Genetic Variant SLC6A3:p.Ile379Met (chr5-1414710-G-C) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_001044.5(SLC6A3):c.1137C>G(p.Ile379Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,460,420 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. I379I) has been classified as Benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

SLC6A3
NM_001044.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.02

Publications

0 publications found

Variant links:

Genes affected

SLC6A3 (HGNC:11049): (solute carrier family 6 member 3) This gene encodes a dopamine transporter which is a member of the sodium- and chloride-dependent neurotransmitter transporter family. The 3' UTR of this gene contains a 40 bp tandem repeat, referred to as a variable number tandem repeat or VNTR, which can be present in 3 to 11 copies. Variation in the number of repeats is associated with idiopathic epilepsy, attention-deficit hyperactivity disorder, dependence on alcohol and cocaine, susceptibility to Parkinson disease and protection against nicotine dependence.[provided by RefSeq, Nov 2009]

SLC6A3 Gene-Disease associations (from GenCC):

classic dopamine transporter deficiency syndrome
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
SLC6A3-related dopamine transporter deficiency syndrome
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
parkinsonism-dystonia, infantile
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

SLC6A3 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.97

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLC6A3	NM_001044.5 link	c.1137C>G	p.Ile379Met	missense_variant	Exon 8 of 15	ENST00000270349.12	NP_001035.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SLC6A3	ENST00000270349.12 link	c.1137C>G	p.Ile379Met	missense_variant	Exon 8 of 15	1	NM_001044.5	ENSP00000270349.9

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1460420

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726520

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33474

American (AMR)

AF:

0.00

AC:

AN:

44692

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26128

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52218

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5754

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1111836

Other (OTH)

AF:

0.00

AC:

AN:

60360

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

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

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.17

BayesDel_addAF

Benign

-0.044

BayesDel_noAF

Benign

-0.30

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.50

Eigen

Benign

-0.083

Eigen_PC

Benign

-0.29

FATHMM_MKL

Benign

0.27

LIST_S2

Benign

0.80

M_CAP

Pathogenic

0.32

MetaRNN

Pathogenic

0.97

MetaSVM

Uncertain

0.072

MutationAssessor

Uncertain

2.4

PhyloP100

-1.0

PrimateAI

Benign

0.44

PROVEAN

Uncertain

-2.7

REVEL

Uncertain

0.52

Sift

Benign

0.054

Sift4G

Uncertain

0.024

Vest4

0.56

ClinPred

0.98

GERP RS

-0.79

Varity_R

0.41

gMVP

0.70

Mutation Taster

=85/15

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.10

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