18-10540345-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_003826.3(NAPG):​c.452G>A​(p.Arg151Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000062 in 1,613,684 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000057 ( 0 hom. )

Consequence

NAPG
NM_003826.3 missense

Scores

5
9
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.61
Variant links:
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.19857082).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
NAPGNM_003826.3 linkuse as main transcriptc.452G>A p.Arg151Gln missense_variant 8/12 ENST00000322897.11
NAPGXM_011525754.3 linkuse as main transcriptc.632G>A p.Arg211Gln missense_variant 9/13
NAPGXM_011525756.3 linkuse as main transcriptc.206G>A p.Arg69Gln missense_variant 6/10
NAPGXM_017026063.3 linkuse as main transcriptc.197G>A p.Arg66Gln missense_variant 4/8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
NAPGENST00000322897.11 linkuse as main transcriptc.452G>A p.Arg151Gln missense_variant 8/121 NM_003826.3 P1Q99747-1

Frequencies

GnomAD3 genomes
AF:
0.000118
AC:
18
AN:
152188
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000217
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000770
Gnomad SAS
AF:
0.000621
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000108
AC:
27
AN:
248874
Hom.:
0
AF XY:
0.000104
AC XY:
14
AN XY:
135036
show subpopulations
Gnomad AFR exome
AF:
0.000194
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000278
Gnomad SAS exome
AF:
0.000556
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000331
GnomAD4 exome
AF:
0.0000568
AC:
83
AN:
1461378
Hom.:
0
Cov.:
31
AF XY:
0.0000591
AC XY:
43
AN XY:
726976
show subpopulations
Gnomad4 AFR exome
AF:
0.000120
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000302
Gnomad4 SAS exome
AF:
0.000383
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000180
Gnomad4 OTH exome
AF:
0.000232
GnomAD4 genome
AF:
0.000112
AC:
17
AN:
152306
Hom.:
0
Cov.:
33
AF XY:
0.000121
AC XY:
9
AN XY:
74482
show subpopulations
Gnomad4 AFR
AF:
0.000217
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000772
Gnomad4 SAS
AF:
0.000414
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.0000617
Hom.:
0
Bravo
AF:
0.0000945
ESP6500AA
AF:
0.00109
AC:
4
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000911
AC:
11
Asia WGS
AF:
0.00318
AC:
11
AN:
3478

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 submitterclinical testingAmbry GeneticsSep 14, 2022The c.452G>A (p.R151Q) alteration is located in exon 8 (coding exon 8) of the NAPG gene. This alteration results from a G to A substitution at nucleotide position 452, causing the arginine (R) at amino acid position 151 to be replaced by a glutamine (Q). 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
Pathogenic
0.81
BayesDel_addAF
Benign
-0.030
T
BayesDel_noAF
Uncertain
0.080
CADD
Pathogenic
32
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.20
T
Eigen
Pathogenic
0.84
Eigen_PC
Pathogenic
0.84
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.95
D
M_CAP
Benign
0.046
D
MetaRNN
Benign
0.20
T
MetaSVM
Uncertain
0.014
D
MutationAssessor
Uncertain
2.8
M
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.55
T
PROVEAN
Uncertain
-3.0
D
REVEL
Uncertain
0.51
Sift
Uncertain
0.0040
D
Sift4G
Uncertain
0.026
D
Polyphen
1.0
D
Vest4
0.44
MVP
0.91
MPC
0.27
ClinPred
0.41
T
GERP RS
6.0
Varity_R
0.50
gMVP
0.58

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.

Other links and lift over

dbSNP: rs200300448; hg19: chr18-10540342; COSMIC: COSV59797015; COSMIC: COSV59797015; API