chr9-35808552-C-T
Variant names:
Variant summary
Our verdict is Likely pathogenic. The variant received 9 ACMG points: 9P and 0B. PM1PM2PP2PP3_Strong
The NM_003995.4(NPR2):c.2756C>T(p.Pro919Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,614,034 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )
Consequence
NPR2
NM_003995.4 missense
NM_003995.4 missense
Scores
14
4
1
Clinical Significance
Conservation
PhyloP100: 7.91
Publications
1 publications found
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]
SPAG8 (HGNC:14105): (sperm associated antigen 8) The correlation of anti-sperm antibodies with cases of unexplained infertility implicates a role for these antibodies in blocking fertilization. Improved diagnosis and treatment of immunologic infertility, as well as identification of proteins for targeted contraception, are dependent on the identification and characterization of relevant sperm antigens. The protein encoded by this gene is recognized by sperm agglutinating antibodies from an infertile woman. This protein is localized in germ cells of the testis at all stages of spermatogenesis and is localized to the acrosomal region of mature spermatozoa. This protein interacts with ACT (activator of CREM in testis) and may play a role in CREM (cAMP response element modulator)-ACT-mediated gene transcription during spermatogenesis. This protein may also play a role in spermatogenesis by regulating microtubule formation and cell division. Alternatively spliced variants that encode different protein isoforms have been described but the full-length sequences of only two have been determined. [provided by RefSeq, Jul 2012]
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ACMG classification
Classification was made for transcript
Our verdict: Likely_pathogenic. The variant received 9 ACMG points.
PM1
In a domain Guanylate cyclase (size 130) in uniprot entity ANPRB_HUMAN there are 8 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 in the NPR2 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 31 curated pathogenic missense variants (we use a threshold of 10). The gene has 9 curated benign missense variants. Gene score misZ: 2.9586 (below the threshold of 3.09). Trascript score misZ: 4.5861 (above the threshold of 3.09). GenCC associations: The gene is linked to tall stature-scoliosis-macrodactyly of the great toes syndrome, acromesomelic dysplasia 1, Maroteaux type, short stature with nonspecific skeletal abnormalities 1.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.983
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes 0.00000657 AC: 1AN: 152232Hom.: 0 Cov.: 32 show subpopulations
GnomAD3 genomes
AF:
AC:
1
AN:
152232
Hom.:
Cov.:
32
Gnomad AFR
AF:
Gnomad AMI
AF:
Gnomad AMR
AF:
Gnomad ASJ
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Gnomad EAS
AF:
Gnomad SAS
AF:
Gnomad FIN
AF:
Gnomad MID
AF:
Gnomad NFE
AF:
Gnomad OTH
AF:
GnomAD2 exomes AF: 0.00000400 AC: 1AN: 250118 AF XY: 0.00000739 show subpopulations
GnomAD2 exomes
AF:
AC:
1
AN:
250118
AF XY:
Gnomad AFR exome
AF:
Gnomad AMR exome
AF:
Gnomad ASJ exome
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Gnomad EAS exome
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Gnomad FIN exome
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Gnomad NFE exome
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Gnomad OTH exome
AF:
GnomAD4 exome AF: 6.84e-7 AC: 1AN: 1461802Hom.: 0 Cov.: 33 AF XY: 0.00000138 AC XY: 1AN XY: 727208 show subpopulations
GnomAD4 exome
AF:
AC:
1
AN:
1461802
Hom.:
Cov.:
33
AF XY:
AC XY:
1
AN XY:
727208
show subpopulations
African (AFR)
AF:
AC:
0
AN:
33480
American (AMR)
AF:
AC:
0
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
AC:
0
AN:
26136
East Asian (EAS)
AF:
AC:
0
AN:
39700
South Asian (SAS)
AF:
AC:
0
AN:
86256
European-Finnish (FIN)
AF:
AC:
0
AN:
53348
Middle Eastern (MID)
AF:
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
AC:
1
AN:
1111998
Other (OTH)
AF:
AC:
0
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome 0.00000657 AC: 1AN: 152232Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1AN XY: 74362 show subpopulations
GnomAD4 genome
AF:
AC:
1
AN:
152232
Hom.:
Cov.:
32
AF XY:
AC XY:
1
AN XY:
74362
show subpopulations
African (AFR)
AF:
AC:
0
AN:
41448
American (AMR)
AF:
AC:
0
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
AC:
0
AN:
3472
East Asian (EAS)
AF:
AC:
0
AN:
5202
South Asian (SAS)
AF:
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
AC:
1
AN:
68054
Other (OTH)
AF:
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
Hom.:
Bravo
AF:
ExAC
AF:
AC:
1
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Acromesomelic dysplasia 1, Maroteaux type;C4014690:Tall stature-scoliosis-macrodactyly of the great toes syndrome Uncertain:1
Jan 19, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing
This sequence change replaces proline, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 919 of the NPR2 protein (p.Pro919Leu). This variant is present in population databases (rs748606293, gnomAD 0.0009%). This variant has not been reported in the literature in individuals affected with NPR2-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive. 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. -
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
DANN
Uncertain
DEOGEN2
Pathogenic
D
Eigen
Pathogenic
Eigen_PC
Pathogenic
FATHMM_MKL
Pathogenic
D
LIST_S2
Pathogenic
D
M_CAP
Pathogenic
D
MetaRNN
Pathogenic
D
MetaSVM
Uncertain
D
MutationAssessor
Pathogenic
H
PhyloP100
PrimateAI
Pathogenic
D
PROVEAN
Pathogenic
D
REVEL
Pathogenic
Sift
Uncertain
D
Sift4G
Uncertain
D
Polyphen
D
Vest4
MutPred
Loss of disorder (P = 0.0213);
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
DS_AG_spliceai
Position offset: 3
Find out detailed SpliceAI scores and Pangolin per-transcript scores at
Publications
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