1-247424850-C-T

Position:

chr1-247424850-C-T

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_001243133.2(NLRP3):c.1401C>T(p.Leu467Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000388 in 1,608,102 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00027 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00040 ( 0 hom. )

Consequence

NLRP3
NM_001243133.2 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: 0.574

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 Benign. Variant got -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.6).

BP6

Variant 1-247424850-C-T is Benign according to our data. Variant chr1-247424850-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 138531.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-247424850-C-T is described in Lovd as [Benign].

BP7

Synonymous conserved (PhyloP=0.574 with no splicing effect.

BS1

Variant frequency is greater than expected in population nfe. gnomad4_exome allele frequency = 0.0004 (583/1455900) while in subpopulation NFE AF= 0.000485 (539/1111968). AF 95% confidence interval is 0.000451. There are 0 homozygotes in gnomad4_exome. There are 292 alleles in male gnomad4_exome subpopulation. Median coverage is 38. This position pass quality control queck.

BS2

High AC in GnomAd4 at 41 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
NLRP3	NM_001243133.2 linkuse as main transcript	c.1401C>T	p.Leu467Leu	synonymous_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 linkuse as main transcript	c.1401C>T	p.Leu467Leu	synonymous_variant	4/10	1	NM_001243133.2	ENSP00000337383.4		A0A7I2R3P8

Frequencies

GnomAD3 genomes

AF:

0.000269

AC:

AN:

152202

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000588

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000188

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000426

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000333

AC:

AN:

246114

Hom.:

AF XY:

0.000314

AC XY:

AN XY:

133626

show subpopulations

Gnomad AFR exome

AF:

0.0000622

Gnomad AMR exome

AF:

0.000232

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000981

Gnomad FIN exome

AF:

0.000172

Gnomad NFE exome

AF:

0.000557

Gnomad OTH exome

AF:

0.000657

GnomAD4 exome

AF:

0.000400

AC:

583

AN:

1455900

Hom.:

Cov.:

AF XY:

0.000403

AC XY:

292

AN XY:

724554

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.000201

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000812

Gnomad4 FIN exome

AF:

0.000168

Gnomad4 NFE exome

AF:

0.000485

Gnomad4 OTH exome

AF:

0.000298

GnomAD4 genome

AF:

0.000269

AC:

AN:

152202

Hom.:

Cov.:

AF XY:

0.000229

AC XY:

AN XY:

74362

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000588

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000188

Gnomad4 NFE

AF:

0.000426

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.000265

Hom.:

Bravo

AF:

0.000249

EpiCase

AF:

0.000600

EpiControl

AF:

0.000652

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:7

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Likely benign, criteria provided, single submitter	clinical testing	ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories	Jun 30, 2017	The NLRP3 c.1407C>T;p.Leu469Leu variant is not described in the medical literature or in gene-specific databases. The variant is listed in the ClinVar database (Variation ID: 138531) and the dbSNP variant database (rs141637807) with an allele frequency of 0.0231 percent (3/13003 alleles) in the Exome Variant Server and 0.03269 percent (89/27224 alleles) in the Genome Aggregation Database. The nucleotide at this position is weakly conserved across species and computational algorithms (SpliceSiteFinder-like, MaxEntScan, NNSplice, GeneSplicer, Human Splicing Finder) predict this variant does not change splicing. Considering available information, this variant is classified as likely benign. -
Likely benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	May 01, 2023	NLRP3: BP4, BP7 -

not specified

Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

Feb 16, 2014

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Cryopyrin associated periodic syndrome

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Dec 11, 2023

- -

NLRP3-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Feb 10, 2020

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

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

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Dec 29, 2021

- -

Autoinflammatory syndrome

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Genome Diagnostics Laboratory, The Hospital for Sick Children

Feb 01, 2020

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.60

CADD

Benign

8.0

DANN

Benign

0.49

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