Genetic Variant SLC28A1:c.97-10C>A (chr15-84888762-C-A) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_004213.5(SLC28A1):c.97-10C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000387 in 1,549,368 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

SLC28A1
NM_004213.5 intron

Scores

Splicing: ADA: 0.9994

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.254

Publications

1 publications found

Variant links:

Genes affected

SLC28A1 (HGNC:11001): (solute carrier family 28 member 1) Enables azole transmembrane transporter activity; cytidine transmembrane transporter activity; and uridine transmembrane transporter activity. Involved in azole transmembrane transport; nucleoside transport; and pyrimidine-containing compound transmembrane transport. Located in cytosol; nuclear speck; and plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

SLC28A1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF. Scorers claiming Uncertain: max_spliceai. No scorers claiming Benign.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLC28A1	NM_004213.5 link	c.97-10C>A		intron_variant	Intron 3 of 18	ENST00000394573.6	NP_004204.3	O00337-1B7Z3L5

Ensembl

Gene	Transcript	HGVSc	Effect	Exon rank	TSL	MANE	Protein	UniProt
SLC28A1	ENST00000394573.6 link	c.97-10C>A	intron_variant	Intron 3 of 18	1	NM_004213.5	ENSP00000378074.1	O00337-1
SLC28A1	ENST00000286749.3 link	c.97-10C>A	intron_variant	Intron 2 of 17	1		ENSP00000286749.3	O00337-1
SLC28A1	ENST00000338602.6 link	c.97-10C>A	intron_variant	Intron 3 of 6	1		ENSP00000341629.2	O00337-2
SLC28A1	ENST00000538177.5 link	c.97-10C>A	intron_variant	Intron 2 of 14	2		ENSP00000443752.1	B7Z3L6

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152196

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

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:

0.00

AC:

AN:

154606

AF XY:

0.00

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:

0.00000215

AC:

AN:

1397172

Hom.:

Cov.:

AF XY:

0.00000145

AC XY:

AN XY:

689408

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

31616

American (AMR)

AF:

0.00

AC:

AN:

35796

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25172

East Asian (EAS)

AF:

0.00

AC:

AN:

35784

South Asian (SAS)

AF:

0.00

AC:

AN:

79218

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49076

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5430

European-Non Finnish (NFE)

AF:

0.00000279

AC:

AN:

1077196

Other (OTH)

AF:

0.00

AC:

AN:

57884

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.001100), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152196

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74344

show subpopulations

African (AFR)

AF:

0.0000724

AC:

AN:

41436

American (AMR)

AF:

0.00

AC:

AN:

15286

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5198

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

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:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000302

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.89

CADD

Benign

0.11

(source)

DANN

Benign

0.67

PhyloP100

-0.25

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Pathogenic

1.0

dbscSNV1_RF

Pathogenic

0.89

SpliceAI score (max)

0.50

Details are displayed if max score is > 0.2

DS_AL_spliceai

0.50

Position offset: 10

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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15-84888762-C-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over