17-28473731-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_003984.4(SLC13A2):c.19G>A(p.Ala7Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000753 in 1,461,770 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000075 (0 hom.)
• Consequence: SLC13A2 NM_003984.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.03

Genes affected

SLC13A2 (HGNC:10917): (solute carrier family 13 member 2) The protein encoded by this gene is a sodium-coupled citrate transporter that is regulated by the chaperone activity of cyclophilin b. The encoded protein may play a role in the formation of kidney stones. [provided by RefSeq, Oct 2016]

RSKR (HGNC:26314): (ribosomal protein S6 kinase related) Predicted to enable protein kinase activity. Predicted to be involved in protein phosphorylation. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.07991126).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SLC13A2	NM_003984.4	c.19G>A	p.Ala7Thr	missense_variant	1/12	ENST00000314669.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SLC13A2	ENST00000314669.10	c.19G>A	p.Ala7Thr	missense_variant	1/12	1	NM_003984.4	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000797 AC: 2 AN: 250932 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 135640

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000544

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.000163

GnomAD4 exome AF: 0.00000753 AC: 11 AN: 1461770 Hom.: 0 Cov.: 30 AF XY: 0.00000275 AC XY: 2 AN XY: 727198

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000504

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.000149

GnomAD4 genome Cov.: 32

ExAC AF: 0.00000824 AC: 1

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 31, 2022

The c.19G>A (p.A7T) alteration is located in exon 1 (coding exon 1) of the SLC13A2 gene. This alteration results from a G to A substitution at nucleotide position 19, causing the alanine (A) at amino acid position 7 to be replaced by a threonine (T). 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	Benign	0.093
BayesDel_addAF	Benign	-0.37	T
BayesDel_noAF	Benign	-0.59
Cadd	Benign	21
Dann	Benign	0.94
Eigen	Benign	-0.19
Eigen_PC	Benign	-0.0031
FATHMM_MKL	Benign	0.67	D
LIST_S2	Benign	0.19	T;T
M_CAP	Benign	0.0035	T
MetaRNN	Benign	0.080	T;T
MetaSVM	Benign	-0.93	T
MutationAssessor	Benign	0.52	N;N
MutationTaster	Benign	0.99	N;N;N
PrimateAI	Benign	0.34	T
PROVEAN	Benign	-0.79	N;N
REVEL	Benign	0.042
Sift	Benign	0.43	T;T
Sift4G	Benign	0.67	T;T
Polyphen		0.022	.;B
Vest4		0.086
MutPred		0.57		Gain of glycosylation at A7 (P = 0.0575);Gain of glycosylation at A7 (P = 0.0575);
MVP		0.14
MPC		0.33
ClinPred		0.25	T
GERP RS		3.8
Varity_R		0.087
gMVP		0.29

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

LitVar

Other links and lift over

dbSNP: rs782449099; hg19: chr17-26800749;