Genetic Variant NLRP13:p.Cys916Arg (chr19-55902078-A-G) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_176810.2(NLRP13):c.2746T>C(p.Cys916Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,852 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

NLRP13
NM_176810.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.689

Publications

0 publications found

Variant links:

Genes affected

NLRP13 (HGNC:22937): (NLR family pyrin domain containing 13) 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. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Mar 2016]

NLRP13 links:

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ACMG classification

Classification was made for transcript

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

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.862

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NLRP13	NM_176810.2 link	c.2746T>C	p.Cys916Arg	missense_variant	Exon 9 of 11	ENST00000342929.4	NP_789780.2
NLRP13	NM_001321057.1 link	c.2746T>C	p.Cys916Arg	missense_variant	Exon 9 of 12		NP_001307986.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NLRP13	ENST00000342929.4 link	c.2746T>C	p.Cys916Arg	missense_variant	Exon 9 of 11	1	NM_176810.2	ENSP00000343891.3		Q86W25
NLRP13	ENST00000588751.5 link	c.2746T>C	p.Cys916Arg	missense_variant	Exon 9 of 12	5		ENSP00000467899.1		A0A0C4DGQ4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000796

AC:

AN:

251248

AF XY:

0.00000736

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000109

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1461852

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727230

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.0000756

AC:

AN:

39694

South Asian (SAS)

AF:

0.00

AC:

AN:

86254

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111984

Other (OTH)

AF:

0.00

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

ExAC

AF:

0.0000165

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 17, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.2746T>C (p.C916R) alteration is located in exon 9 (coding exon 9) of the NLRP13 gene. This alteration results from a T to C substitution at nucleotide position 2746, causing the cysteine (C) at amino acid position 916 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.57

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.29

CADD

Benign

(source)

DANN

Benign

0.86

DEOGEN2

Benign

0.079

.;T

Eigen

Benign

-0.52

Eigen_PC

Benign

-0.77

FATHMM_MKL

Benign

0.074

LIST_S2

Benign

0.59

T;T

M_CAP

Benign

0.021

MetaRNN

Pathogenic

0.86

D;D

MetaSVM

Benign

-0.65

MutationAssessor

Pathogenic

3.1

.;M

PhyloP100

0.69

PrimateAI

Benign

0.33

PROVEAN

Pathogenic

-8.8

.;D

REVEL

Benign

0.21

Sift

Uncertain

0.0040

.;D

Sift4G

Uncertain

0.0080

D;D

Polyphen

0.54

.;P

Vest4

0.41

MutPred

0.83

Gain of disorder (P = 0.0178);Gain of disorder (P = 0.0178);

MVP

0.61

MPC

0.082

ClinPred

0.40

GERP RS

-2.1

Varity_R

0.71

gMVP

0.80

Mutation Taster

=82/18

polymorphism

(source)

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

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19-55902078-A-G

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over