1-209965724-G-A

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_Strong BP6_Moderate BA1

The NM_001146262.4(SYT14):c.61+12968G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.658 in 151,966 control chromosomes in the GnomAD database, including 33,816 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

• Frequency: Genomes: 𝑓 0.66 (33816 hom., cov: 31)
• Consequence: SYT14 NM_001146262.4 intron
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -2.21

Genes affected

SYT14 (HGNC:23143): (synaptotagmin 14) This gene is a member of the synaptotagmin gene family and encodes a protein similar to other family members that mediate membrane trafficking in synaptic transmission. The encoded protein is a calcium-independent synaptotagmin. Mutations in this gene are a cause of autosomal recessive spinocerebellar ataxia-11 (SCAR11), and a t(1;3) translocation of this gene has been associated with neurodevelopmental abnormalities. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene, and a pseudogene of this gene is located on the long arm of chromosome 4. [provided by RefSeq, Dec 2011]

ACMG classification

Verdict is Benign. Variant got -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.97).
• BP6: Variant 1-209965724-G-A is Benign according to our data. Variant chr1-209965724-G-A is described in ClinVar as [Benign]. Clinvar id is 1254624.Status of the report is criteria_provided_single_submitter, 1 stars.
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.833 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SYT14	NM_001146262.4	c.61+12968G>A		intron_variant		ENST00000367019.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SYT14	ENST00000367019.6	c.61+12968G>A		intron_variant		1	NM_001146262.4

Frequencies

GnomAD3 genomes AF: 0.657 AC: 99817 AN: 151848 Hom.: 33769 Cov.: 31

Gnomad AFR AF: 0.785

Gnomad AMI AF: 0.601

Gnomad AMR AF: 0.733

Gnomad ASJ AF: 0.591

Gnomad EAS AF: 0.854

Gnomad SAS AF: 0.627

Gnomad FIN AF: 0.497

Gnomad MID AF: 0.604

Gnomad NFE AF: 0.579

Gnomad OTH AF: 0.664

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.658 AC: 99920 AN: 151966 Hom.: 33816 Cov.: 31 AF XY: 0.657 AC XY: 48802 AN XY: 74270

Gnomad4 AFR AF: 0.785

Gnomad4 AMR AF: 0.734

Gnomad4 ASJ AF: 0.591

Gnomad4 EAS AF: 0.854

Gnomad4 SAS AF: 0.627

Gnomad4 FIN AF: 0.497

Gnomad4 NFE AF: 0.579

Gnomad4 OTH AF: 0.668

Alfa AF: 0.609 Hom.: 3606

Bravo AF: 0.688

Asia WGS AF: 0.738 AC: 2563 AN: 3476

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

Apr 13, 2021

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.97
Cadd	Benign	0.47
Dann	Benign	0.65

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

Other links and lift over

dbSNP: rs10779518; hg19: chr1-210139069;