Genetic Variant SLC35D2:p.Gly308Arg (chr9-96321334-C-T) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_007001.3(SLC35D2):c.922G>A(p.Gly308Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000685 in 1,460,698 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. Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

SLC35D2
NM_007001.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.63

Publications

1 publications found

Variant links:

Genes affected

SLC35D2 (HGNC:20799): (solute carrier family 35 member D2) Nucleotide sugars, which are synthesized in the cytosol or the nucleus, are high-energy donor substrates for glycosyltransferases located in the lumen of the endoplasmic reticulum and Golgi apparatus. Translocation of nucleotide sugars from the cytosol into the lumen compartment is mediated by specific nucleotide sugar transporters, such as SLC35D2 (Suda et al., 2004 [PubMed 15082721]).[supplied by OMIM, Mar 2008]

SLC35D2 links:

ENSG00000285269 (HGNC:):

ENSG00000285269 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.97

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_007001.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SLC35D2	NM_007001.3	MANE Select	c.922G>A	p.Gly308Arg	missense	Exon 12 of 12	NP_008932.2	Q76EJ3-1
SLC35D2	NM_001286990.2		c.658G>A	p.Gly220Arg	missense	Exon 9 of 9	NP_001273919.1	Q76EJ3-2
SLC35D2	NR_104627.2		n.999G>A		non_coding_transcript_exon	Exon 12 of 13

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SLC35D2	ENST00000253270.13	TSL:1 MANE Select	c.922G>A	p.Gly308Arg	missense	Exon 12 of 12	ENSP00000253270.7	Q76EJ3-1
SLC35D2	ENST00000375259.9	TSL:1	c.658G>A	p.Gly220Arg	missense	Exon 9 of 9	ENSP00000364408.4	Q76EJ3-2
ENSG00000285269	ENST00000643789.1		n.523G>A		non_coding_transcript_exon	Exon 8 of 22	ENSP00000494818.1	A0A2R8Y5X9

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.0000120

AC:

AN:

250690

AF XY:

0.0000148

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000685

AC:

AN:

1460698

Hom.:

Cov.:

AF XY:

0.0000110

AC XY:

AN XY:

726694

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33454

American (AMR)

AF:

0.00

AC:

AN:

44636

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26120

East Asian (EAS)

AF:

0.00

AC:

AN:

39680

South Asian (SAS)

AF:

0.000105

AC:

AN:

86086

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53392

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

9.00e-7

AC:

AN:

1111208

Other (OTH)

AF:

0.00

AC:

AN:

60358

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.455

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.97

BayesDel_addAF

Pathogenic

0.26

BayesDel_noAF

Pathogenic

0.35

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.54

Eigen

Pathogenic

0.71

Eigen_PC

Uncertain

0.62

FATHMM_MKL

Uncertain

0.91

LIST_S2

Uncertain

0.95

M_CAP

Uncertain

0.14

MetaRNN

Pathogenic

0.97

MetaSVM

Uncertain

0.14

PhyloP100

4.6

PrimateAI

Uncertain

0.58

PROVEAN

Pathogenic

-6.6

REVEL

Pathogenic

0.91

Sift

Uncertain

0.0010

Sift4G

Pathogenic

0.0010

Polyphen

1.0

Vest4

0.89

MutPred

0.86

Gain of methylation at G308 (P = 0.0053)

MVP

0.68

MPC

0.82

ClinPred

0.99

GERP RS

4.5

Varity_R

0.97

gMVP

0.96

Mutation Taster

=42/58

disease causing

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over