Genetic Variant SLC6A6:p.Pro39Leu (chr3-14443750-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_003043.6(SLC6A6):c.116C>T(p.Pro39Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000291 in 1,613,988 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: 𝑓 0.000046 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

SLC6A6
NM_003043.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.85

Publications

0 publications found

Variant links:

Genes affected

SLC6A6 (HGNC:11052): (solute carrier family 6 member 6) This gene encodes a multi-pass membrane protein that is a member of a family of sodium and chloride-ion dependent transporters. The encoded protein transports taurine and beta-alanine. There is a pseudogene for this gene on chromosome 21. Alternative splicing results in multiple transcript variants. [provided by RefSeq, May 2013]

SLC6A6 Gene-Disease associations (from GenCC):

hypotaurinemic retinal degeneration and cardiomyopathy
Inheritance: AR Classification: LIMITED Submitted by: ClinGen

SLC6A6 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.13476595).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLC6A6	NM_003043.6 link	c.116C>T	p.Pro39Leu	missense_variant	Exon 3 of 15	ENST00000622186.5	NP_003034.2	P31641-1B4E140Q59GD7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SLC6A6	ENST00000622186.5 link	c.116C>T	p.Pro39Leu	missense_variant	Exon 3 of 15	1	NM_003043.6	ENSP00000480890.1		P31641-1

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152162

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000169

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:

0.0000239

AC:

AN:

251482

AF XY:

0.0000221

show subpopulations

Gnomad AFR exome

AF:

0.000123

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000274

AC:

AN:

1461708

Hom.:

Cov.:

AF XY:

0.0000275

AC XY:

AN XY:

727188

show subpopulations

African (AFR)

AF:

0.000119

AC:

AN:

33474

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000580

AC:

AN:

86252

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.000173

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000252

AC:

AN:

1111844

Other (OTH)

AF:

0.0000331

AC:

AN:

60390

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.486

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:

0.0000460

AC:

AN:

152280

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74460

show subpopulations

African (AFR)

AF:

0.000168

AC:

AN:

41560

American (AMR)

AF:

0.00

AC:

AN:

15298

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4818

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10606

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68026

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.461

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000151

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 07, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.116C>T (p.P39L) alteration is located in exon 3 (coding exon 1) of the SLC6A6 gene. This alteration results from a C to T substitution at nucleotide position 116, causing the proline (P) at amino acid position 39 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.30

CADD

Uncertain

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.15

T;.;.;T

Eigen

Benign

-0.21

Eigen_PC

Benign

-0.0019

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.87

D;D;T;T

M_CAP

Uncertain

0.10

MetaRNN

Benign

0.13

T;T;T;T

MetaSVM

Benign

-0.92

MutationAssessor

Benign

0.0

N;.;N;.

PhyloP100

5.9

PrimateAI

Uncertain

0.73

PROVEAN

Benign

-1.4

.;.;.;N

REVEL

Benign

0.21

Sift

Benign

0.28

.;.;.;T

Sift4G

Benign

0.16

T;T;T;T

Polyphen

0.0010

B;.;.;.

Vest4

0.60

MutPred

0.28

Loss of catalytic residue at P38 (P = 0.0121);.;Loss of catalytic residue at P38 (P = 0.0121);Loss of catalytic residue at P38 (P = 0.0121);

MVP

0.068

ClinPred

0.51

GERP RS

4.8

Varity_R

0.13

gMVP

0.41

Mutation Taster

=37/63

disease causing

(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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over