Genetic Variant FUT4:p.Arg105Trp (chr11-94544446-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_002033.4(FUT4):c.313C>T(p.Arg105Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000199 in 1,358,268 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R105G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000020 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

FUT4
NM_002033.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.277

Publications

1 publications found

Variant links:

Genes affected

FUT4 (HGNC:4015): (fucosyltransferase 4) The product of this gene transfers fucose to N-acetyllactosamine polysaccharides to generate fucosylated carbohydrate structures. It catalyzes the synthesis of the non-sialylated antigen, Lewis x (CD15). [provided by RefSeq, Jan 2009]

FUT4 links:

PIWIL4 (HGNC:18444): (piwi like RNA-mediated gene silencing 4) PIWIL4 belongs to the Argonaute family of proteins, which function in development and maintenance of germline stem cells (Sasaki et al., 2003 [PubMed 12906857]).[supplied by OMIM, Mar 2008]

PIWIL4 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.06897241).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FUT4	NM_002033.4 link	c.313C>T	p.Arg105Trp	missense_variant	Exon 1 of 1	ENST00000358752.4	NP_002024.1	P22083-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FUT4	ENST00000358752.4 link	c.313C>T	p.Arg105Trp	missense_variant	Exon 1 of 1	6	NM_002033.4	ENSP00000351602.2		P22083-1
PIWIL4	ENST00000543336.5 link	n.-121+457C>T		intron_variant	Intron 1 of 13	2		ENSP00000444575.1		Q7Z3Z4-3

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152010

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000199

AC:

AN:

1358268

Hom.:

Cov.:

AF XY:

0.0000179

AC XY:

AN XY:

670628

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

27948

American (AMR)

AF:

0.00

AC:

AN:

33788

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24204

East Asian (EAS)

AF:

0.0000315

AC:

AN:

31758

South Asian (SAS)

AF:

0.00

AC:

AN:

77332

European-Finnish (FIN)

AF:

0.00

AC:

AN:

33626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4212

European-Non Finnish (NFE)

AF:

0.0000234

AC:

AN:

1068682

Other (OTH)

AF:

0.0000176

AC:

AN:

56718

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.479

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.00000658

AC:

AN:

152010

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74244

show subpopulations

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.0000241

AC:

AN:

41438

American (AMR)

AF:

0.00

AC:

AN:

15272

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3464

East Asian (EAS)

AF:

0.00

AC:

AN:

5138

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10578

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67970

Other (OTH)

AF:

0.00

AC:

AN:

2090

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.63

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.10

Eigen

Benign

-0.96

Eigen_PC

Benign

-0.95

FATHMM_MKL

Benign

0.039

LIST_S2

Benign

0.55

M_CAP

Pathogenic

0.31

MetaRNN

Benign

0.069

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.1

PhyloP100

-0.28

PrimateAI

Pathogenic

0.81

PROVEAN

Benign

-1.4

REVEL

Benign

0.031

Sift

Benign

0.13

Sift4G

Uncertain

0.011

Polyphen

0.029

Vest4

0.076

MutPred

0.26

Loss of phosphorylation at S108 (P = 0.0714);

MVP

0.39

MPC

0.82

ClinPred

0.37

GERP RS

-2.2

Varity_R

0.095

gMVP

0.26

Mutation Taster

=92/8

polymorphism

(source)

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

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11-94544446-C-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over