chr1-110167151-T-G

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001010898.4(SLC6A17):c.222T>G(p.Ile74Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000248 in 1,613,592 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I74T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 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: -2.25

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 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLC6A17	NM_001010898.4 link	c.222T>G	p.Ile74Met	missense_variant	Exon 2 of 12	ENST00000331565.5	NP_001010898.1	Q9H1V8
SLC6A17-AS1	NR_183667.1 link	n.468A>C		non_coding_transcript_exon_variant	Exon 2 of 3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SLC6A17	ENST00000331565.5 link	c.222T>G	p.Ile74Met	missense_variant	Exon 2 of 12	2	NM_001010898.4	ENSP00000330199.3	Q9H1V8
SLC6A17-AS1	ENST00000430098.2 link	n.468A>C		non_coding_transcript_exon_variant	Exon 2 of 3	1
SLC6A17-AS1	ENST00000418579.1 link	n.114A>C		non_coding_transcript_exon_variant	Exon 2 of 2	3
SLC6A17-AS1	ENST00000443008.1 link	n.453A>C		non_coding_transcript_exon_variant	Exon 2 of 2	3

Frequencies

GnomAD3 genomes

AF:

0.00000659

AC:

AN:

151748

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251340

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135866

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000880

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1461844

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727226

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000270

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000659

AC:

AN:

151748

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74110

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000756

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 13, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.222T>G (p.I74M) alteration is located in exon 2 (coding exon 1) of the SLC6A17 gene. This alteration results from a T to G substitution at nucleotide position 222, causing the isoleucine (I) at amino acid position 74 to be replaced by a methionine (M). 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

Uncertain

0.54

BayesDel_addAF

Benign

-0.029

BayesDel_noAF

Benign

-0.28

CADD

Benign

7.1

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.47

Eigen

Benign

-0.53

Eigen_PC

Benign

-0.70

FATHMM_MKL

Benign

0.11

LIST_S2

Uncertain

0.92

M_CAP

Uncertain

0.17

MetaRNN

Uncertain

0.66

MetaSVM

Uncertain

-0.24

MutationAssessor

Benign

1.8

PrimateAI

Uncertain

0.68

PROVEAN

Benign

-2.3

REVEL

Uncertain

0.61

Sift

Uncertain

0.0010

Sift4G

Uncertain

0.0030

Polyphen

0.95

Vest4

0.62

MutPred

0.74

Gain of sheet (P = 0.1208);

MVP

0.36

MPC

1.4

ClinPred

0.85

GERP RS

-3.8

Varity_R

0.65

gMVP

0.50

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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