Genetic Variant SLC1A3:c.182-8T>G (chr5-36629442-T-G) – ACMG Classification: Benign (-8 pts)

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_004172.5(SLC1A3):c.182-8T>G variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000747 in 1,607,444 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000076 ( 0 hom. )

Consequence

SLC1A3
NM_004172.5 splice_region, intron

Scores

Splicing: ADA: 0.00001248

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -2.69

Publications

0 publications found

Variant links:

Genes affected

SLC1A3 (HGNC:10941): (solute carrier family 1 member 3) This gene encodes a member of a member of a high affinity glutamate transporter family. This gene functions in the termination of excitatory neurotransmission in central nervous system. Mutations are associated with episodic ataxia, Type 6. Alternative splicing results in multiple transcript variants.[provided by RefSeq, Feb 2014]

SLC1A3 Gene-Disease associations (from GenCC):

episodic ataxia type 6
Inheritance: AD, Unknown Classification: DEFINITIVE, STRONG, SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, ClinGen, Laboratory for Molecular Medicine

SLC1A3 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.91).

BS2

High AC in GnomAdExome4 at 11 AD,Unknown gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLC1A3	NM_004172.5 link	c.182-8T>G		splice_region_variant, intron_variant	Intron 2 of 9	ENST00000265113.9	NP_004163.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SLC1A3	ENST00000265113.9 link	c.182-8T>G		splice_region_variant, intron_variant	Intron 2 of 9	1	NM_004172.5	ENSP00000265113.4

Frequencies

GnomAD3 genomes

AF:

0.00000662

AC:

AN:

151068

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000148

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000755

AC:

AN:

1456376

Hom.:

Cov.:

AF XY:

0.00000414

AC XY:

AN XY:

724514

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33126

American (AMR)

AF:

0.00

AC:

AN:

44190

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26034

East Asian (EAS)

AF:

0.00

AC:

AN:

39636

South Asian (SAS)

AF:

0.00

AC:

AN:

85584

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53064

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5698

European-Non Finnish (NFE)

AF:

0.00000992

AC:

AN:

1108914

Other (OTH)

AF:

0.00

AC:

AN:

60130

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.434

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00000662

AC:

AN:

151068

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

73710

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41180

American (AMR)

AF:

0.00

AC:

AN:

15174

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3462

East Asian (EAS)

AF:

0.00

AC:

AN:

5150

South Asian (SAS)

AF:

0.00

AC:

AN:

4786

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10258

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000148

AC:

AN:

67758

Other (OTH)

AF:

0.00

AC:

AN:

2076

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.91

CADD

Benign

0.041

(source)

DANN

Benign

0.30

PhyloP100

-2.7

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000012

dbscSNV1_RF

Benign

0.010

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over