. [provided by RefSeq, Aug 2020]

FUT3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.794

BS2

High AC in GnomAdExome4 at 81 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	Protein	UniProt
FUT3	NM_000149.4 link	c.616A>T	p.Arg206Trp	missense_variant	Exon 3 of 3	NP_000140.1	P21217A8K737
FUT3	NM_001097639.3 link	c.616A>T	p.Arg206Trp	missense_variant	Exon 3 of 3	NP_001091108.3	P21217A8K737
FUT3	NM_001097640.3 link	c.616A>T	p.Arg206Trp	missense_variant	Exon 3 of 3	NP_001091109.3	P21217A8K737

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	Protein	UniProt
FUT3	ENST00000303225.12 link	c.616A>T	p.Arg206Trp	missense_variant	Exon 3 of 3	1	ENSP00000305603.5	P21217
FUT3	ENST00000458379.7 link	c.616A>T	p.Arg206Trp	missense_variant	Exon 2 of 2	1	ENSP00000416443.1	P21217
FUT3	ENST00000589620.6 link	c.616A>T	p.Arg206Trp	missense_variant	Exon 3 of 3	1	ENSP00000465804.1	P21217
FUT3	ENST00000589918.5 link	c.616A>T	p.Arg206Trp	missense_variant	Exon 3 of 3	1	ENSP00000468123.1	P21217

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152122

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000239

AC:

AN:

251264

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135808

show subpopulations

Gnomad AFR exome

AF:

0.0000616

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:

0.0000440

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000554

AC:

AN:

1461684

Hom.:

Cov.:

AF XY:

0.0000440

AC XY:

AN XY:

727148

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000666

Gnomad4 OTH exome

AF:

0.000116

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152122

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74302

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000142

Hom.:

Bravo

AF:

0.0000340

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000330

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 12, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.616A>T (p.R206W) alteration is located in exon 3 (coding exon 1) of the FUT3 gene. This alteration results from a A to T substitution at nucleotide position 616, causing the arginine (R) at amino acid position 206 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

Uncertain

0.43

BayesDel_addAF

Benign

-0.087

BayesDel_noAF

Benign

-0.18

CADD

Benign

DANN

Uncertain

1.0

Eigen

Benign

-0.37

Eigen_PC

Benign

-0.81

FATHMM_MKL

Benign

0.038

M_CAP

Benign

0.014

MetaRNN

Pathogenic

0.79

D;D;D;D

MetaSVM

Benign

-0.35

PrimateAI

Uncertain

0.56

PROVEAN

Pathogenic

-8.0

D;D;.;.

REVEL

Uncertain

0.32

Sift

Pathogenic

0.0

D;D;.;.

Sift4G

Pathogenic

0.0

D;D;D;D

Vest4

0.57

MVP

0.86

MPC

1.5

ClinPred

0.99

GERP RS

-4.4

gMVP

0.81

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