rs587777595

chr9-35807333-G-A

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM1 PM2 PP2 PP3_Moderate PP5

The NM_003995.4(NPR2):c.2647G>A(p.Val883Met) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V883G) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: NPR2 NM_003995.4 missense
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 7.97

Genes affected

NPR2 (HGNC:7944): (natriuretic peptide receptor 2) This gene encodes natriuretic peptide receptor B, one of two integral membrane receptors for natriuretic peptides. Both NPR1 and NPR2 contain five functional domains: an extracellular ligand-binding domain, a single membrane-spanning region, and intracellularly a protein kinase homology domain, a helical hinge region involved in oligomerization, and a carboxyl-terminal guanylyl cyclase catalytic domain. The protein is the primary receptor for C-type natriuretic peptide (CNP), which upon ligand binding exhibits greatly increased guanylyl cyclase activity. Mutations in this gene are the cause of acromesomelic dysplasia Maroteaux type. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

• PM1: In a domain Guanylate cyclase (size 130) in uniprot entity ANPRB_HUMAN there are 17 pathogenic changes around while only 0 benign (100%) in NM_003995.4
• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant where missense usually causes diseases, NPR2
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.907
• PP5: Variant 9-35807333-G-A is Pathogenic according to our data. Variant chr9-35807333-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 143053.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr9-35807333-G-A is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NPR2	NM_003995.4	c.2647G>A	p.Val883Met	missense_variant	18/22	ENST00000342694.7
NPR2	NM_001378923.1	c.2656G>A	p.Val886Met	missense_variant	18/22
NPR2	XM_047423431.1	c.1252G>A	p.Val418Met	missense_variant	13/17
NPR2	XM_024447561.2	c.1243G>A	p.Val415Met	missense_variant	13/17

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NPR2	ENST00000342694.7	c.2647G>A	p.Val883Met	missense_variant	18/22	1	NM_003995.4	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Tall stature-scoliosis-macrodactyly of the great toes syndrome Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Oct 01, 2013

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.99
BayesDel_addAF	Pathogenic	0.44	D
BayesDel_noAF	Pathogenic	0.40
Cadd	Pathogenic	29
Dann	Uncertain	1.0
DEOGEN2	Pathogenic	0.82	D;T
Eigen	Pathogenic	0.93
Eigen_PC	Pathogenic	0.93
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.98	D;D
M_CAP	Uncertain	0.21	D
MetaRNN	Pathogenic	0.91	D;D
MetaSVM	Uncertain	0.53	D
MutationAssessor	Uncertain	2.5	M;.
MutationTaster	Benign	1.0	D
PrimateAI	Pathogenic	0.86	D
PROVEAN	Uncertain	-2.8	D;D
REVEL	Pathogenic	0.69
Sift	Uncertain	0.0010	D;D
Sift4G	Pathogenic	0.0010	D;D
Polyphen		1.0	D;.
Vest4		0.89
MutPred		0.78		Loss of helix (P = 0.079);.;
MVP		0.96
MPC		1.7
ClinPred		1.0	D
GERP RS		6.2
Varity_R		0.75
gMVP		0.92

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

Other links and lift over

dbSNP: rs587777595; hg19: chr9-35807330;