1-153658769-T-A

Position:

chr1-153658769-T-A

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_012437.6(SNAPIN):c.26T>A(p.Val9Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000324 in 1,575,142 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000032 ( 0 hom. )

Consequence

SNAPIN
NM_012437.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.38

Variant links:

Genes affected

SNAPIN (HGNC:17145): (SNAP associated protein) The protein encoded by this gene is a coiled-coil-forming protein that associates with the SNARE (soluble N-ethylmaleimide-sensitive fusion protein attachment protein receptor) complex of proteins and the BLOC-1 (biogenesis of lysosome-related organelles) complex. Biochemical studies have identified additional binding partners. As part of the SNARE complex, it is required for vesicle docking and fusion and regulates neurotransmitter release. The BLOC-1 complex is required for the biogenesis of specialized organelles such as melanosomes and platelet dense granules. Mutations in gene products that form the BLOC-1 complex have been identified in mouse strains that are models of Hermansky-Pudlak syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jun 2012]

SNAPIN links:

SNAPIN (HGNC:):

SNAPIN links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.16351199).

BS2

High AC in GnomAd4 at 5 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SNAPIN	NM_012437.6 linkuse as main transcript	c.26T>A	p.Val9Glu	missense_variant	1/4	ENST00000368685.6	NP_036569.1	O95295
SNAPIN	NR_052019.1 linkuse as main transcript	n.116T>A		non_coding_transcript_exon_variant	1/3
SNAPIN	NR_052020.1 linkuse as main transcript	n.116T>A		non_coding_transcript_exon_variant	1/3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
SNAPIN	ENST00000368685.6 linkuse as main transcript	c.26T>A	p.Val9Glu	missense_variant	1/4	1	NM_012437.6	ENSP00000357674.5	O95295
SNAPIN	ENST00000462880.1 linkuse as main transcript	n.56T>A		non_coding_transcript_exon_variant	1/3	2
SNAPIN	ENST00000474959.5 linkuse as main transcript	n.58T>A		non_coding_transcript_exon_variant	1/3	2
SNAPIN	ENST00000478558.1 linkuse as main transcript	n.43T>A		non_coding_transcript_exon_variant	1/2	2

Frequencies

GnomAD3 genomes

AF:

0.0000328

AC:

AN:

152230

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000400

AC:

AN:

200212

Hom.:

AF XY:

0.0000178

AC XY:

AN XY:

112378

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000871

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000323

AC:

AN:

1422912

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

707430

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.0000195

Gnomad4 NFE exome

AF:

0.0000382

Gnomad4 OTH exome

AF:

0.0000513

GnomAD4 genome

AF:

0.0000328

AC:

AN:

152230

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74376

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000735

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000364

Hom.:

Bravo

AF:

0.0000227

ExAC

AF:

0.0000334

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 01, 2023

The c.26T>A (p.V9E) alteration is located in exon 1 (coding exon 1) of the SNAPIN gene. This alteration results from a T to A substitution at nucleotide position 26, causing the valine (V) at amino acid position 9 to be replaced by a glutamic acid (E). 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

Benign

0.19

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.33

CADD

Benign

DANN

Benign

0.95

DEOGEN2

Benign

0.088

Eigen

Benign

-0.50

Eigen_PC

Benign

-0.28

FATHMM_MKL

Uncertain

0.77

LIST_S2

Benign

0.64

M_CAP

Benign

0.032

MetaRNN

Benign

0.16

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.0

PrimateAI

Pathogenic

0.80

PROVEAN

Benign

-0.14

REVEL

Benign

0.17

Sift

Benign

0.073

Sift4G

Benign

0.061

Polyphen

0.038

Vest4

0.38

MutPred

0.32

Gain of solvent accessibility (P = 0.005);

MVP

0.56

MPC

0.89

ClinPred

0.23

GERP RS

5.6

Varity_R

0.25

gMVP

0.54

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over