rs104895506

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM5PP5_Moderate

The NM_001127255.2(NLRP7):​c.2077C>T​(p.Arg693Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000201 in 1,613,926 control chromosomes in the GnomAD database, including 1 homozygotes. Variant has been reported in ClinVar as Pathogenic (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R693Q) has been classified as Pathogenic.

Frequency

Genomes: 𝑓 0.00023 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00020 ( 1 hom. )

Consequence

NLRP7
NM_001127255.2 missense

Scores

2
5
11

Clinical Significance

Pathogenic criteria provided, single submitter P:2O:1

Conservation

PhyloP100: -0.172

Publications

16 publications found
Variant links:
Genes affected
NLRP7 (HGNC:22947): (NLR family pyrin domain containing 7) This gene encodes a member of the NACHT, leucine rich repeat, and PYD containing (NLRP) protein family. It has an N-terminal pyrin domain, followed by a NACHT domain, a NACHT-associated domain (NAD), and a C-terminal leucine-rich repeat (LRR) region. NLRP proteins are implicated in the activation of proinflammatory caspases through multiprotein complexes called inflammasomes. This gene may act as a feedback regulator of caspase-1-dependent interleukin 1-beta secretion. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]
NCR1 (HGNC:6731): (natural cytotoxicity triggering receptor 1) Predicted to be involved in cellular defense response; regulation of natural killer cell mediated cytotoxicity; and signal transduction. Predicted to act upstream of or within defense response to virus and detection of virus. Predicted to be located in cell surface. Predicted to be part of SWI/SNF complex. Predicted to be active in plasma membrane. Biomarker of acquired immunodeficiency syndrome; anogenital venereal wart; hepatitis C; and lymphoproliferative syndrome. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM5
Other missense variant is known to change same aminoacid residue: Variant chr19-54938095-C-T is described in ClinVar as Pathogenic. ClinVar VariationId is 1591.Status of the report is criteria_provided_single_submitter, 1 stars.
PP5
Variant 19-54938096-G-A is Pathogenic according to our data. Variant chr19-54938096-G-A is described in ClinVar as Pathogenic. ClinVar VariationId is 1586.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NLRP7NM_001127255.2 linkc.2077C>T p.Arg693Trp missense_variant Exon 5 of 11 ENST00000592784.6 NP_001120727.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NLRP7ENST00000592784.6 linkc.2077C>T p.Arg693Trp missense_variant Exon 5 of 11 1 NM_001127255.2 ENSP00000468706.1

Frequencies

GnomAD3 genomes
AF:
0.000230
AC:
35
AN:
152096
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00254
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000118
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000274
AC:
69
AN:
251496
AF XY:
0.000302
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000578
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00226
Gnomad NFE exome
AF:
0.000149
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000198
AC:
290
AN:
1461830
Hom.:
1
Cov.:
33
AF XY:
0.000190
AC XY:
138
AN XY:
727228
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33476
American (AMR)
AF:
0.0000224
AC:
1
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86252
European-Finnish (FIN)
AF:
0.00225
AC:
120
AN:
53420
Middle Eastern (MID)
AF:
0.000173
AC:
1
AN:
5768
European-Non Finnish (NFE)
AF:
0.000138
AC:
154
AN:
1111960
Other (OTH)
AF:
0.000215
AC:
13
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.465
Heterozygous variant carriers
0
20
41
61
82
102
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000230
AC:
35
AN:
152096
Hom.:
0
Cov.:
32
AF XY:
0.000269
AC XY:
20
AN XY:
74292
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41414
American (AMR)
AF:
0.00
AC:
0
AN:
15232
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00254
AC:
27
AN:
10614
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000118
AC:
8
AN:
68028
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.488
Heterozygous variant carriers
0
2
4
7
9
11
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000154
Hom.:
0
Bravo
AF:
0.0000378
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.000264
AC:
32
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:2Other:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Hydatidiform mole, recurrent, 1 Pathogenic:2Other:1
Apr 28, 2017
Illumina Laboratory Services, Illumina
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The NLRP7 c.2077C>T (p.Arg693Trp) variant is one of the most common variants found in recurrent hydatidiform mole (RHM). The variant has been reported in at least six studies in which it is found in nine affected individuals, including three in a homozygous state, three in a compound heterozygous state, and three of unknown zygosity (Murdoch et al. 2006; Puechberty et al. 2009; Wang et al. 2009; Messaed et al. 2011; Dixon et al. 2012; Sebire et al. 2013). The p.Arg693Trp variant was absent from 1524 control chromosomes and is reported at a frequency of 0.00302 in the European (Finnish) population of the Exome Aggregation Consortium. Co-immunoprecipitation studies with the p.Arg693Trp variant protein showed reduced dimer formation compared to wild type (Singer et al. 2014). The p.Arg693Trp variant protein was also found to be more potent at activating inflammasome complexes compared to wild type protein (Khare et al. 2012). Based on the collective evidence, the p.Arg693Trp variant is classified as pathogenic for recurrent hydatidiform mole. This variant was observed by ICSL as part of a predisposition screen in an ostensibly healthy population. -

-
Unité médicale des maladies autoinflammatoires, CHRU Montpellier
Significance:not provided
Review Status:no classification provided
Collection Method:literature only

- -

Aug 01, 2009
OMIM
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.28
BayesDel_addAF
Benign
-0.068
T
BayesDel_noAF
Uncertain
-0.030
CADD
Benign
19
DANN
Uncertain
0.99
DEOGEN2
Benign
0.26
T;.;T;.;.
Eigen
Benign
-0.37
Eigen_PC
Benign
-0.63
FATHMM_MKL
Benign
0.39
N
M_CAP
Benign
0.011
T
MetaRNN
Uncertain
0.49
T;T;T;T;T
MetaSVM
Benign
-0.68
T
MutationAssessor
Uncertain
2.5
M;.;M;M;M
PhyloP100
-0.17
PrimateAI
Benign
0.44
T
PROVEAN
Pathogenic
-5.0
D;.;.;.;.
REVEL
Benign
0.28
Sift
Uncertain
0.0020
D;.;.;.;.
Sift4G
Pathogenic
0.0010
D;D;D;D;D
Polyphen
1.0
D;D;D;.;.
Vest4
0.71
MVP
0.64
MPC
0.89
ClinPred
0.76
D
GERP RS
-0.15
Varity_R
0.22
gMVP
0.46
Mutation Taster
=4/96
disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs104895506; hg19: chr19-55449464; COSMIC: COSV60172954; COSMIC: COSV60172954; API