19-48750493-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_001384359.1(FUT1):​c.789C>A​(p.Asn263Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000143 in 1,613,982 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

FUT1
NM_001384359.1 missense

Scores

4
9
6

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.49
Variant links:
Genes affected
FUT1 (HGNC:4012): (fucosyltransferase 1 (H blood group)) This gene encodes a Golgi stack membrane protein that is involved in the creation of a precursor of the H antigen, which is required for the final step in the synthesis of soluble A and B antigens. This is one of two genes encoding the galactoside 2-L-fucosyltransferase enzyme. Mutations in this gene are a cause of the H-Bombay blood group. [provided by RefSeq, Aug 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.813

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
FUT1NM_001384359.1 linkuse as main transcriptc.789C>A p.Asn263Lys missense_variant 2/2 ENST00000645652.2 NP_001371288.1
FUT1NM_000148.4 linkuse as main transcriptc.789C>A p.Asn263Lys missense_variant 4/4 NP_000139.1 P19526Q6IZA2
FUT1NM_001329877.1 linkuse as main transcriptc.789C>A p.Asn263Lys missense_variant 5/5 NP_001316806.1 P19526Q6IZA2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
FUT1ENST00000645652.2 linkuse as main transcriptc.789C>A p.Asn263Lys missense_variant 2/2 NM_001384359.1 ENSP00000494643.1 P19526

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152232
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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
GnomAD3 exomes
AF:
0.0000915
AC:
23
AN:
251302
Hom.:
0
AF XY:
0.0000589
AC XY:
8
AN XY:
135856
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000665
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000151
AC:
22
AN:
1461750
Hom.:
0
Cov.:
33
AF XY:
0.0000124
AC XY:
9
AN XY:
727178
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000492
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152232
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74366
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000151
ExAC
AF:
0.0000165
AC:
2
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsSep 26, 2024The c.789C>A (p.N263K) alteration is located in exon 4 (coding exon 1) of the FUT1 gene. This alteration results from a C to A substitution at nucleotide position 789, causing the asparagine (N) at amino acid position 263 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
Pathogenic
0.89
BayesDel_addAF
Benign
-0.092
T
BayesDel_noAF
Uncertain
-0.020
CADD
Benign
4.1
DANN
Uncertain
0.98
DEOGEN2
Benign
0.37
T;T
Eigen
Benign
-0.61
Eigen_PC
Benign
-0.89
FATHMM_MKL
Benign
0.084
N
LIST_S2
Uncertain
0.94
.;D
M_CAP
Uncertain
0.27
D
MetaRNN
Pathogenic
0.81
D;D
MetaSVM
Pathogenic
0.97
D
MutationAssessor
Pathogenic
3.1
M;M
PrimateAI
Uncertain
0.57
T
PROVEAN
Uncertain
-4.4
.;D
REVEL
Uncertain
0.60
Sift
Uncertain
0.0020
.;D
Sift4G
Uncertain
0.0060
.;D
Polyphen
1.0
D;D
Vest4
0.86
MutPred
0.74
Gain of methylation at N263 (P = 0.0194);Gain of methylation at N263 (P = 0.0194);
MVP
0.88
MPC
1.4
ClinPred
0.79
D
GERP RS
-5.3
Varity_R
0.93
gMVP
0.96

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: rs751831069; hg19: chr19-49253750; API