6-158725554-T-C

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_001242394.2(SYTL3):c.772T>C(p.Cys258Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000601 in 1,614,216 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 Likely benign (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000063 ( 0 hom. )

Consequence

SYTL3
NM_001242394.2 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -1.97

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 -4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.009791464).

BP6

Variant 6-158725554-T-C is Benign according to our data. Variant chr6-158725554-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 2311738.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SYTL3	NM_001242394.2 linkuse as main transcript	c.772T>C	p.Cys258Arg	missense_variant	11/18	ENST00000611299.5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SYTL3	ENST00000611299.5 linkuse as main transcript	c.772T>C	p.Cys258Arg	missense_variant	11/18	5	NM_001242394.2	P1	Q4VX76-1
SYTL3	ENST00000360448.8 linkuse as main transcript	c.772T>C	p.Cys258Arg	missense_variant	12/19	5		P1	Q4VX76-1
SYTL3	ENST00000367081.7 linkuse as main transcript	c.568T>C	p.Cys190Arg	missense_variant	9/16	5			Q4VX76-2

Frequencies

GnomAD3 genomes

AF:

0.0000328

AC:

AN:

152208

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:

0.000577

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.0000915

AC:

AN:

251474

Hom.:

AF XY:

0.000103

AC XY:

AN XY:

135908

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00120

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000629

AC:

AN:

1461890

Hom.:

Cov.:

AF XY:

0.0000578

AC XY:

AN XY:

727244

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00199

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000180

Gnomad4 OTH exome

AF:

0.000182

GnomAD4 genome

AF:

0.0000328

AC:

AN:

152326

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74490

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000578

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000473

Bravo

AF:

0.0000151

ExAC

AF:

0.000107

AC:

Asia WGS

AF:

0.00173

AC:

AN:

3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 14, 2022

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.055

BayesDel_addAF

Benign

-0.61

BayesDel_noAF

Benign

-0.69

Cadd

Benign

0.024

Dann

Benign

0.38

Eigen

Benign

-2.1

Eigen_PC

Benign

-2.1

FATHMM_MKL

Benign

0.0018

LIST_S2

Benign

0.34

T;.;T;.

M_CAP

Benign

0.0067

MetaRNN

Benign

0.0098

T;T;T;T

MetaSVM

Benign

-0.95

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.24

Sift4G

Benign

0.55

T;T;T;T

Polyphen

0.0

B;B;B;B

Vest4

0.035

MutPred

0.34

.;Loss of methylation at K257 (P = 0.0223);Loss of methylation at K257 (P = 0.0223);Loss of methylation at K257 (P = 0.0223);

MVP

0.16

MPC

0.019

ClinPred

0.041

GERP RS

-1.8

Varity_R

0.15

gMVP

0.24

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