X-48904763-C-T

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_ModerateBP6_ModerateBS2

The ENST00000445167.7(SLC35A2):​c.556G>A​(p.Gly186Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000306 in 1,209,749 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 18 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 9/13 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G186E) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000018 ( 0 hom., 1 hem., cov: 24)
Exomes 𝑓: 0.000032 ( 0 hom. 17 hem. )

Consequence

SLC35A2
ENST00000445167.7 missense

Scores

1
4
8

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 2.97
Variant links:
Genes affected
SLC35A2 (HGNC:11022): (solute carrier family 35 member A2) This gene encodes a member of the nucleotide-sugar transporter family. The encoded protein is a multi-pass membrane protein. It transports UDP-galactose from the cytosol into Golgi vesicles, where it serves as a glycosyl donor for the generation of glycans. Mutations in this gene cause congenital disorder of glycosylation type IIm (CDG2M). Multiple alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, Oct 2014]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.17264515).
BP6
Variant X-48904763-C-T is Benign according to our data. Variant chrX-48904763-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 697799.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High Hemizygotes in GnomAdExome4 at 17 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SLC35A2NM_005660.3 linkuse as main transcriptc.1146G>A p.Thr382= synonymous_variant 4/5 ENST00000247138.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SLC35A2ENST00000247138.11 linkuse as main transcriptc.1146G>A p.Thr382= synonymous_variant 4/51 NM_005660.3 P1P78381-1

Frequencies

GnomAD3 genomes
AF:
0.0000179
AC:
2
AN:
111844
Hom.:
0
Cov.:
24
AF XY:
0.0000294
AC XY:
1
AN XY:
34018
show subpopulations
Gnomad AFR
AF:
0.0000325
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000943
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:
0.0000164
AC:
3
AN:
182530
Hom.:
0
AF XY:
0.0000298
AC XY:
2
AN XY:
67092
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:
0.0000527
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000123
Gnomad OTH exome
AF:
0.000221
GnomAD4 exome
AF:
0.0000319
AC:
35
AN:
1097905
Hom.:
0
Cov.:
31
AF XY:
0.0000468
AC XY:
17
AN XY:
363271
show subpopulations
Gnomad4 AFR exome
AF:
0.0000379
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000185
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000356
Gnomad4 OTH exome
AF:
0.0000651
GnomAD4 genome
AF:
0.0000179
AC:
2
AN:
111844
Hom.:
0
Cov.:
24
AF XY:
0.0000294
AC XY:
1
AN XY:
34018
show subpopulations
Gnomad4 AFR
AF:
0.0000325
Gnomad4 AMR
AF:
0.0000943
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
Alfa
AF:
0.0000434
Hom.:
0
Bravo
AF:
0.0000151
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

SLC35A2-congenital disorder of glycosylation Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpOct 22, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.26
T
BayesDel_noAF
Benign
-0.45
CADD
Benign
8.7
DANN
Uncertain
1.0
FATHMM_MKL
Uncertain
0.82
D
LIST_S2
Benign
0.63
T;T;T
M_CAP
Pathogenic
0.30
D
MetaRNN
Benign
0.17
T;T;T
MetaSVM
Benign
-1.1
T
MutationTaster
Benign
1.0
D;D;D;D;N;N;N
PROVEAN
Benign
-2.3
N;N;N
REVEL
Benign
0.067
Sift
Uncertain
0.0030
D;D;D
Sift4G
Uncertain
0.034
D;D;D
Polyphen
0.60
.;P;.
Vest4
0.18
MutPred
0.61
Gain of MoRF binding (P = 0.0052);Gain of MoRF binding (P = 0.0052);.;
MVP
0.068
ClinPred
0.30
T
GERP RS
4.4

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.11
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: rs782707859; hg19: chrX-48762040; API