rs144556614

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_139319.3(SLC17A8):c.705G>A(p.Met235Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000131 in 152,188 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: 𝑓 0.000013 ( 0 hom., cov: 32)

Consequence

SLC17A8
NM_139319.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 10.0

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]

SLC17A8 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

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, 0.788

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SLC17A8	NM_139319.3 linkuse as main transcript	c.705G>A	p.Met235Ile	missense_variant	6/12	ENST00000323346.10
SLC17A8	NM_001145288.2 linkuse as main transcript	c.705G>A	p.Met235Ile	missense_variant	6/11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SLC17A8	ENST00000323346.10 linkuse as main transcript	c.705G>A	p.Met235Ile	missense_variant	6/12	1	NM_139319.3	P1	Q8NDX2-1
SLC17A8	ENST00000392989.3 linkuse as main transcript	c.705G>A	p.Met235Ile	missense_variant	6/11	1			Q8NDX2-2

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152188

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

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

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251246

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135778

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Cov.:

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152188

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74352

show subpopulations

Gnomad4 AFR

AF:

0.0000483

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000189

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.00000824

AC:

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 submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Nov 26, 2013

Variant classified as Uncertain Significance - Favor Benign. The Met235Ile varia nt in SLC17A8 has not been previously reported in individuals with hearing loss, but has been identified in 0.02% (1/4406) of African American chromosomes by th e NHLBI Exome Sequencing Project (http://evs.gs.washington.edu/EVS/; dbSNP rs144 556614). In addition, this variant did not segregate in this individual's siblin g who also has a hearing loss. Computational analyses (biochemical amino acid pr operties, conservation, AlignGVGD, PolyPhen2, and SIFT) suggest that the Met235I le variant may not impact the protein, though this information is not predictive enough to rule out pathogenicity. In summary, the clinical significance of this variant cannot be determined with certainty; however based upon the arguments d escribed above, we would lean towards a more likely benign role. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.99

BayesDel_addAF

Pathogenic

0.17

BayesDel_noAF

Pathogenic

0.19

Cadd

Pathogenic

Dann

Uncertain

0.99

DEOGEN2

Uncertain

0.66

D;.

Eigen

Pathogenic

0.73

Eigen_PC

Pathogenic

0.71

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.98

D;D

M_CAP

Benign

0.033

MetaRNN

Pathogenic

0.79

D;D

MetaSVM

Benign

-0.34

MutationAssessor

Benign

2.0

M;M

MutationTaster

Benign

1.0

D;D

PrimateAI

Uncertain

0.69

PROVEAN

Uncertain

-3.1

D;D

REVEL

Uncertain

0.52

Sift

Uncertain

0.025

D;D

Sift4G

Benign

0.075

T;T

Polyphen

0.89

P;P

Vest4

0.78

MutPred

0.75

Loss of stability (P = 0.3989);Loss of stability (P = 0.3989);

MVP

0.72

MPC

0.61

ClinPred

0.95

GERP RS

5.5

Varity_R

0.61

gMVP

0.89

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

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

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over