NM_139319.3:c.854C>T

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_139319.3(SLC17A8):c.854C>T(p.Thr285Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000124 in 1,613,962 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

SLC17A8
NM_139319.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 1.12

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

nonsyndromic genetic hearing loss
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
autosomal dominant nonsyndromic hearing loss 25
Inheritance: AD, Unknown Classification: STRONG, LIMITED Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae)
autosomal dominant nonsyndromic hearing loss
Inheritance: AD Classification: SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Orphanet

SLC17A8 links:

LOC124903108 (HGNC:):

LOC124903108 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.12058976).

BS2

High AC in GnomAd4 at 6 AD,Unknown gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLC17A8	NM_139319.3 link	c.854C>T	p.Thr285Ile	missense_variant	Exon 7 of 12	ENST00000323346.10	NP_647480.1	Q8NDX2-1
SLC17A8	NM_001145288.2 link	c.854C>T	p.Thr285Ile	missense_variant	Exon 7 of 11		NP_001138760.1	Q8NDX2-2
LOC124903108	XR_007063645.1 link	n.*180C>T		downstream_gene_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SLC17A8	ENST00000323346.10 link	c.854C>T	p.Thr285Ile	missense_variant	Exon 7 of 12	1	NM_139319.3	ENSP00000316909.4	Q8NDX2-1
SLC17A8	ENST00000392989.3 link	c.854C>T	p.Thr285Ile	missense_variant	Exon 7 of 11	1		ENSP00000376715.3	Q8NDX2-2
SLC17A8	ENST00000547922.1 link	n.-188C>T		upstream_gene_variant		3

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152020

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000967

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

GnomAD2 exomes

AF:

0.0000159

AC:

AN:

250806

AF XY:

0.00000738

show subpopulations

Gnomad AFR exome

AF:

0.000185

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000958

AC:

AN:

1461824

Hom.:

Cov.:

AF XY:

0.0000110

AC XY:

AN XY:

727216

show subpopulations

African (AFR)

AF:

0.000299

AC:

AN:

33480

American (AMR)

AF:

0.0000224

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39686

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53406

Middle Eastern (MID)

AF:

0.000347

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111980

Other (OTH)

AF:

0.0000166

AC:

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.493

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000394

AC:

AN:

152138

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74372

show subpopulations

African (AFR)

AF:

0.000145

AC:

AN:

41488

American (AMR)

AF:

0.00

AC:

AN:

15270

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5190

South Asian (SAS)

AF:

0.00

AC:

AN:

4814

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10576

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68014

Other (OTH)

AF:

0.00

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000109

Hom.:

Bravo

AF:

0.0000793

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 05, 2013

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Variant classified as Uncertain Significance - Favor Benign. The Thr285Ile varia nt in SLC17A8 has not been reported in individuals with hearing loss or in large population studies. Computational analyses (biochemical amino acid properties, conservation, AlignGVGD, PolyPhen2, and SIFT) suggest that the Thr285Ile variant may not impact the protein, though this information is not predictive enough to rule out pathogenicity. Of note, two distant species (zebra finch and tetraodon ) have an isoleucine (Ile) at this position. In summary, the clinical significan ce of this variant cannot be determined with certainty; however, based upon the conservation and computational data, we lean towards a more like benign role. -

not provided

Uncertain:1

Mar 04, 2019

Athena Diagnostics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.081

BayesDel_addAF

Benign

-0.37

BayesDel_noAF

Benign

-0.49

CADD

Benign

(source)

DANN

Benign

0.77

DEOGEN2

Benign

0.24

T;.

Eigen

Benign

-0.38

Eigen_PC

Benign

-0.17

FATHMM_MKL

Benign

0.64

LIST_S2

Uncertain

0.94

D;D

M_CAP

Benign

0.0061

MetaRNN

Benign

0.12

T;T

MetaSVM

Benign

-0.94

MutationAssessor

Benign

0.50

N;N

PhyloP100

1.1

PrimateAI

Benign

0.48

PROVEAN

Benign

-1.1

N;N

REVEL

Benign

0.087

Sift

Benign

0.36

T;T

Sift4G

Benign

0.29

T;T

Polyphen

0.0

B;B

Vest4

0.23

MVP

0.24

MPC

0.16

ClinPred

0.048

GERP RS

5.9

Varity_R

0.14

gMVP

0.33

Mutation Taster

=80/20

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

NM_139319.3:c.854C>T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over