rs121909589
Variant summary
Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.
The NM_172351.3(CD46):c.718T>C(p.Ser240Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000434 in 1,613,692 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Consequence
NM_172351.3 missense
Scores
Clinical Significance
Conservation
Publications
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ACMG classification
Our verdict: Uncertain_significance. The variant received 0 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152138Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.00000398 AC: 1AN: 251270 AF XY: 0.00000736 show subpopulations
GnomAD4 exome AF: 0.00000411 AC: 6AN: 1461554Hom.: 0 Cov.: 31 AF XY: 0.00000413 AC XY: 3AN XY: 727064 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152138Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74326 show subpopulations
ClinVar
Submissions by phenotype
not provided Uncertain:1
This sequence change replaces serine, which is neutral and polar, with proline, which is neutral and non-polar, at codon 240 of the CD46 protein (p.Ser240Pro). This variant is present in population databases (rs121909589, gnomAD 0.004%). This missense change has been observed in individual(s) with hemolytic uremic syndrome (PMID: 14566051). This variant is also known as T822C S206P. ClinVar contains an entry for this variant (Variation ID: 17046). 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 CD46 protein function with a negative predictive value of 80%. Experimental studies have shown that this missense change affects CD46 function (PMID: 14566051). 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. -
Atypical hemolytic-uremic syndrome with MCP/CD46 anomaly Other:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at