rs665

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 2P and 16B. PM2BP4_StrongBP6_Very_StrongBS1

The NM_000147.5(FUCA1):​c.778G>A​(p.Val260Ile) variant causes a missense change. The variant allele was found at a frequency of 0.00034 in 1,612,522 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00016 ( 0 hom. )

Consequence

FUCA1
NM_000147.5 missense

Scores

4
15

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 3.83
Variant links:
Genes affected
FUCA1 (HGNC:4006): (alpha-L-fucosidase 1) The protein encoded by this gene is a lysosomal enzyme involved in the degradation of fucose-containing glycoproteins and glycolipids. Mutations in this gene are associated with fucosidosis (FUCA1D), which is an autosomal recessive lysosomal storage disease. A pseudogene of this locus is present on chr 2.[provided by RefSeq, Oct 2009]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.011349589).
BP6
Variant 1-23854551-C-T is Benign according to our data. Variant chr1-23854551-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 235414.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00204 (311/152292) while in subpopulation AFR AF= 0.00715 (297/41558). AF 95% confidence interval is 0.00648. There are 0 homozygotes in gnomad4. There are 166 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
FUCA1NM_000147.5 linkuse as main transcriptc.778G>A p.Val260Ile missense_variant 5/8 ENST00000374479.4 NP_000138.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
FUCA1ENST00000374479.4 linkuse as main transcriptc.778G>A p.Val260Ile missense_variant 5/81 NM_000147.5 ENSP00000363603 P1

Frequencies

GnomAD3 genomes
AF:
0.00204
AC:
310
AN:
152174
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00714
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000458
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:
0.00335
GnomAD3 exomes
AF:
0.000429
AC:
108
AN:
251458
Hom.:
0
AF XY:
0.000412
AC XY:
56
AN XY:
135910
show subpopulations
Gnomad AFR exome
AF:
0.00591
Gnomad AMR exome
AF:
0.000260
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:
0.000489
GnomAD4 exome
AF:
0.000162
AC:
237
AN:
1460230
Hom.:
0
Cov.:
32
AF XY:
0.000125
AC XY:
91
AN XY:
726584
show subpopulations
Gnomad4 AFR exome
AF:
0.00616
Gnomad4 AMR exome
AF:
0.000358
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:
0.000216
GnomAD4 genome
AF:
0.00204
AC:
311
AN:
152292
Hom.:
0
Cov.:
32
AF XY:
0.00223
AC XY:
166
AN XY:
74454
show subpopulations
Gnomad4 AFR
AF:
0.00715
Gnomad4 AMR
AF:
0.000458
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:
0.00331
Alfa
AF:
0.000404
Hom.:
2
Bravo
AF:
0.00212
ESP6500AA
AF:
0.00862
AC:
38
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000593
AC:
72
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

Significance: Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Fucosidosis Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 28, 2024- -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingCenter for Pediatric Genomic Medicine, Children's Mercy Hospital and ClinicsApr 14, 2015- -
FUCA1-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesFeb 03, 2020This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.49
T
BayesDel_noAF
Benign
-0.48
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.055
T
Eigen
Benign
0.044
Eigen_PC
Benign
0.073
FATHMM_MKL
Uncertain
0.83
D
LIST_S2
Uncertain
0.91
D
M_CAP
Benign
0.023
T
MetaRNN
Benign
0.011
T
MetaSVM
Benign
-0.81
T
MutationAssessor
Benign
1.7
L
MutationTaster
Benign
1.0
D
PrimateAI
Benign
0.37
T
PROVEAN
Benign
-0.79
N
REVEL
Benign
0.073
Sift
Benign
0.076
T
Sift4G
Uncertain
0.058
T
Polyphen
0.54
P
Vest4
0.064
MVP
0.59
MPC
0.34
ClinPred
0.023
T
GERP RS
3.8
Varity_R
0.096
gMVP
0.58

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: rs665; hg19: chr1-24181041; API