12-6464744-C-T

Variant summary

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

The ENST00000361716.8(VAMP1):c.*132G>A variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00811 in 1,519,884 control chromosomes in the GnomAD database, including 826 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

• Frequency:
  • Genomes: 𝑓 0.042 (428 hom., cov: 31)
  • Exomes 𝑓: 0.0044 (398 hom.)
• Consequence: VAMP1 ENST00000361716.8 3_prime_UTR
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -0.0230

Genes affected

VAMP1 (HGNC:12642): (vesicle associated membrane protein 1) Synapotobrevins, syntaxins, and the synaptosomal-associated protein SNAP25 are the main components of a protein complex involved in the docking and/or fusion of synaptic vesicles with the presynaptic membrane. The protein encoded by this gene is a member of the vesicle-associated membrane protein (VAMP)/synaptobrevin family. Mutations in this gene are associated with autosomal dominant spastic ataxia 1. Multiple alternative splice variants have been described, but the full-length nature of some variants has not been defined. [provided by RefSeq, Jul 2014]

TAPBPL (HGNC:30683): (TAP binding protein like) Tapasin, or TAPBP (MIM 601962), is a member of the variable-constant Ig superfamily that links major histocompatibility complex (MHC) class I molecules to the transporter associated with antigen processing (TAP; see MIM 170260) in the endoplasmic reticulum (ER). The TAPBP gene is located near the MHC complex on chromosome 6p21.3. TAPBPL is a member of the Ig superfamily that is localized on chromosome 12p13.3, a region somewhat paralogous to the MHC.[supplied by OMIM, Mar 2008]

ACMG classification

Verdict is Benign. Variant got -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.8).
• BP6: Variant 12-6464744-C-T is Benign according to our data. Variant chr12-6464744-C-T is described in ClinVar as [Benign]. Clinvar id is 1267527.Status of the report is criteria_provided_single_submitter, 1 stars.
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.141 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
VAMP1	NM_014231.5	c.340+146G>A		intron_variant		ENST00000396308.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
VAMP1	ENST00000396308.4	c.340+146G>A		intron_variant		2	NM_014231.5	P1

Frequencies

GnomAD3 genomes AF: 0.0416 AC: 6323 AN: 152004 Hom.: 426 Cov.: 31

Gnomad AFR AF: 0.144

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0162

Gnomad ASJ AF: 0.00289

Gnomad EAS AF: 0.000387

Gnomad SAS AF: 0.000415

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.0190

Gnomad NFE AF: 0.000897

Gnomad OTH AF: 0.0205

GnomAD4 exome AF: 0.00437 AC: 5983 AN: 1367762 Hom.: 398 Cov.: 32 AF XY: 0.00397 AC XY: 2673 AN XY: 672704

Gnomad4 AFR exome AF: 0.149

Gnomad4 AMR exome AF: 0.00964

Gnomad4 ASJ exome AF: 0.00325

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.000227

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.000481

Gnomad4 OTH exome AF: 0.00937

GnomAD4 genome AF: 0.0417 AC: 6345 AN: 152122 Hom.: 428 Cov.: 31 AF XY: 0.0403 AC XY: 2995 AN XY: 74364

Gnomad4 AFR AF: 0.144

Gnomad4 AMR AF: 0.0161

Gnomad4 ASJ AF: 0.00289

Gnomad4 EAS AF: 0.000387

Gnomad4 SAS AF: 0.000208

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000897

Gnomad4 OTH AF: 0.0208

Alfa AF: 0.00288 Hom.: 5

Bravo AF: 0.0478

Asia WGS AF: 0.0110 AC: 37 AN: 3478

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

May 25, 2021

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.80
Cadd	Benign	1.2
Dann	Benign	0.69
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1

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: rs71584833; hg19: chr12-6573910; COSMIC: COSV56947035; COSMIC: COSV56947035;