chr19-5843771-C-T

Variant summary

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

The NM_000149.4(FUT3):​c.1069G>A​(p.Ala357Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,562 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

FUT3
NM_000149.4 missense

Scores

16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.139
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]

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=0.12828118).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FUT3NM_000149.4 linkc.1069G>A p.Ala357Thr missense_variant Exon 3 of 3 NP_000140.1 P21217A8K737
FUT3NM_001097639.3 linkc.1069G>A p.Ala357Thr missense_variant Exon 3 of 3 NP_001091108.3 P21217A8K737
FUT3NM_001097640.3 linkc.1069G>A p.Ala357Thr missense_variant Exon 3 of 3 NP_001091109.3 P21217A8K737

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FUT3ENST00000303225.12 linkc.1069G>A p.Ala357Thr missense_variant Exon 3 of 3 1 ENSP00000305603.5 P21217
FUT3ENST00000458379.7 linkc.1069G>A p.Ala357Thr missense_variant Exon 2 of 2 1 ENSP00000416443.1 P21217
FUT3ENST00000589620.6 linkc.1069G>A p.Ala357Thr missense_variant Exon 3 of 3 1 ENSP00000465804.1 P21217
FUT3ENST00000589918.5 linkc.1069G>A p.Ala357Thr missense_variant Exon 3 of 3 1 ENSP00000468123.1 P21217

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251376
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135894
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:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461562
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
727066
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:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Nov 12, 2024
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The c.1069G>A (p.A357T) alteration is located in exon 3 (coding exon 1) of the FUT3 gene. This alteration results from a G to A substitution at nucleotide position 1069, causing the alanine (A) at amino acid position 357 to be replaced by a threonine (T). 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
-0.23
T
BayesDel_noAF
Benign
-0.57
CADD
Benign
5.5
DANN
Benign
0.93
Eigen
Benign
-0.93
Eigen_PC
Benign
-0.97
FATHMM_MKL
Benign
0.11
N
M_CAP
Benign
0.010
T
MetaRNN
Benign
0.13
T;T;T;T
MetaSVM
Benign
-1.0
T
PrimateAI
Benign
0.44
T
PROVEAN
Benign
-1.3
N;N;.;.
REVEL
Benign
0.059
Sift
Benign
0.22
T;T;.;.
Sift4G
Benign
0.32
T;T;T;T
Vest4
0.12
MutPred
0.61
Gain of disorder (P = 0.1156);Gain of disorder (P = 0.1156);Gain of disorder (P = 0.1156);Gain of disorder (P = 0.1156);
MVP
0.22
MPC
0.57
ClinPred
0.28
T
GERP RS
2.2
gMVP
0.13

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.

Other links and lift over

dbSNP: rs187397780; hg19: chr19-5843782; API