Variant 6-158665550-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001242394.2(SYTL3):c.266C>T(p.Ala89Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000398 in 1,584,616 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000038 ( 1 hom. )

Consequence

SYTL3
NM_001242394.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.96

Variant links:

Genes affected

SYTL3 (HGNC:15587): (synaptotagmin like 3) The protein encoded by this gene belongs to a family of peripheral membrane proteins that play a role in vesicular trafficking. This protein binds phospholipids in the presence of calcium ions. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2016]

SYTL3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.054231912).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SYTL3	NM_001242394.2 linkuse as main transcript	c.266C>T	p.Ala89Val	missense_variant	5/18	ENST00000611299.5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SYTL3	ENST00000611299.5 linkuse as main transcript	c.266C>T	p.Ala89Val	missense_variant	5/18	5	NM_001242394.2	P1	Q4VX76-1
SYTL3	ENST00000360448.8 linkuse as main transcript	c.266C>T	p.Ala89Val	missense_variant	6/19	5		P1	Q4VX76-1
SYTL3	ENST00000367081.7 linkuse as main transcript	c.266C>T	p.Ala89Val	missense_variant	5/16	5			Q4VX76-2

Frequencies

GnomAD3 genomes

AF:

0.0000591

AC:

AN:

152168

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:

0.00103

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000702

AC:

AN:

199560

Hom.:

AF XY:

0.000103

AC XY:

AN XY:

106816

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:

0.000432

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000343

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000377

AC:

AN:

1432330

Hom.:

Cov.:

AF XY:

0.0000451

AC XY:

AN XY:

709402

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:

0.000354

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000219

Gnomad4 OTH exome

AF:

0.0000168

GnomAD4 genome

AF:

0.0000591

AC:

AN:

152286

Hom.:

Cov.:

AF XY:

0.0000537

AC XY:

AN XY:

74448

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00103

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000329

Hom.:

Bravo

AF:

0.00000756

ExAC

AF:

0.0000998

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

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

Jun 23, 2023

The c.266C>T (p.A89V) alteration is located in exon 5 (coding exon 2) of the SYTL3 gene. This alteration results from a C to T substitution at nucleotide position 266, causing the alanine (A) at amino acid position 89 to be replaced by a valine (V). 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

0.10

BayesDel_addAF

Benign

-0.16

BayesDel_noAF

Benign

-0.47

Cadd

Benign

Dann

Uncertain

0.99

Eigen

Benign

-0.70

Eigen_PC

Benign

-0.73

FATHMM_MKL

Benign

0.10

LIST_S2

Uncertain

0.89

D;.;T;.

M_CAP

Benign

0.054

MetaRNN

Benign

0.054

T;T;T;T

MetaSVM

Benign

-0.82

MutationAssessor

Benign

1.0

L;L;L;L

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.39

Sift4G

Benign

0.076

T;T;T;T

Polyphen

0.089

B;B;B;B

Vest4

0.31

MVP

0.33

MPC

0.019

ClinPred

0.040

GERP RS

2.9

Varity_R

0.064

gMVP

0.21

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