rs104895445
Variant summary
Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBS1_SupportingBS2
The NM_001370466.1(NOD2):c.2446G>A(p.Glu816Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000458 in 1,614,050 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/22 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. E816E) has been classified as Likely benign.
Frequency
Consequence
NM_001370466.1 missense
Scores
Clinical Significance
Conservation
Publications
- Blau syndromeInheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Orphanet, Genomics England PanelApp, G2P, Illumina, Labcorp Genetics (formerly Invitae)
- inflammatory bowel disease 1Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)
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ACMG classification
Our verdict: Benign. The variant received -7 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| NOD2 | NM_001370466.1 | c.2446G>A | p.Glu816Lys | missense_variant | Exon 5 of 12 | ENST00000647318.2 | NP_001357395.1 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| NOD2 | ENST00000647318.2 | c.2446G>A | p.Glu816Lys | missense_variant | Exon 5 of 12 | NM_001370466.1 | ENSP00000495993.1 |
Frequencies
GnomAD3 genomes AF: 0.0000788 AC: 12AN: 152238Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000796 AC: 20AN: 251348 AF XY: 0.000103 show subpopulations
GnomAD4 exome AF: 0.0000424 AC: 62AN: 1461812Hom.: 1 Cov.: 31 AF XY: 0.0000509 AC XY: 37AN XY: 727210 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000788 AC: 12AN: 152238Hom.: 0 Cov.: 33 AF XY: 0.0000672 AC XY: 5AN XY: 74366 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Uncertain:2
In silico analysis supports that this missense variant does not alter protein structure/function; Reported in association with susceptibility to Crohn disease in one patient in published literature, but it is unknown if this individual was screened for variants in other genes associated with the phenotype (Lesage et al., 2002); This variant is associated with the following publications: (PMID: 11875755) -
The NOD2 c.2527G>A; p.Glu843Lys variant (rs104895445), is reported in the literature in an individual affected with Chron's disease (Lesage, 2002). This variant is found in the general population with an overall allele frequency of 0.008 % (23/282,748 alleles) in the Genome Aggregation Database. The glutamic acid at codon 843 is highly conserved, but computational analyses are uncertain whether this variant is neutral or deleterious (REVEL: 0.19). Due to limited information, the clinical significance of the p.Glu843Lys variant is uncertain at this time. References: Lesage S et al. CARD15/NOD2 mutational analysis and genotype-phenotype correlation in 612 patients with inflammatory bowel disease. Am J Hum Genet. 2002 Apr;70(4):845-57. PMID: 11875755. -
Regional enteritis;C5201146:Blau syndrome Uncertain:1
This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 843 of the NOD2 protein (p.Glu843Lys). This variant is present in population databases (rs104895445, gnomAD 0.02%). This missense change has been observed in individual(s) with Crohn's disease (PMID: 11875755). ClinVar contains an entry for this variant (Variation ID: 97854). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) 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 affects NOD2 function (PMID: 12626759). 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. -
Autoinflammatory syndrome Uncertain:1
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Blau syndrome Other:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at