Variant 2-231925607-C-T details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_024409.4(NPPC):c.199G>A(p.Asp67Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,458,644 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 34)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

NPPC
NM_024409.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.57

Variant links:

Genes affected

NPPC (HGNC:7941): (natriuretic peptide C) This gene encodes a preproprotein that is proteolytically processed to generate multiple protein products. These products include the cardiac natriuretic peptides CNP-53, CNP-29 and CNP-22, which belong to the natriuretic family of peptides. The encoded peptides exhibit vasorelaxation activity in laboratory animals and elevated levels of CNP-22 have been observed in the plasma of chronic heart failure patients. [provided by RefSeq, Oct 2015]

NPPC links:

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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=0.16094667).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
NPPC	NM_024409.4 linkuse as main transcript	c.199G>A	p.Asp67Asn	missense_variant	2/3	ENST00000409852.2	NP_077720.1
NPPC	XM_011511245.4 linkuse as main transcript	c.199G>A	p.Asp67Asn	missense_variant	2/3		XP_011509547.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
NPPC	ENST00000409852.2 linkuse as main transcript	c.199G>A	p.Asp67Asn	missense_variant	2/3	3	NM_024409.4	ENSP00000387159	P1
NPPC	ENST00000295440.2 linkuse as main transcript	c.199G>A	p.Asp67Asn	missense_variant	2/2	1		ENSP00000295440	P1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000837

AC:

AN:

238962

Hom.:

AF XY:

0.0000153

AC XY:

AN XY:

130834

show subpopulations

Gnomad AFR exome

AF:

0.0000685

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:

0.00000941

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1458644

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

725570

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

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:

0.00

Gnomad4 NFE exome

AF:

0.00000270

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Apr 30, 2023

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. This variant has not been reported in the literature in individuals affected with NPPC-related conditions. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This sequence change replaces aspartic acid, which is acidic and polar, with asparagine, which is neutral and polar, at codon 67 of the NPPC protein (p.Asp67Asn). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.17

BayesDel_addAF

Benign

-0.29

BayesDel_noAF

Benign

-0.65

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.27

T;T

Eigen

Benign

-0.39

Eigen_PC

Benign

-0.32

FATHMM_MKL

Benign

0.075

LIST_S2

Benign

0.80

.;T

M_CAP

Benign

0.034

MetaRNN

Benign

0.16

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.5

L;L

MutationTaster

Benign

0.85

N;N

PrimateAI

Uncertain

0.78

PROVEAN

Benign

-0.65

N;N

REVEL

Benign

0.052

Sift

Benign

0.69

T;T

Sift4G

Benign

0.45

T;T

Polyphen

0.65

P;P

Vest4

0.14

MutPred

0.31

Gain of MoRF binding (P = 0.0712);Gain of MoRF binding (P = 0.0712);

MVP

0.50

MPC

0.92

ClinPred

0.86

GERP RS

3.1

Varity_R

0.12

gMVP

0.37

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