1-67009089-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_015139.3(SLC35D1):ā€‹c.955A>Gā€‹(p.Ile319Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000559 in 1,449,088 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.000066 ( 0 hom., cov: 32)
Exomes š‘“: 0.000055 ( 0 hom. )

Consequence

SLC35D1
NM_015139.3 missense

Scores

1
10
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.23
Variant links:
Genes affected
SLC35D1 (HGNC:20800): (solute carrier family 35 member D1) Glycosylation of cellular glycoconjugates occurs in the endoplasmic reticulum (ER) and Golgi compartment, and requires transport of nucleotide sugars from the cytosol into the lumen of the ER and Golgi by specific transporters. The protein encoded by this gene resides in the ER, and transports both UDP-glucuronic acid (UDP-GlcA) and UDP-N-acetylgalactosamine (UDP-GalNAc) from the cytoplasm to the ER lumen. It may participate in glucuronidation and/or chondroitin sulfate biosynthesis. Mutations in this gene are associated with Schneckenbecken dysplasia.[provided by RefSeq, Sep 2009]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SLC35D1NM_015139.3 linkuse as main transcriptc.955A>G p.Ile319Val missense_variant 11/12 ENST00000235345.6 NP_055954.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SLC35D1ENST00000235345.6 linkuse as main transcriptc.955A>G p.Ile319Val missense_variant 11/121 NM_015139.3 ENSP00000235345 P1Q9NTN3-1

Frequencies

GnomAD3 genomes
AF:
0.0000657
AC:
10
AN:
152212
Hom.:
0
Cov.:
32
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:
0.000132
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000369
AC:
9
AN:
243680
Hom.:
0
AF XY:
0.0000303
AC XY:
4
AN XY:
132210
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000831
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000547
AC:
71
AN:
1296876
Hom.:
0
Cov.:
19
AF XY:
0.0000413
AC XY:
27
AN XY:
653088
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000227
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:
0.0000642
Gnomad4 OTH exome
AF:
0.000147
GnomAD4 genome
AF:
0.0000657
AC:
10
AN:
152212
Hom.:
0
Cov.:
32
AF XY:
0.0000538
AC XY:
4
AN XY:
74368
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000132
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000567
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000117
AC:
1
ExAC
AF:
0.0000330
AC:
4

ClinVar

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

Submissions by phenotype

Schneckenbecken dysplasia Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpApr 25, 2022This variant has not been reported in the literature in individuals affected with SLC35D1-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. This variant is present in population databases (rs199878087, gnomAD 0.009%). This sequence change replaces isoleucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 319 of the SLC35D1 protein (p.Ile319Val). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Uncertain
0.026
T
BayesDel_noAF
Uncertain
0.0
CADD
Uncertain
26
DANN
Uncertain
1.0
DEOGEN2
Benign
0.11
T
Eigen
Uncertain
0.56
Eigen_PC
Uncertain
0.63
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.96
D
M_CAP
Benign
0.018
T
MetaRNN
Uncertain
0.68
D
MetaSVM
Benign
-0.72
T
MutationAssessor
Uncertain
2.5
M
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.78
T
PROVEAN
Benign
-0.89
N
REVEL
Benign
0.24
Sift
Benign
0.034
D
Sift4G
Uncertain
0.036
D
Polyphen
0.97
D
Vest4
0.70
MVP
0.83
MPC
0.68
ClinPred
0.36
T
GERP RS
6.2
Varity_R
0.31
gMVP
0.45

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs199878087; hg19: chr1-67474772; API