rs776245016
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
Consequence
NM_033004.4 missense
Scores
Clinical Significance
Conservation
Publications
- corneal intraepithelial dyskeratosis-palmoplantar hyperkeratosis-laryngeal dyskeratosis syndromeInheritance: AD, SD Classification: STRONG, MODERATE, SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, G2P, Ambry Genetics
- autoinflammation with arthritis and dyskeratosisInheritance: AR, SD Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
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ACMG classification
Our verdict: Likely_benign. The variant received -1 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
NLRP1 | NM_033004.4 | c.2176C>T | p.Arg726Trp | missense_variant | Exon 4 of 17 | ENST00000572272.6 | NP_127497.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000658 AC: 1AN: 152038Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000199 AC: 5AN: 251412 AF XY: 0.0000221 show subpopulations
GnomAD4 exome AF: 0.0000109 AC: 16AN: 1461856Hom.: 0 Cov.: 33 AF XY: 0.0000110 AC XY: 8AN XY: 727222 show subpopulations
GnomAD4 genome AF: 0.00000658 AC: 1AN: 152038Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74248 show subpopulations
ClinVar
Submissions by phenotype
Autoinflammation with arthritis and dyskeratosis Pathogenic:1Uncertain:1
- -
This variant is interpreted as a Uncertain Significance, for Autoinflammation with arthritis and dyskeratosis, Autosomal Recessive inheritance. The following ACMG Tag(s) were applied: PM2 => Absent from controls (or at extremely low frequency if recessive) in Exome Sequencing Project, 1000 Genomes Project, or Exome Aggregation Consortium. PP1 => Cosegregation with disease in multiple affected family members in a gene definitively known to cause the disease (PMID:27965258). -
not provided Uncertain:1
In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. ClinVar contains an entry for this variant (Variation ID: 393319). This missense change has been observed in individual(s) with autoinflammation with arthritis and dyskeratosis (PMID: 27965258). This variant is present in population databases (rs776245016, gnomAD 0.005%). This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 726 of the NLRP1 protein (p.Arg726Trp). -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at