18-10546357-GAAA-G

Position:

• chr18-10546357-GAAA-G

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PM4_Supporting

The NM_003826.3(NAPG):​c.543_545del​(p.Lys181del) variant causes a inframe deletion change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: NAPG NM_003826.3 inframe_deletion
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.55

Genes affected

NAPG (HGNC:7642): (NSF attachment protein gamma) This gene encodes soluble NSF attachment protein gamma. The soluble NSF attachment proteins (SNAPs) enable N-ethyl-maleimide-sensitive fusion protein (NSF) to bind to target membranes. NSF and SNAPs appear to be general components of the intracellular membrane fusion apparatus, and their action at specific sites of fusion must be controlled by SNAP receptors particular to the membranes being fused. The product of this gene mediates platelet exocytosis and controls the membrane fusion events of this process.[provided by RefSeq, Dec 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PM4: Nonframeshift variant in NON repetitive region in NM_003826.3. Strenght limited to Supporting due to length of the change: 1aa.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NAPG	NM_003826.3	c.543_545del	p.Lys181del	inframe_deletion	9/12	ENST00000322897.11
NAPG	XM_011525754.3	c.723_725del	p.Lys241del	inframe_deletion	10/13
NAPG	XM_011525756.3	c.297_299del	p.Lys99del	inframe_deletion	7/10
NAPG	XM_017026063.3	c.288_290del	p.Lys96del	inframe_deletion	5/8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NAPG	ENST00000322897.11	c.543_545del	p.Lys181del	inframe_deletion	9/12	1	NM_003826.3	P1
NAPG	ENST00000583367.1	n.923_925del		non_coding_transcript_exon_variant	4/7	2
NAPG	ENST00000580224.5	c.*406_*408del		3_prime_UTR_variant, NMD_transcript_variant	8/11	2
NAPG	ENST00000580483.5	c.*284_*286del		3_prime_UTR_variant, NMD_transcript_variant	5/8	3

Frequencies

GnomAD3 genomes Cov.: 32

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

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

CeGaT Center for Human Genetics Tuebingen

Mar 01, 2023

NAPG: PM2, PM4:Supporting -

Computational scores

Source: dbNSFP v4.3

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr18-10546354;