Genetic Variant SLC17A1:p.Cys210Arg (chr6-25813202-A-G) – 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_005074.5(SLC17A1):c.628T>C(p.Cys210Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,634 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

SLC17A1
NM_005074.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.33

Publications

0 publications found

Variant links:

Genes affected

SLC17A1 (HGNC:10929): (solute carrier family 17 member 1) Predicted to enable sialic acid transmembrane transporter activity. Involved in urate metabolic process and urate transport. Located in apical plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

SLC17A1 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, 0.961

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLC17A1	NM_005074.5 link	c.628T>C	p.Cys210Arg	missense_variant	Exon 7 of 13	ENST00000244527.10	NP_005065.2	Q14916-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SLC17A1	ENST00000244527.10 link	c.628T>C	p.Cys210Arg	missense_variant	Exon 7 of 13	5	NM_005074.5	ENSP00000244527.4	Q14916-1
SLC17A1	ENST00000468082.1 link	c.628T>C	p.Cys210Arg	missense_variant	Exon 6 of 10	1		ENSP00000420546.1	Q14916-2
SLC17A1	ENST00000476801.5 link	c.628T>C	p.Cys210Arg	missense_variant	Exon 7 of 12	2		ENSP00000420614.1	Q14916-1
SLC17A1	ENST00000377886.6 link	n.617-210T>C		intron_variant	Intron 6 of 11	5		ENSP00000367118.2	E9PGW3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461634

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727166

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:

33476

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86252

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111776

Other (OTH)

AF:

0.00

AC:

AN:

60388

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), 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

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 24, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.628T>C (p.C210R) alteration is located in exon 7 (coding exon 6) of the SLC17A1 gene. This alteration results from a T to C substitution at nucleotide position 628, causing the cysteine (C) at amino acid position 210 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.94

BayesDel_addAF

Uncertain

0.15

BayesDel_noAF

Uncertain

-0.020

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.54

D;D;.

Eigen

Uncertain

0.47

Eigen_PC

Uncertain

0.32

FATHMM_MKL

Uncertain

0.84

LIST_S2

Uncertain

0.87

.;D;D

M_CAP

Benign

0.036

MetaRNN

Pathogenic

0.96

D;D;D

MetaSVM

Benign

-0.50

MutationAssessor

Pathogenic

3.1

M;M;M

PhyloP100

3.3

PrimateAI

Benign

0.42

PROVEAN

Pathogenic

-11

D;D;D

REVEL

Uncertain

0.34

Sift

Uncertain

0.0010

D;D;D

Sift4G

Pathogenic

0.0010

D;D;D

Polyphen

1.0

D;D;D

Vest4

0.80

MutPred

0.81

Gain of methylation at C210 (P = 0.0026);Gain of methylation at C210 (P = 0.0026);Gain of methylation at C210 (P = 0.0026);

MVP

0.86

MPC

0.66

ClinPred

1.0

GERP RS

3.3

Varity_R

0.98

gMVP

0.70

Mutation Taster

=84/16

polymorphism

(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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6-25813202-A-G

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over