Genetic Variant NAPEPLD:p.Asp390Asn (chr7-103103443-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001122838.3(NAPEPLD):c.1168G>A(p.Asp390Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000717 in 1,561,360 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 0.00040 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000036 ( 0 hom. )

Consequence

NAPEPLD
NM_001122838.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.28

Variant links:

Genes affected

NAPEPLD (HGNC:21683): (N-acyl phosphatidylethanolamine phospholipase D) NAPEPLD is a phospholipase D type enzyme that catalyzes the release of N-acylethanolamine (NAE) from N-acyl-phosphatidylethanolamine (NAPE) in the second step of the biosynthesis of N-acylethanolamine (Okamoto et al., 2004 [PubMed 14634025]).[supplied by OMIM, Oct 2008]

NAPEPLD links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NAPEPLD	NM_001122838.3 link	c.1168G>A	p.Asp390Asn	missense_variant	Exon 5 of 5	ENST00000465647.6	NP_001116310.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NAPEPLD	ENST00000465647.6 link	c.1168G>A	p.Asp390Asn	missense_variant	Exon 5 of 5	1	NM_001122838.3	ENSP00000419188.1		Q6IQ20

Frequencies

GnomAD3 genomes

AF:

0.000401

AC:

AN:

152140

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00140

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000197

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000775

AC:

AN:

206462

Hom.:

AF XY:

0.0000532

AC XY:

AN XY:

112816

show subpopulations

Gnomad AFR exome

AF:

0.00101

Gnomad AMR exome

AF:

0.0000937

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000362

AC:

AN:

1409102

Hom.:

Cov.:

AF XY:

0.0000286

AC XY:

AN XY:

699926

show subpopulations

Gnomad4 AFR exome

AF:

0.00134

Gnomad4 AMR exome

AF:

0.0000952

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000183

Gnomad4 OTH exome

AF:

0.000103

GnomAD4 genome

AF:

0.000401

AC:

AN:

152258

Hom.:

Cov.:

AF XY:

0.000416

AC XY:

AN XY:

74450

show subpopulations

Gnomad4 AFR

AF:

0.00140

Gnomad4 AMR

AF:

0.000196

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000192

Hom.:

Bravo

AF:

0.000397

ESP6500AA

AF:

0.000681

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000906

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 28, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1168G>A (p.D390N) alteration is located in exon 5 (coding exon 4) of the NAPEPLD gene. This alteration results from a G to A substitution at nucleotide position 1168, causing the aspartic acid (D) at amino acid position 390 to be replaced by an asparagine (N). 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

0.070

BayesDel_addAF

Benign

-0.60

BayesDel_noAF

Benign

-0.65

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.11

T;T;T;T

Eigen

Benign

-0.34

Eigen_PC

Benign

-0.25

FATHMM_MKL

Benign

0.71

M_CAP

Benign

0.0044

MetaRNN

Benign

0.031

T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.1

M;M;M;M

PrimateAI

Benign

0.34

PROVEAN

Benign

-1.2

N;N;N;N

REVEL

Benign

0.029

Sift

Benign

0.30

T;T;T;T

Sift4G

Benign

0.40

T;T;T;T

Polyphen

0.0010

B;B;B;B

Vest4

0.11

MVP

0.25

MPC

0.16

ClinPred

0.015

GERP RS

4.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.13

gMVP

0.39

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.24

Details are displayed if max score is > 0.2

DS_DL_spliceai

0.24

Position offset: -19

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