3-12188015-TTC-TTCTC

Position:

• chr3-12188015-TTC-TTCTC

Variant summary

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

The NM_133625.6(SYN2):​c.1613+405_1613+406dup variant causes a intron change involving the alteration of a non-conserved nucleotide. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 0)
• Consequence: SYN2 NM_133625.6 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.614

Genes affected

SYN2 (HGNC:11495): (synapsin II) This gene is a member of the synapsin gene family. Synapsins encode neuronal phosphoproteins which associate with the cytoplasmic surface of synaptic vesicles. Family members are characterized by common protein domains, and they are implicated in synaptogenesis and the modulation of neurotransmitter release, suggesting a potential role in several neuropsychiatric diseases. This member of the synapsin family encodes a neuron-specific phosphoprotein that selectively binds to small synaptic vesicles in the presynaptic nerve terminal. Polymorphisms in this gene are associated with abnormal presynaptic function and related neuronal disorders, including autism, epilepsy, bipolar disorder and schizophrenia. Alternative splicing of this gene results in multiple transcript variants. The tissue inhibitor of metalloproteinase 4 gene is located within an intron of this gene and is transcribed in the opposite direction. [provided by RefSeq, Feb 2014]

(HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SYN2	NM_133625.6	c.1613+405_1613+406dup		intron_variant		ENST00000621198.5
SYN2	XM_006713312.5	c.1130+405_1130+406dup		intron_variant
SYN2	XM_006713313.3	c.842+405_842+406dup		intron_variant
SYN2	XM_017007087.2	c.941+405_941+406dup		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SYN2	ENST00000621198.5	c.1613+405_1613+406dup		intron_variant		1	NM_133625.6	P2
	ENST00000690965.1	n.527+4352_527+4353insGA		intron_variant, non_coding_transcript_variant
SYN2	ENST00000439861.5	n.1232+405_1232+406dup		intron_variant, non_coding_transcript_variant		2

Frequencies

GnomAD3 genomes Cov.: 0

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

GnomAD4 genome Cov.: 0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs2307973; hg19: chr3-12229515;