Genetic Variant SLC35D2:p.Tyr101Asp (chr9-96360200-A-C) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_007001.3(SLC35D2):c.301T>G(p.Tyr101Asp) variant causes a missense change. The variant allele was found at a frequency of 0.00000186 in 1,612,226 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 variant affecting the same amino acid position, but resulting in a different missense (i.e. Y101C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 31)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

SLC35D2
NM_007001.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.78

Publications

0 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:

SLC35D2-HSD17B3 (HGNC:):

SLC35D2-HSD17B3 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.888

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.301T>G	p.Tyr101Asp	missense	Exon 4 of 12	NP_008932.2	Q76EJ3-1
SLC35D2	NM_001286990.2		c.301T>G	p.Tyr101Asp	missense	Exon 4 of 9	NP_001273919.1	Q76EJ3-2
SLC35D2	NR_104627.2		n.378T>G		non_coding_transcript_exon	Exon 4 of 13

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SLC35D2	ENST00000253270.13	TSL:1 MANE Select	c.301T>G	p.Tyr101Asp	missense	Exon 4 of 12	ENSP00000253270.7	Q76EJ3-1
SLC35D2	ENST00000375259.9	TSL:1	c.301T>G	p.Tyr101Asp	missense	Exon 4 of 9	ENSP00000364408.4	Q76EJ3-2
SLC35D2	ENST00000955257.1		c.301T>G	p.Tyr101Asp	missense	Exon 4 of 13	ENSP00000625316.1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152112

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000399

AC:

AN:

250440

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.0000621

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:

6.85e-7

AC:

AN:

1460114

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726444

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33448

American (AMR)

AF:

0.00

AC:

AN:

44664

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26090

East Asian (EAS)

AF:

0.00

AC:

AN:

39674

South Asian (SAS)

AF:

0.00

AC:

AN:

86136

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53202

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1110798

Other (OTH)

AF:

0.00

AC:

AN:

60334

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152112

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74302

show subpopulations

African (AFR)

AF:

0.0000483

AC:

AN:

41410

American (AMR)

AF:

0.00

AC:

AN:

15256

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5198

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10604

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68028

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000189

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.87

BayesDel_addAF

Pathogenic

0.24

BayesDel_noAF

Pathogenic

0.28

CADD

Pathogenic

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.31

Eigen

Pathogenic

0.74

Eigen_PC

Pathogenic

0.68

FATHMM_MKL

Uncertain

0.94

LIST_S2

Pathogenic

1.0

M_CAP

Uncertain

0.11

MetaRNN

Pathogenic

0.89

MetaSVM

Uncertain

0.083

MutationAssessor

Pathogenic

3.0

PhyloP100

5.8

PrimateAI

Uncertain

0.72

PROVEAN

Pathogenic

-8.6

REVEL

Uncertain

0.52

Sift

Uncertain

0.0020

Sift4G

Uncertain

0.0020

Polyphen

0.98

Vest4

0.95

MutPred

0.64

Gain of disorder (P = 0.0531)

MVP

0.78

MPC

1.0

ClinPred

0.99

GERP RS

4.8

PromoterAI

0.0032

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.88

gMVP

0.93

Mutation Taster

=41/59

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.24

Details are displayed if max score is > 0.2

DS_DG_spliceai

0.24

Position offset: -46

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