rs200378519

Positions:

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 3P and 8B. PM1PP2BP4_StrongBS2

The NM_001243133.2(NLRP3):c.2120C>A(p.Pro707Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000186 in 1,609,752 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. P707P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

NLRP3
NM_001243133.2 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:1

Conservation

PhyloP100: -0.771

Variant links:

Genes affected

NLRP3 (HGNC:16400): (NLR family pyrin domain containing 3) This gene encodes a pyrin-like protein containing a pyrin domain, a nucleotide-binding site (NBS) domain, and a leucine-rich repeat (LRR) motif. This protein interacts with the apoptosis-associated speck-like protein PYCARD/ASC, which contains a caspase recruitment domain, and is a member of the NLRP3 inflammasome complex. This complex functions as an upstream activator of NF-kappaB signaling, and it plays a role in the regulation of inflammation, the immune response, and apoptosis. The SARS-CoV 3a protein, a transmembrane pore-forming viroporin, has been shown to activate the NLRP3 inflammasome via the formation of ion channels in macrophages. Mutations in this gene are associated with familial cold autoinflammatory syndrome (FCAS), Muckle-Wells syndrome (MWS), chronic infantile neurological cutaneous and articular (CINCA) syndrome, neonatal-onset multisystem inflammatory disease (NOMID), keratoendotheliitis fugax hereditarian, and deafness, autosomal dominant 34, with or without inflammation. Multiple alternatively spliced transcript variants encoding distinct isoforms have been identified for this gene. Alternative 5' UTR structures are suggested by available data; however, insufficient evidence is available to determine if all of the represented 5' UTR splice patterns are biologically valid. [provided by RefSeq, Aug 2020]

NLRP3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PM1

In a mutagenesis_site Decreased ability to activate the NLRP3 inflammasome. (size 0) in uniprot entity NLRP3_HUMAN

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), NLRP3. . Gene score misZ: 2.1417 (greater than the threshold 3.09). Trascript score misZ: 3.5037 (greater than threshold 3.09). The gene has 55 curated pathogenic missense variants (we use a threshold of 10). The gene has 10 curated benign missense variants. GenCC has associacion of the gene with familial cold autoinflammatory syndrome, keratitis fugax hereditaria, cryopyrin-associated periodic syndrome, Muckle-Wells syndrome, familial cold autoinflammatory syndrome 1, CINCA syndrome.

BP4

Computational evidence support a benign effect (MetaRNN=0.060272843).

BS2

High AC in GnomAd4 at 14 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
NLRP3	NM_001243133.2 link	c.2120C>A	p.Pro707Gln	missense_variant	4/10	ENST00000336119.8	NP_001230062.1	Q96P20A0A7I2R3P8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
NLRP3	ENST00000336119.8 link	c.2120C>A	p.Pro707Gln	missense_variant	4/10	1	NM_001243133.2	ENSP00000337383.4		A0A7I2R3P8

Frequencies

GnomAD3 genomes

AF:

0.0000854

AC:

AN:

152176

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000217

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

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:

0.0000202

AC:

AN:

247884

Hom.:

AF XY:

0.0000223

AC XY:

AN XY:

134330

show subpopulations

Gnomad AFR exome

AF:

0.000185

Gnomad AMR exome

AF:

0.0000289

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:

0.00000880

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000110

AC:

AN:

1457458

Hom.:

Cov.:

AF XY:

0.0000110

AC XY:

AN XY:

725270

show subpopulations

Gnomad4 AFR exome

AF:

0.000269

Gnomad4 AMR exome

AF:

0.0000447

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:

8.99e-7

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.0000919

AC:

AN:

152294

Hom.:

Cov.:

AF XY:

0.0000671

AC XY:

AN XY:

74462

show subpopulations

Gnomad4 AFR

AF:

0.000241

Gnomad4 AMR

AF:

0.000261

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:

0.0000844

Hom.:

Bravo

AF:

0.000121

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:4Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 22, 2020

The c.2126C>A (p.P709Q) alteration is located in exon 3 (coding exon 3) of the NLRP3 gene. This alteration results from a C to A substitution at nucleotide position 2126, causing the proline (P) at amino acid position 709 to be replaced by a glutamine (Q). Based on data from the Genome Aggregation Database (gnomAD) database, the NLRP3 c.2126C>A alteration was observed in <0.01% (5/247884) of total alleles studied, with a frequency of 0.02% (3/16238) in the African subpopulation. This amino acid position is not well conserved in available vertebrate species. The p.P709Q alteration is predicted to be tolerated by in silico analysis. Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Familial amyloid nephropathy with urticaria AND deafness;C0409818:Chronic infantile neurological, cutaneous and articular syndrome;C1835697:Keratitis fugax hereditaria;C4521680:Hearing loss, autosomal dominant 34, with or without inflammation;C4551895:Familial cold autoinflammatory syndrome 1

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Oct 31, 2018

- -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Nov 29, 2023

In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge; Also known as p.(P707Q) -

Autoinflammatory syndrome

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Genome Diagnostics Laboratory, The Hospital for Sick Children

Nov 01, 2019

- -

Cryopyrin associated periodic syndrome

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Oct 18, 2023

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.088

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.32

CADD

Benign

0.81

DANN

Benign

0.51

DEOGEN2

Benign

0.13

.;T;T;.;.;.;.;.

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.074

LIST_S2

Benign

0.36

T;.;T;T;.;T;T;T

M_CAP

Uncertain

0.15

MetaRNN

Benign

0.060

T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.82

PrimateAI

Benign

0.25

PROVEAN

Benign

-0.16

N;N;N;N;N;.;.;N

REVEL

Benign

0.23

Sift

Benign

0.17

T;T;T;T;T;.;.;T

Sift4G

Benign

0.28

T;T;T;T;T;.;.;T

Polyphen

0.0

B;B;B;B;B;.;.;B

Vest4

0.19

MVP

0.84

MPC

0.42

ClinPred

0.20

GERP RS

-0.62

Varity_R

0.082

gMVP

0.32

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