Variant chr11-85696222-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_206927.4(SYTL2):c.6535A>G(p.Asn2179Asp) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,850 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

SYTL2
NM_206927.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.93

Variant links:

Genes affected

SYTL2 (HGNC:15585): (synaptotagmin like 2) The protein encoded by this gene is a synaptotagmin-like protein (SLP) that belongs to a C2 domain-containing protein family. The SLP homology domain (SHD) of this protein has been shown to specifically bind the GTP-bound form of Ras-related protein Rab-27A (RAB27A). This protein plays a role in RAB27A-dependent vesicle trafficking and controls melanosome distribution in the cell periphery. Alternative splicing results in multiple transcript variants encoding distinct isoforms.[provided by RefSeq, Jun 2009]

SYTL2 links:

SYTL2 (HGNC:):

SYTL2 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.757

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SYTL2	NM_206927.4 linkuse as main transcript	c.6535A>G	p.Asn2179Asp	missense_variant	19/20	ENST00000359152.10	NP_996810.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SYTL2	ENST00000359152.10 linkuse as main transcript	c.6535A>G	p.Asn2179Asp	missense_variant	19/20	1	NM_206927.4	ENSP00000352065.7		A0A8J9FM55

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251332

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135836

show subpopulations

Gnomad AFR exome

AF:

0.0000615

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:

6.84e-7

AC:

AN:

1461850

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727222

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

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:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

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

Nov 13, 2024

The c.3634A>G (p.N1212D) alteration is located in exon 12 (coding exon 12) of the SYTL2 gene. This alteration results from a A to G substitution at nucleotide position 3634, causing the asparagine (N) at amino acid position 1212 to be replaced by an aspartic acid (D). 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

Pathogenic

0.65

BayesDel_addAF

Benign

-0.27

BayesDel_noAF

Benign

-0.44

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.21

.;.;.;.;.;.;.;T;T;.;.;.;.

Eigen

Uncertain

0.65

Eigen_PC

Pathogenic

0.69

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.83

T;T;T;.;.;T;T;T;T;T;T;T;.

M_CAP

Benign

0.0051

MetaRNN

Pathogenic

0.76

D;D;D;D;D;D;D;D;D;D;D;D;D

MetaSVM

Benign

-1.2

MutationAssessor

Uncertain

2.4

.;.;.;.;.;.;.;.;M;.;.;.;.

PrimateAI

Uncertain

0.53

PROVEAN

Uncertain

-4.0

.;D;.;D;D;D;D;.;D;D;D;.;D

REVEL

Uncertain

0.31

Sift

Benign

0.11

.;T;.;T;D;D;D;.;T;D;T;.;T

Sift4G

Uncertain

0.025

D;D;D;D;T;T;T;D;D;T;D;D;D

Polyphen

0.86

P;D;.;P;.;.;P;.;D;P;D;.;D

Vest4

0.51

MutPred

0.63

.;.;.;.;.;.;.;.;Gain of phosphorylation at Y870 (P = 0.1489);.;.;.;.;

MVP

0.43

MPC

0.093

ClinPred

0.94

GERP RS

6.0

Varity_R

0.43

gMVP

0.40

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