1-110167150-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM2PP2PP3_Moderate

The NM_001010898.4(SLC6A17):c.221T>C(p.Ile74Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000031 in 1,613,504 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

SLC6A17
NM_001010898.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.02

Variant links:

Genes affected

SLC6A17 (HGNC:31399): (solute carrier family 6 member 17) The protein encoded by this gene is a member of the SLC6 family of transporters, which are responsible for the presynaptic uptake of most neurotransmitters. The encoded vesicular transporter is selective for proline, glycine, leucine and alanine. In mouse, the strongest expression of this gene was in cortical and hippocampal tissues where expression increased during embryonic brain development and peaked postnatally. Defects in this gene cause a form of autosomal recessive intellectual disability. [provided by RefSeq, Jul 2017]

SLC6A17 links:

SLC6A17-AS1 (HGNC:41279): (SLC6A17 antisense RNA 1)

SLC6A17-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP2

Missense variant where missense usually causes diseases, SLC6A17

PP3

MetaRNN computational evidence supports a deleterious effect, 0.849

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SLC6A17	NM_001010898.4 linkuse as main transcript	c.221T>C	p.Ile74Thr	missense_variant	2/12	ENST00000331565.5
SLC6A17-AS1	NR_183667.1 linkuse as main transcript	n.469A>G		non_coding_transcript_exon_variant	2/3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
SLC6A17	ENST00000331565.5 linkuse as main transcript	c.221T>C	p.Ile74Thr	missense_variant	2/12	2	NM_001010898.4	P1
SLC6A17-AS1	ENST00000430098.2 linkuse as main transcript	n.469A>G		non_coding_transcript_exon_variant	2/3	1
SLC6A17-AS1	ENST00000443008.1 linkuse as main transcript	n.454A>G		non_coding_transcript_exon_variant	2/2	3
SLC6A17-AS1	ENST00000418579.1 linkuse as main transcript	n.115A>G		non_coding_transcript_exon_variant	2/2	3

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

151662

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1461842

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727224

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000132

AC:

AN:

151662

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74076

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000453

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

May 05, 2023

The c.221T>C (p.I74T) alteration is located in exon 2 (coding exon 1) of the SLC6A17 gene. This alteration results from a T to C substitution at nucleotide position 221, causing the isoleucine (I) at amino acid position 74 to be replaced by a threonine (T). 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

Pathogenic

0.62

BayesDel_addAF

Pathogenic

0.19

BayesDel_noAF

Uncertain

0.030

Cadd

Pathogenic

Dann

Uncertain

1.0

DEOGEN2

Benign

0.25

Eigen

Uncertain

0.53

Eigen_PC

Uncertain

0.54

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.95

M_CAP

Uncertain

0.17

MetaRNN

Pathogenic

0.85

MetaSVM

Uncertain

0.10

MutationAssessor

Pathogenic

3.2

MutationTaster

Benign

1.0

D;D

PrimateAI

Pathogenic

0.80

PROVEAN

Uncertain

-3.8

REVEL

Pathogenic

0.84

Sift

Uncertain

0.0010

Sift4G

Uncertain

0.0020

Polyphen

0.54

Vest4

0.85

MutPred

0.79

Loss of stability (P = 0.0187);

MVP

0.63

MPC

1.3

ClinPred

0.99

GERP RS

4.7

Varity_R

0.76

gMVP

0.55

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