rs776245016

Variant names:

• chr17-5558520-G-A
• rs776245016
• NM_033004.4:c.2176C>T

Your query was ambiguous. Multiple possible variants found:

• chr17-5558520-G-A
• chr17-5558520-G-C
• chr17-5558520-G-T

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP4

The NM_033004.4(NLRP1):​c.2176C>T​(p.Arg726Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000105 in 1,613,894 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R726Q) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000011 (0 hom.)
• Consequence: NLRP1 NM_033004.4 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts P:1 U:2
• Conservation: PhyloP100: 3.07
• Publications: 16 publications found

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):

• autoinflammation with arthritis and dyskeratosis

  Inheritance: AR, SD Classification: STRONG, LIMITED Submitted by: G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae)
• corneal intraepithelial dyskeratosis-palmoplantar hyperkeratosis-laryngeal dyskeratosis syndrome

  Inheritance: SD, AD Classification: STRONG, MODERATE, SUPPORTIVE, LIMITED Submitted by: Ambry Genetics, G2P, Orphanet, Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Likely_benign. The variant received -1 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.33378708).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_033004.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NLRP1	NM_033004.4	MANE Select	c.2176C>T	p.Arg726Trp	missense	Exon 4 of 17	NP_127497.1	Q9C000-1
	NLRP1	NM_033006.4		c.2176C>T	p.Arg726Trp	missense	Exon 4 of 16	NP_127499.1	Q9C000-4
	NLRP1	NM_014922.5		c.2176C>T	p.Arg726Trp	missense	Exon 4 of 16	NP_055737.1	Q9C000-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NLRP1	ENST00000572272.6	TSL:1 MANE Select	c.2176C>T	p.Arg726Trp	missense	Exon 4 of 17	ENSP00000460475.1	Q9C000-1
	NLRP1	ENST00000354411.8	TSL:1	c.2176C>T	p.Arg726Trp	missense	Exon 4 of 16	ENSP00000346390.3	Q9C000-4
	NLRP1	ENST00000269280.9	TSL:1	c.2176C>T	p.Arg726Trp	missense	Exon 5 of 17	ENSP00000269280.4	Q9C000-2

Frequencies

GnomAD3 genomes AF: 0.00000658 AC: 1 AN: 152038 Hom.: 0 Cov.: 32

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: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000147

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000199 AC: 5 AN: 251412 AF XY: 0.0000221

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000440

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000109 AC: 16 AN: 1461856 Hom.: 0 Cov.: 33 AF XY: 0.0000110 AC XY: 8 AN XY: 727222

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 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: 86254

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53418

Middle Eastern (MID) AF: 0.000173 AC: 1 AN: 5768

European-Non Finnish (NFE) AF: 0.0000117 AC: 13 AN: 1111982

Other (OTH) AF: 0.0000331 AC: 2 AN: 60396

GnomAD4 genome AF: 0.00000658 AC: 1 AN: 152038 Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1 AN XY: 74248

African (AFR) AF: 0.00 AC: 0 AN: 41386

American (AMR) AF: 0.00 AC: 0 AN: 15272

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.00 AC: 0 AN: 5158

South Asian (SAS) AF: 0.00 AC: 0 AN: 4814

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10608

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 68024

Other (OTH) AF: 0.00 AC: 0 AN: 2082

Alfa AF: 0.0000712 Hom.: 0

Bravo AF: 0.0000113

ExAC AF: 0.0000412 AC: 5

EpiCase AF: 0.00

EpiControl AF: 0.0000593

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
1	1	-	Autoinflammation with arthritis and dyskeratosis (2)
-	1	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.18
BayesDel_addAF	Benign	-0.12	T
BayesDel_noAF	Benign	-0.29
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.22	T
Eigen	Benign	-0.091
Eigen_PC	Benign	-0.095
FATHMM_MKL	Benign	0.71	D
LIST_S2	Uncertain	0.88	D
M_CAP	Benign	0.015	T
MetaRNN	Benign	0.33	T
MetaSVM	Benign	-1.0	T
PhyloP100		3.1
PrimateAI	Benign	0.19	T
PROVEAN	Uncertain	-3.1	D
REVEL	Benign	0.21
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0010	D
Polyphen		0.99	D
Vest4		0.28
MutPred		0.55		Gain of catalytic residue at R726 (P = 0.0381)
MVP		0.70
MPC		0.44
ClinPred		0.53	D
GERP RS		4.0
Varity_R		0.18
gMVP		0.18
Mutation Taster		=6/94	disease causing

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

Other links and lift over

dbSNP: rs776245016; hg19: chr17-5461840; COSMIC: COSV52569845;