16-50699751-G-A
Variant summary
Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong
The NM_001370466.1(NOD2):c.256G>A(p.Asp86Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000112 in 1,613,822 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/23 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. D86D) has been classified as Likely benign.
Frequency
Consequence
NM_001370466.1 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Our verdict: Likely_benign. The variant received -4 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
NOD2 | NM_001370466.1 | c.256G>A | p.Asp86Asn | missense_variant | Exon 2 of 12 | ENST00000647318.2 | NP_001357395.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000329 AC: 5AN: 152188Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000280 AC: 7AN: 250016 AF XY: 0.0000295 show subpopulations
GnomAD4 exome AF: 0.00000889 AC: 13AN: 1461634Hom.: 0 Cov.: 33 AF XY: 0.00000963 AC XY: 7AN XY: 727124 show subpopulations
GnomAD4 genome AF: 0.0000329 AC: 5AN: 152188Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74342 show subpopulations
ClinVar
Submissions by phenotype
Regional enteritis;C5201146:Blau syndrome Uncertain:1
This sequence change replaces aspartic acid, which is acidic and polar, with asparagine, which is neutral and polar, at codon 113 of the NOD2 protein (p.Asp113Asn). This variant is present in population databases (rs104895468, gnomAD 0.01%). This missense change has been observed in individual(s) with Crohn disease (PMID: 15024686). ClinVar contains an entry for this variant (Variation ID: 97876). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt NOD2 protein function with a negative predictive value of 95%. Experimental studies have shown that this missense change does not substantially affect NOD2 function (PMID: 26500656). 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. -
Blau syndrome Other:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at