Genetic Variant NLRP1:p.Arg726Gly (chr17-5558520-G-C) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_033004.4(NLRP1):c.2176C>G(p.Arg726Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,856 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R726W) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

NLRP1
NM_033004.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.07

Publications

0 publications found

Variant links:

Genes affected

NLRP1 (HGNC:14374): (NLR family pyrin domain containing 1) This gene encodes a member of the Ced-4 family of apoptosis proteins. Ced-family members contain a caspase recruitment domain (CARD) and are known to be key mediators of programmed cell death. The encoded protein contains a distinct N-terminal pyrin-like motif, which is possibly involved in protein-protein interactions. This protein interacts strongly with caspase 2 and weakly with caspase 9. Overexpression of this gene was demonstrated to induce apoptosis in cells. Multiple alternatively spliced transcript variants encoding distinct isoforms have been found for this gene, but the biological validity of some variants has not been determined. [provided by RefSeq, Jul 2008]

NLRP1 Gene-Disease associations (from GenCC):

corneal intraepithelial dyskeratosis-palmoplantar hyperkeratosis-laryngeal dyskeratosis syndrome
Inheritance: AD, SD Classification: STRONG, MODERATE, SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, G2P, Ambry Genetics
autoinflammation with arthritis and dyskeratosis
Inheritance: AR, SD Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics

NLRP1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.20522717).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NLRP1	NM_033004.4 link	c.2176C>G	p.Arg726Gly	missense_variant	Exon 4 of 17	ENST00000572272.6	NP_127497.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NLRP1	ENST00000572272.6 link	c.2176C>G	p.Arg726Gly	missense_variant	Exon 4 of 17	1	NM_033004.4	ENSP00000460475.1		Q9C000-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1461856

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727222

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

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:

0.00000360

AC:

AN:

1111982

Other (OTH)

AF:

0.00

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.049

BayesDel_noAF

Benign

-0.31

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.12

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

Eigen

Benign

-0.42

Eigen_PC

Benign

-0.33

FATHMM_MKL

Benign

0.73

LIST_S2

Benign

0.77

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

M_CAP

Benign

0.0080

MetaRNN

Benign

0.21

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

MetaSVM

Benign

-0.98

PhyloP100

3.1

PrimateAI

Benign

0.18

PROVEAN

Uncertain

-3.0

D;.;.;D;.;D;.;.;.;D

REVEL

Benign

0.16

Sift

Uncertain

0.0010

D;.;.;D;.;D;.;.;.;D

Sift4G

Uncertain

0.0030

D;D;.;D;D;D;D;D;D;D

Polyphen

0.22, 0.040, 0.0060

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

Vest4

0.14

MutPred

0.43

Loss of stability (P = 0.077);Loss of stability (P = 0.077);Loss of stability (P = 0.077);Loss of stability (P = 0.077);Loss of stability (P = 0.077);Loss of stability (P = 0.077);Loss of stability (P = 0.077);Loss of stability (P = 0.077);Loss of stability (P = 0.077);Loss of stability (P = 0.077);

MVP

0.66

MPC

0.29

ClinPred

0.51

GERP RS

4.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Varity_R

0.27

gMVP

0.097

Mutation Taster

=35/65

disease causing

(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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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over