1-210155872-G-A

Position:

• chr1-210155872-G-A

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM2 PP3_Strong PP5

The NM_001146262.4(SYT14):​c.1316G>A​(p.Gly439Asp) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 12/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G439S) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: SYT14 NM_001146262.4 missense
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 9.52

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]

SYT14 (HGNC:):

ACMG classification

Verdict is Likely_pathogenic. Variant got 7 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.959
• PP5: Variant 1-210155872-G-A is Pathogenic according to our data. Variant chr1-210155872-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 30861.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SYT14	NM_001146262.4	c.1316G>A	p.Gly439Asp	missense_variant	7/9	ENST00000367019.6	NP_001139734.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SYT14	ENST00000367019.6	c.1316G>A	p.Gly439Asp	missense_variant	7/9	1	NM_001146262.4	ENSP00000355986.1
SYT14	ENST00000534859.2	c.1082G>A	p.Gly361Asp	missense_variant	4/6	1		ENSP00000442891.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Autosomal recessive spinocerebellar ataxia 11 Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Aug 12, 2011

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.41	D
BayesDel_noAF	Pathogenic	0.35
CADD	Pathogenic	31
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.55	.;.;.;.;D;.
Eigen	Pathogenic	0.91
Eigen_PC	Pathogenic	0.83
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	1.0	D;D;D;D;D;.
M_CAP	Pathogenic	0.30	D
MetaRNN	Pathogenic	0.96	D;D;D;D;D;D
MetaSVM	Uncertain	0.55	D
MutationAssessor	Pathogenic	3.2	M;.;.;.;M;.
PrimateAI	Pathogenic	0.80	D
PROVEAN	Pathogenic	-7.0	D;D;.;.;D;D
REVEL	Pathogenic	0.83
Sift	Uncertain	0.0010	D;D;.;.;D;D
Sift4G	Pathogenic	0.0	D;D;.;D;D;D
Polyphen		1.0	D;.;.;.;D;.
Vest4		0.95
MutPred		0.85		Gain of ubiquitination at K443 (P = 0.0818);.;.;.;Gain of ubiquitination at K443 (P = 0.0818);.;
MVP		0.84
ClinPred		1.0	D
GERP RS		4.8
Varity_R		0.98
gMVP		0.95

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: rs387907033; hg19: chr1-210329217;