Genetic Variant NM_002033.4:c.49G>A (chr11-94544182-G-A) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_002033.4(FUT4):c.49G>A(p.Glu17Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000249 in 1,402,912 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

FUT4
NM_002033.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.605

Publications

0 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:

ENSG00000304830 (HGNC:):

ENSG00000304830 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.045196265).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FUT4	NM_002033.4 link	c.49G>A	p.Glu17Lys	missense_variant	Exon 1 of 1	ENST00000358752.4	NP_002024.1	P22083-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
FUT4	ENST00000358752.4 link	c.49G>A	p.Glu17Lys	missense_variant	Exon 1 of 1	6	NM_002033.4	ENSP00000351602.2	P22083-1
PIWIL4	ENST00000543336.5 link	n.-121+193G>A		intron_variant	Intron 1 of 13	2		ENSP00000444575.1	Q7Z3Z4-3
ENSG00000304830	ENST00000806516.1 link	n.-38C>T		upstream_gene_variant

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152198

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000654

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000351

AC:

AN:

28502

AF XY:

0.0000659

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000105

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000192

AC:

AN:

1250714

Hom.:

Cov.:

AF XY:

0.0000197

AC XY:

AN XY:

608256

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

24074

American (AMR)

AF:

0.0000806

AC:

AN:

12404

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

17260

East Asian (EAS)

AF:

0.00

AC:

AN:

28082

South Asian (SAS)

AF:

0.00

AC:

AN:

56892

European-Finnish (FIN)

AF:

0.00

AC:

AN:

43880

Middle Eastern (MID)

AF:

0.00

AC:

AN:

3474

European-Non Finnish (NFE)

AF:

0.0000227

AC:

AN:

1013662

Other (OTH)

AF:

0.00

AC:

AN:

50986

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.485

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000723

AC:

AN:

152198

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74356

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41462

American (AMR)

AF:

0.000654

AC:

AN:

15288

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5172

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68026

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.489

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000453

ExAC

AF:

0.0000208

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 20, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.49G>A (p.E17K) alteration is located in exon 1 (coding exon 1) of the FUT4 gene. This alteration results from a G to A substitution at nucleotide position 49, causing the glutamic acid (E) at amino acid position 17 to be replaced by a lysine (K). 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

0.10

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.46

CADD

Benign

8.7

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.072

Eigen

Benign

-0.83

Eigen_PC

Benign

-0.82

FATHMM_MKL

Benign

0.088

LIST_S2

Benign

0.35

M_CAP

Benign

0.081

MetaRNN

Benign

0.045

MetaSVM

Benign

-0.99

MutationAssessor

Benign

0.0

PhyloP100

0.60

PrimateAI

Uncertain

0.64

PROVEAN

Benign

-0.29

REVEL

Benign

0.081

Sift

Benign

0.17

Sift4G

Pathogenic

0.0

Polyphen

0.12

Vest4

0.096

MutPred

0.14

Gain of MoRF binding (P = 0.0075);

MVP

0.43

MPC

0.89

ClinPred

0.14

GERP RS

3.1

PromoterAI

-0.14

Neutral

(source)

Varity_R

0.075

gMVP

0.090

Mutation Taster

=96/4

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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NM_002033.4:c.49G>A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over