Variant 5-1232305-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_182632.3(SLC6A18):c.247C>T(p.Arg83Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000121 in 1,612,456 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000085 ( 0 hom., cov: 34)

Exomes 𝑓: 0.00012 ( 1 hom. )

Consequence

SLC6A18
NM_182632.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.87

Variant links:

Genes affected

SLC6A18 (HGNC:26441): (solute carrier family 6 member 18) The SLC6 family of proteins, which includes SLC6A18, act as specific transporters for neurotransmitters, amino acids, and osmolytes like betaine, taurine, and creatine. SLC6 proteins are sodium cotransporters that derive the energy for solute transport from the electrochemical gradient for sodium ions (Hoglund et al., 2005 [PubMed 16125675]).[supplied by OMIM, Apr 2010]

SLC6A18 links:

SLC6A18 (HGNC:):

SLC6A18 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.938

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SLC6A18	NM_182632.3 linkuse as main transcript	c.247C>T	p.Arg83Trp	missense_variant	2/12	ENST00000324642.4	NP_872438.2	Q96N87

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SLC6A18	ENST00000324642.4 linkuse as main transcript	c.247C>T	p.Arg83Trp	missense_variant	2/12	1	NM_182632.3	ENSP00000323549.3		Q96N87
SLC6A18	ENST00000513607.2 linkuse as main transcript	n.316C>T		non_coding_transcript_exon_variant	2/3	3

Frequencies

GnomAD3 genomes

AF:

0.0000854

AC:

AN:

152238

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000620

Gnomad FIN

AF:

0.0000941

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000118

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000231

AC:

AN:

246522

Hom.:

AF XY:

0.000269

AC XY:

AN XY:

134028

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000292

Gnomad ASJ exome

AF:

0.000101

Gnomad EAS exome

AF:

0.0000550

Gnomad SAS exome

AF:

0.00125

Gnomad FIN exome

AF:

0.0000473

Gnomad NFE exome

AF:

0.000117

Gnomad OTH exome

AF:

0.000333

GnomAD4 exome

AF:

0.000125

AC:

182

AN:

1460100

Hom.:

Cov.:

AF XY:

0.000146

AC XY:

106

AN XY:

726306

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000448

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.000825

Gnomad4 FIN exome

AF:

0.0000381

Gnomad4 NFE exome

AF:

0.0000845

Gnomad4 OTH exome

AF:

0.000133

GnomAD4 genome

AF:

0.0000853

AC:

AN:

152356

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74492

show subpopulations

Gnomad4 AFR

AF:

0.0000240

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000621

Gnomad4 FIN

AF:

0.0000941

Gnomad4 NFE

AF:

0.000118

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000278

Hom.:

Bravo

AF:

0.0000378

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000190

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000218

EpiControl

AF:

0.000119

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

Ambry Genetics

Aug 28, 2023

The c.247C>T (p.R83W) alteration is located in exon 2 (coding exon 2) of the SLC6A18 gene. This alteration results from a C to T substitution at nucleotide position 247, causing the arginine (R) at amino acid position 83 to be replaced by a tryptophan (W). 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

0.23

BayesDel_addAF

Benign

-0.030

BayesDel_noAF

Pathogenic

0.14

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.58

Eigen

Uncertain

0.54

Eigen_PC

Uncertain

0.37

FATHMM_MKL

Uncertain

0.78

LIST_S2

Pathogenic

0.99

M_CAP

Pathogenic

0.33

MetaRNN

Pathogenic

0.94

MetaSVM

Uncertain

0.36

MutationAssessor

Pathogenic

4.4

MutationTaster

Benign

0.99

D;D

PrimateAI

Benign

0.35

PROVEAN

Pathogenic

-7.4

REVEL

Pathogenic

0.66

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.87

MVP

0.92

MPC

0.69

ClinPred

0.89

GERP RS

3.5

Varity_R

0.93

gMVP

0.76

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