Genetic Variant SLC29A3:p.Glu444Lys (chr10-71362510-G-A) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM1PM2

The NM_018344.6(SLC29A3):c.1330G>A(p.Glu444Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E444M) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Consequence

SLC29A3
NM_018344.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 10.0

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 4 ACMG points.

PM1

In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 3 uncertain in NM_018344.6

PM2

Very rare variant in population databases, with high coverage;

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.1330G>A	p.Glu444Lys	missense	Exon 6 of 6	NP_060814.4
SLC29A3	NM_001363518.2		c.1096G>A	p.Glu366Lys	missense	Exon 6 of 6	NP_001350447.1	A0A2R8YDR8
SLC29A3	NM_001174098.2		c.*559G>A		3_prime_UTR	Exon 6 of 6	NP_001167569.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SLC29A3	ENST00000373189.6	TSL:1 MANE Select	c.1330G>A	p.Glu444Lys	missense	Exon 6 of 6	ENSP00000362285.5	Q9BZD2-1
SLC29A3	ENST00000479577.2	TSL:2	c.1096G>A	p.Glu366Lys	missense	Exon 6 of 6	ENSP00000493995.1	A0A2R8YDR8
SLC29A3	ENST00000469204.1	TSL:2	n.827G>A		non_coding_transcript_exon	Exon 3 of 3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Cov.:

GnomAD4 genome

Cov.:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.20

BayesDel_addAF

Uncertain

0.14

BayesDel_noAF

Uncertain

-0.040

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.039

Eigen

Uncertain

0.50

Eigen_PC

Uncertain

0.55

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.94

M_CAP

Benign

0.027

MetaRNN

Uncertain

0.71

MetaSVM

Benign

-0.67

MutationAssessor

Benign

1.5

PhyloP100

PrimateAI

Uncertain

0.71

PROVEAN

Uncertain

-2.4

REVEL

Benign

0.28

Sift

Benign

0.17

Polyphen

0.64

Vest4

0.76

MutPred

0.70

Gain of methylation at E444 (P = 0.0075)

MVP

0.85

MPC

0.40

ClinPred

0.95

GERP RS

5.6

Varity_R

0.66

gMVP

0.72

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