1-110174076-T-C

Position:

• chr1-110174076-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2 PP2 BP4_Moderate

The NM_001010898.4(SLC6A17):​c.548T>C​(p.Val183Ala) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: SLC6A17 NM_001010898.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.15

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), SLC6A17. . Gene score misZ 2.3852 (greater than the threshold 3.09). Trascript score misZ 3.6036 (greater than threshold 3.09). GenCC has associacion of gene with progressive essential tremor-speech impairment-facial dysmorphism-intellectual disability-abnormal behavior syndrome, schizophrenia.
• BP4: Computational evidence support a benign effect (MetaRNN=0.113241285).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SLC6A17	NM_001010898.4	c.548T>C	p.Val183Ala	missense_variant	4/12	ENST00000331565.5	NP_001010898.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SLC6A17	ENST00000331565.5	c.548T>C	p.Val183Ala	missense_variant	4/12	2	NM_001010898.4	ENSP00000330199	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 23, 2024

The c.548T>C (p.V183A) alteration is located in exon 4 (coding exon 3) of the SLC6A17 gene. This alteration results from a T to C substitution at nucleotide position 548, causing the valine (V) at amino acid position 183 to be replaced by an alanine (A). 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	0.14
BayesDel_addAF	Benign	-0.18	T
BayesDel_noAF	Benign	-0.49
CADD	Benign	22
DANN	Uncertain	0.99
DEOGEN2	Benign	0.020	T
Eigen	Benign	-0.44
Eigen_PC	Benign	-0.29
FATHMM_MKL	Uncertain	0.84	D
LIST_S2	Benign	0.63	T
M_CAP	Benign	0.013	T
MetaRNN	Benign	0.11	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.34	N
MutationTaster	Benign	1.0	N;N
PrimateAI	Benign	0.43	T
PROVEAN	Benign	-1.2	N
REVEL	Benign	0.18
Sift	Benign	0.27	T
Sift4G	Benign	0.22	T
Polyphen		0.0050	B
Vest4		0.11
MutPred		0.51		Gain of phosphorylation at S188 (P = 0.2585);
MVP		0.42
MPC		0.70
ClinPred		0.57	D
GERP RS		3.5
Varity_R		0.097
gMVP		0.44

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr1-110716698;