Genetic Variant SYT11:p.Tyr53His (chr1-155868087-T-C) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_152280.5(SYT11):c.157T>C(p.Tyr53His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000752 in 1,461,878 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 0.0000075 ( 0 hom. )

Consequence

SYT11
NM_152280.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.99

Publications

0 publications found

Variant links:

Genes affected

SYT11 (HGNC:19239): (synaptotagmin 11) This gene is a member of the synaptotagmin gene family and encodes a protein similar to other family members that are known calcium sensors and mediate calcium-dependent regulation of membrane trafficking in synaptic transmission. The encoded protein is also a substrate for ubiquitin-E3-ligase parkin. The gene has previously been referred to as synaptotagmin XII but has been renamed synaptotagmin XI to be consistent with mouse and rat official nomenclature. [provided by RefSeq, Apr 2010]

SYT11 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SYT11	NM_152280.5 link	c.157T>C	p.Tyr53His	missense_variant	Exon 2 of 4	ENST00000368324.5	NP_689493.3	Q9BT88
SYT11	XM_017000759.3 link	c.157T>C	p.Tyr53His	missense_variant	Exon 2 of 4		XP_016856248.1
SYT11	XM_005245014.4 link	c.157T>C	p.Tyr53His	missense_variant	Exon 2 of 4		XP_005245071.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SYT11	ENST00000368324.5 link	c.157T>C	p.Tyr53His	missense_variant	Exon 2 of 4	1	NM_152280.5	ENSP00000357307.4		Q9BT88

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000752

AC:

AN:

1461878

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

727238

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33478

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000809

AC:

AN:

1112006

Other (OTH)

AF:

0.0000166

AC:

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.484

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 19, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.157T>C (p.Y53H) alteration is located in exon 2 (coding exon 2) of the SYT11 gene. This alteration results from a T to C substitution at nucleotide position 157, causing the tyrosine (Y) at amino acid position 53 to be replaced by a histidine (H). 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

0.87

BayesDel_addAF

Uncertain

0.048

BayesDel_noAF

Benign

-0.17

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.34

Eigen

Pathogenic

0.72

Eigen_PC

Pathogenic

0.71

FATHMM_MKL

Uncertain

0.97

LIST_S2

Uncertain

0.91

M_CAP

Benign

0.018

MetaRNN

Uncertain

0.62

MetaSVM

Benign

-0.66

MutationAssessor

Uncertain

2.1

PhyloP100

8.0

PrimateAI

Uncertain

0.76

PROVEAN

Benign

-1.2

REVEL

Benign

0.27

Sift

Benign

0.13

Sift4G

Benign

0.20

Polyphen

1.0

Vest4

0.66

MutPred

0.46

Gain of disorder (P = 0.0216);

MVP

0.19

MPC

1.5

ClinPred

0.87

GERP RS

5.5

Varity_R

0.20

gMVP

0.80

Mutation Taster

=61/39

polymorphism

(source)

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

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1-155868087-T-C

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over