Variant chrX-38089496-C-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_138780.3(SYTL5):c.740C>A(p.Thr247Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000132 in 1,208,435 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 4 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000099 ( 0 hom., 2 hem., cov: 23)

Exomes 𝑓: 0.0000046 ( 0 hom. 2 hem. )

Consequence

SYTL5
NM_138780.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.501

Variant links:

Genes affected

SYTL5 (HGNC:15589): (synaptotagmin like 5) The protein encoded by this gene belongs to the synaptotagmin-like (Slp) protein family, which contains a unique homology domain at the N-terminus, referred to as the Slp homology domain (SHD). The SHD functions as a binding site for Rab27A, which plays a role in protein transport. Expression of this gene is restricted to placenta and liver, suggesting that it might be involved in Rab27A-dependent membrane trafficking in specific tissues. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2009]

SYTL5 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.059028625).

BS2

High Hemizygotes in GnomAd4 at 2 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SYTL5	NM_138780.3 linkuse as main transcript	c.740C>A	p.Thr247Asn	missense_variant	7/17	ENST00000297875.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SYTL5	ENST00000297875.7 linkuse as main transcript	c.740C>A	p.Thr247Asn	missense_variant	7/17	5	NM_138780.3	P4	Q8TDW5-1
SYTL5	ENST00000456733.2 linkuse as main transcript	c.740C>A	p.Thr247Asn	missense_variant	6/17	1		A1	Q8TDW5-2

Frequencies

GnomAD3 genomes

AF:

0.0000989

AC:

AN:

111229

Hom.:

Cov.:

AF XY:

0.0000598

AC XY:

AN XY:

33429

show subpopulations

Gnomad AFR

AF:

0.000360

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000222

AC:

AN:

180466

Hom.:

AF XY:

0.0000152

AC XY:

AN XY:

65622

show subpopulations

Gnomad AFR exome

AF:

0.000308

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000456

AC:

AN:

1097206

Hom.:

Cov.:

AF XY:

0.00000551

AC XY:

AN XY:

362722

show subpopulations

Gnomad4 AFR exome

AF:

0.000152

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:

0.00

Gnomad4 OTH exome

AF:

0.0000217

GnomAD4 genome

AF:

0.0000989

AC:

AN:

111229

Hom.:

Cov.:

AF XY:

0.0000598

AC XY:

AN XY:

33429

show subpopulations

Gnomad4 AFR

AF:

0.000360

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:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.000166

ExAC

AF:

0.00000824

AC:

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

Jan 08, 2024

The c.740C>A (p.T247N) alteration is located in exon 7 (coding exon 6) of the SYTL5 gene. This alteration results from a C to A substitution at nucleotide position 740, causing the threonine (T) at amino acid position 247 to be replaced by an asparagine (N). 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

0.071

BayesDel_addAF

Benign

-0.73

BayesDel_noAF

Benign

-0.98

CADD

Benign

6.7

DANN

Benign

0.83

DEOGEN2

Benign

0.0098

T;.

FATHMM_MKL

Benign

0.036

LIST_S2

Benign

0.62

T;T

M_CAP

Uncertain

0.11

MetaRNN

Benign

0.059

T;T

MetaSVM

Benign

-0.99

MutationAssessor

Benign

0.0

N;N

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.30

PROVEAN

Benign

-1.1

N;N

REVEL

Benign

0.027

Sift

Benign

0.11

T;T

Sift4G

Benign

0.31

T;T

Polyphen

0.0010

B;.

Vest4

0.031

MVP

0.048

MPC

0.039

ClinPred

0.017

GERP RS

2.0

Varity_R

0.12

gMVP

0.15

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