11-57614475-G-C
Variant summary
Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PM1PM2PM5PP3_ModeratePP5_Moderate
The NM_000062.3(SERPING1):c.1397G>C(p.Arg466Pro) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R466L) has been classified as Likely pathogenic.
Frequency
Consequence
NM_000062.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 10 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD4 exome Cov.: 31
GnomAD4 genome Cov.: 32
ClinVar
Submissions by phenotype
not provided Pathogenic:1
The R466P variant has been published previously as R444P in association with hereditary angioedema type II (Blanch et al., 2002). The variant is not observed in large population cohorts (Lek et al., 2016; 1000 Genomes Consortium et al., 2015; Exome Variant Server). R466P is a non-conservative amino acid substitution, which is likely to impact secondary protein structure as these residues differ in polarity, charge, size and/or other properties. This substitution occurs at a position that is conserved across species. The R466 residue is the P1 reactive site residue, and variants at this position interfere with normal protein function (Skriver et al., 1989). Additionally, tn silico analysis predicts this variant is probably damaging to the protein structure/function. Missense variants in the same residue (R466C/S/G/H/L) and in nearby residues (A461P/V, I462S, A465V, T467P) have been reported in the Human Gene Mutation Database in association with hereditary angioedema (Stenson et al., 2014), supporting the functional importance of this region of the protein. In summary, we consider this variant to be pathogenic. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at