NM_018344.6:c.21C>G

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_018344.6(SLC29A3):c.21C>G(p.Asp7Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,200 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign 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. Synonymous variant affecting the same amino acid position (i.e. D7D) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Consequence

SLC29A3
NM_018344.6 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.338

Publications

0 publications found

Variant links:

Genes affected

SLC29A3 (HGNC:23096): (solute carrier family 29 member 3) This gene encodes a nucleoside transporter. The encoded protein plays a role in cellular uptake of nucleosides, nucleobases, and their related analogs. Mutations in this gene have been associated with H syndrome, which is characterized by cutaneous hyperpigmentation and hypertrichosis, hepatosplenomegaly, heart anomalies, and hypogonadism. A related disorder, PHID (pigmented hypertrichosis with insulin-dependent diabetes mellitus), has also been associated with mutations at this locus. Alternatively spliced transcript variants have been described.[provided by RefSeq, Mar 2010]

SLC29A3 Gene-Disease associations (from GenCC):

H syndrome
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, ClinGen, Labcorp Genetics (formerly Invitae), Orphanet, PanelApp Australia
dysosteosclerosis
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

SLC29A3 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.13022703).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018344.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SLC29A3	NM_018344.6	MANE Select	c.21C>G	p.Asp7Glu	missense	Exon 2 of 6	NP_060814.4
SLC29A3	NM_001174098.2		c.21C>G	p.Asp7Glu	missense	Exon 2 of 6	NP_001167569.1
SLC29A3	NM_001363518.2		c.-214C>G		5_prime_UTR	Exon 2 of 6	NP_001350447.1	A0A2R8YDR8

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SLC29A3	ENST00000373189.6	TSL:1 MANE Select	c.21C>G	p.Asp7Glu	missense	Exon 2 of 6	ENSP00000362285.5	Q9BZD2-1
SLC29A3	ENST00000479577.2	TSL:2	c.-214C>G		5_prime_UTR	Exon 2 of 6	ENSP00000493995.1	A0A2R8YDR8
SLC29A3	ENST00000642198.1		n.-214C>G		non_coding_transcript_exon	Exon 2 of 6	ENSP00000494827.1	A0A2R8Y5U2

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152200

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

Cov.:

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152200

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74356

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41450

American (AMR)

AF:

0.00

AC:

AN:

15284

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5200

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10616

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68032

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.086

BayesDel_addAF

Benign

-0.16

BayesDel_noAF

Benign

-0.47

CADD

Benign

0.025

(source)

DANN

Benign

0.92

DEOGEN2

Benign

0.021

Eigen

Benign

-0.77

Eigen_PC

Benign

-0.96

FATHMM_MKL

Benign

0.070

LIST_S2

Benign

0.49

M_CAP

Benign

0.015

MetaRNN

Benign

0.13

MetaSVM

Benign

-0.82

MutationAssessor

Uncertain

2.0

PhyloP100

-0.34

PrimateAI

Benign

0.35

PROVEAN

Benign

-1.0

REVEL

Benign

0.12

Sift

Benign

0.032

Polyphen

1.0

Vest4

0.12

MutPred

0.22

Gain of phosphorylation at S12 (P = 0.2277)

MVP

0.66

MPC

0.061

ClinPred

0.46

GERP RS

-1.9

Varity_R

0.061

gMVP

0.34

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over