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GeneBe

X-48904799-T-C

Variant summary

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

The ENST00000445167.7(SLC35A2):c.520A>G(p.Thr174Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000141 in 1,208,207 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 5 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 11/13 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T174S) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000090 ( 0 hom., 0 hem., cov: 24)
Exomes 𝑓: 0.000015 ( 0 hom. 5 hem. )

Consequence

SLC35A2
ENST00000445167.7 missense

Scores

13

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.405
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.1060842).
BP6
Variant X-48904799-T-C is Benign according to our data. Variant chrX-48904799-T-C is described in ClinVar as [Benign]. Clinvar id is 1169774.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High Hemizygotes in GnomAdExome at 2 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SLC35A2NM_005660.3 linkuse as main transcriptc.1110A>G p.Pro370= synonymous_variant 4/5 ENST00000247138.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SLC35A2ENST00000247138.11 linkuse as main transcriptc.1110A>G p.Pro370= synonymous_variant 4/51 NM_005660.3 P1P78381-1

Frequencies

GnomAD3 genomes
AF:
0.00000903
AC:
1
AN:
110765
Hom.:
0
Cov.:
24
AF XY:
0.00
AC XY:
0
AN XY:
33175
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000955
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:
0.0000330
AC:
6
AN:
181678
Hom.:
0
AF XY:
0.0000301
AC XY:
2
AN XY:
66354
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000110
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000530
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000123
Gnomad OTH exome
AF:
0.000223
GnomAD4 exome
AF:
0.0000146
AC:
16
AN:
1097442
Hom.:
0
Cov.:
31
AF XY:
0.0000138
AC XY:
5
AN XY:
362820
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000114
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000370
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000951
Gnomad4 OTH exome
AF:
0.0000434
GnomAD4 genome
AF:
0.00000903
AC:
1
AN:
110765
Hom.:
0
Cov.:
24
AF XY:
0.00
AC XY:
0
AN XY:
33175
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000955
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:
0.0000113
ExAC
AF:
0.0000247
AC:
3

ClinVar

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

Submissions by phenotype

SLC35A2-congenital disorder of glycosylation Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeJan 25, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.57
T
BayesDel_noAF
Benign
-0.87
Cadd
Benign
2.2
Dann
Benign
0.92
FATHMM_MKL
Benign
0.16
N
LIST_S2
Benign
0.39
T;T;T
M_CAP
Benign
0.0053
T
MetaRNN
Benign
0.11
T;T;T
MetaSVM
Benign
-0.99
T
MutationTaster
Benign
1.0
N;N;N;N;N;N;N
PROVEAN
Benign
-0.080
N;N;N
REVEL
Benign
0.059
Sift
Benign
0.068
T;T;T
Sift4G
Benign
0.24
T;D;D
Polyphen
0.0
.;B;.
Vest4
0.23
MutPred
0.39
Gain of helix (P = 0.0117);Gain of helix (P = 0.0117);.;
MVP
0.13
ClinPred
0.025
T
GERP RS
0.50
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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: rs782273947; hg19: chrX-48762076; COSMIC: COSV99504181; COSMIC: COSV99504181; API