6-25916755-C-A

Variant names:

• chr6-25916755-C-A
• NM_001286123.3:c.860G>T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP3

The NM_001286123.3(SLC17A2):​c.860G>T​(p.Trp287Leu) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. 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)
• Consequence: SLC17A2 NM_001286123.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.69

Genes affected

SLC17A2 (HGNC:10930): (solute carrier family 17 member 2) Predicted to enable sialic acid transmembrane transporter activity. Predicted to be involved in sialic acid transport. Predicted to be located in membrane. Predicted to be active in lysosome. Predicted to be integral component of plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.826

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLC17A2	NM_001286123.3	c.860G>T	p.Trp287Leu	missense_variant	Exon 8 of 12	ENST00000377850.8	NP_001273052.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SLC17A2	ENST00000377850.8	c.860G>T	p.Trp287Leu	missense_variant	Exon 8 of 12	5	NM_001286123.3	ENSP00000367081.3
SLC17A2	ENST00000360488.7	c.860G>T	p.Trp287Leu	missense_variant	Exon 8 of 11	1		ENSP00000353677.3
SLC17A2	ENST00000265425.3	c.860G>T	p.Trp287Leu	missense_variant	Exon 7 of 11	5		ENSP00000265425.3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Feb 05, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.860G>T (p.W287L) alteration is located in exon 8 (coding exon 7) of the SLC17A2 gene. This alteration results from a G to T substitution at nucleotide position 860, causing the tryptophan (W) at amino acid position 287 to be replaced by a leucine (L). 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	Uncertain	0.53
BayesDel_addAF	Pathogenic	0.23	D
BayesDel_noAF	Uncertain	0.090
CADD	Pathogenic	28
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.53	.;.;D
Eigen	Pathogenic	0.88
Eigen_PC	Pathogenic	0.77
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Benign	0.80	T;T;T
M_CAP	Benign	0.046	D
MetaRNN	Pathogenic	0.83	D;D;D
MetaSVM	Uncertain	-0.033	T
MutationAssessor	Uncertain	2.8	M;M;M
PrimateAI	Uncertain	0.63	T
PROVEAN	Pathogenic	-12	D;D;D
REVEL	Uncertain	0.47
Sift	Pathogenic	0.0	D;D;D
Sift4G	Pathogenic	0.0	D;D;D
Polyphen		1.0	D;.;D
Vest4		0.57
MutPred		0.75		Gain of glycosylation at S284 (P = 0.3453);Gain of glycosylation at S284 (P = 0.3453);Gain of glycosylation at S284 (P = 0.3453);
MVP		0.67
MPC		1.1
ClinPred		1.0	D
GERP RS		4.7
Varity_R		0.86
gMVP		0.76

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr6-25916983;