14-65561583-C-T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4BS1_Supporting

The NM_001371533.1(FUT8):​c.20C>T​(p.Ser7Phe) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000165 in 1,613,260 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. S7S) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00017 ( 0 hom. )

Consequence

FUT8
NM_001371533.1 missense

Scores

5
6
8

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 7.57

Publications

0 publications found
Variant links:
Genes affected
FUT8 (HGNC:4019): (fucosyltransferase 8) This gene encodes an enzyme belonging to the family of fucosyltransferases. The product of this gene catalyzes the transfer of fucose from GDP-fucose to N-linked type complex glycopeptides. This enzyme is distinct from other fucosyltransferases which catalyze alpha1-2, alpha1-3, and alpha1-4 fucose addition. The expression of this gene may contribute to the malignancy of cancer cells and to their invasive and metastatic capabilities. Alternative splicing results in multiple transcript variants. [provided by RefSeq, May 2011]
FUT8 Gene-Disease associations (from GenCC):
  • congenital disorder of glycosylation with defective fucosylation 1
    Inheritance: AR Classification: STRONG, MODERATE Submitted by: PanelApp Australia, Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.39219093).
BS1
Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.000158 (24/152082) while in subpopulation NFE AF = 0.000309 (21/68018). AF 95% confidence interval is 0.000207. There are 0 homozygotes in GnomAd4. There are 12 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FUT8NM_001371533.1 linkc.20C>T p.Ser7Phe missense_variant Exon 3 of 11 ENST00000673929.1 NP_001358462.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FUT8ENST00000673929.1 linkc.20C>T p.Ser7Phe missense_variant Exon 3 of 11 NM_001371533.1 ENSP00000501213.1 Q9BYC5-1

Frequencies

GnomAD3 genomes
AF:
0.000158
AC:
24
AN:
152082
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
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:
0.0000943
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000309
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000155
AC:
39
AN:
250906
AF XY:
0.000133
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000109
Gnomad FIN exome
AF:
0.0000925
Gnomad NFE exome
AF:
0.000309
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000166
AC:
242
AN:
1461178
Hom.:
0
Cov.:
30
AF XY:
0.000153
AC XY:
111
AN XY:
726898
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33432
American (AMR)
AF:
0.00
AC:
0
AN:
44698
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26112
East Asian (EAS)
AF:
0.0000504
AC:
2
AN:
39686
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86238
European-Finnish (FIN)
AF:
0.0000374
AC:
2
AN:
53418
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5740
European-Non Finnish (NFE)
AF:
0.000210
AC:
233
AN:
1111498
Other (OTH)
AF:
0.0000828
AC:
5
AN:
60356
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.456
Heterozygous variant carriers
0
12
24
36
48
60
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000158
AC:
24
AN:
152082
Hom.:
0
Cov.:
32
AF XY:
0.000162
AC XY:
12
AN XY:
74270
show subpopulations
African (AFR)
AF:
0.0000483
AC:
2
AN:
41422
American (AMR)
AF:
0.00
AC:
0
AN:
15242
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5196
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4820
European-Finnish (FIN)
AF:
0.0000943
AC:
1
AN:
10600
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000309
AC:
21
AN:
68018
Other (OTH)
AF:
0.00
AC:
0
AN:
2088
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.481
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000278
Hom.:
0
Bravo
AF:
0.000136
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000519
AC:
2
ExAC
AF:
0.000123
AC:
15
EpiCase
AF:
0.000164
EpiControl
AF:
0.000474

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Jun 07, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.20C>T (p.S7F) alteration is located in exon 3 (coding exon 1) of the FUT8 gene. This alteration results from a C to T substitution at nucleotide position 20, causing the serine (S) at amino acid position 7 to be replaced by a phenylalanine (F). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Congenital disorder of glycosylation with defective fucosylation 1 Uncertain:1
May 21, 2024
Fulgent Genetics, Fulgent Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.66
BayesDel_addAF
Benign
-0.0031
T
BayesDel_noAF
Uncertain
0.090
CADD
Pathogenic
32
DANN
Uncertain
1.0
DEOGEN2
Benign
0.26
T;T;.;.;.;.;.;.
Eigen
Pathogenic
0.69
Eigen_PC
Pathogenic
0.73
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.96
.;D;D;D;.;D;D;D
M_CAP
Benign
0.045
D
MetaRNN
Benign
0.39
T;T;T;T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.69
N;N;.;.;.;.;.;.
PhyloP100
7.6
PrimateAI
Pathogenic
0.84
D
PROVEAN
Benign
-0.050
N;N;D;D;D;D;D;D
REVEL
Uncertain
0.41
Sift
Uncertain
0.0060
D;D;.;D;.;D;D;D
Sift4G
Uncertain
0.019
D;D;D;D;.;D;D;D
Polyphen
0.99
D;D;.;.;.;.;.;.
Vest4
0.78
MVP
0.77
MPC
1.4
ClinPred
0.14
T
GERP RS
5.6
Varity_R
0.37
gMVP
0.93
Mutation Taster
=58/42
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.14
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs752511284; hg19: chr14-66028301; API