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GeneBe

12-100380957-G-C

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_139319.3(SLC17A8):​c.354+4G>C variant causes a splice donor region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000103 in 1,461,674 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

SLC17A8
NM_139319.3 splice_donor_region, intron

Scores

2
Splicing: ADA: 0.00002740
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.494
Variant links:
Genes affected
SLC17A8 (HGNC:20151): (solute carrier family 17 member 8) This gene encodes a vesicular glutamate transporter. The encoded protein transports the neurotransmitter glutamate into synaptic vesicles before it is released into the synaptic cleft. Mutations in this gene are the cause of autosomal-dominant nonsyndromic type 25 deafness. Alternate splicing results in multiple transcript variants.[provided by RefSeq, May 2010]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.81).
BS2
High AC in GnomAdExome4 at 15 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SLC17A8NM_139319.3 linkuse as main transcriptc.354+4G>C splice_donor_region_variant, intron_variant ENST00000323346.10
SLC17A8NM_001145288.2 linkuse as main transcriptc.354+4G>C splice_donor_region_variant, intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SLC17A8ENST00000323346.10 linkuse as main transcriptc.354+4G>C splice_donor_region_variant, intron_variant 1 NM_139319.3 P1Q8NDX2-1
SLC17A8ENST00000392989.3 linkuse as main transcriptc.354+4G>C splice_donor_region_variant, intron_variant 1 Q8NDX2-2

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.0000239
AC:
6
AN:
251260
Hom.:
0
AF XY:
0.0000368
AC XY:
5
AN XY:
135800
show subpopulations
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 SAS exome
AF:
0.000196
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000103
AC:
15
AN:
1461674
Hom.:
0
Cov.:
31
AF XY:
0.0000179
AC XY:
13
AN XY:
727150
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000151
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
31

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineNov 19, 2013Variant classified as Uncertain Significance - Favor Benign. The 354+4G>C varian t in SLC17A8 has not been previously reported in individuals with hearing loss o r in large population studies. This variant is located in the 5' splice region but not in the invariant (+1/2) positions of the splice site consensus sequence and computational tools do not suggest and impact to splicing. However, this inf ormation is not predictive enough to rule out pathogenicity. In summary, the cli nical significance of this variant cannot be determined with certainty; however based upon the computational data, we would lean towards a more likely benign ro le. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.81
CADD
Benign
13
DANN
Benign
0.61

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000027
dbscSNV1_RF
Benign
0.022
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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs727504846; hg19: chr12-100774735; API