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Table 3 Variants of unclassified significance and in silico prediction in South American Lynch syndrome families

From: Mutation spectrum in South American Lynch syndrome families

Country Gene Nucleotide Consequence Exon Polyphen SIFT MAP_MMR P-mut PON-MMR
Score Classification Score Classification Score Classification Score Classification Score Classification
Uruguay MLH1 c.289 T > G p.Y97D 3 0.999 Probably damaging 0 Damaging 10.51 Damaging 0.7266 Pathological 0.83 Pathogenic
Argentina MLH1 c.336 T > A p.H112Q 4 1 Probably damaging 0.03 Damaging 2.430 Neutral NA NA 0.61 VUS
Colombia MLH1 c.421C > G p.P141A 5 0.329 Benign 0.05 Damaging 3.15 Borderline deleterious 0.4928 Neutral 0.48 VUS
Chile MLH1 c.794G > C p.R265P 10 1 Probably damaging 0 Damaging 38.09 Damaging 0.7623 Pathological 0.83 Pathogenic
Brazil MLH1 c.1013A > G p.N338S 11 0.506 Possibly Damaging 0.05 Damaging 2.78 Neutral 0.2551 Neutral 0.38 VUS
Colombia MLH1 c.1558 + 14G > A   13 NA NA NA NA NA NA NA NA NA NA
Argentina MLH1 c.1724G > A p.R575K 15 0.001 Benign 0.40 Tolerated 1.490 Neutral NA NA 0.15 Neutral
Brazil MLH1 c.1853A > C p.K618T 16 0.997 Probably damaging 0.02 Damaging 5.11 Damaging 0.7802 Pathological 0.67 VUS
Colombia MLH1 c.1918C > T p.P640T 17 1 Probably damaging 0 Damaging 17.77 Damaging 0.6534 Pathological 0.83 Pathogenic
Brazil MLH1 c.2252_2253dupAA p.V752Kfs*26 19 NA NA NA NA NA NA NA NA NA NA
Brazil MSH2 c.2187G > T p.M729I 13 2.293 Probably damaging 0 Damaging 21.99 Damaging 0.1988 Neutral 0.71 VUS
  1. MLH1 (MIM#120436), MSH2 (MIM#609309), NA: not applicable, VUS: variants of unclassified significance, If SIFT score <0.05 then the aminoacid (AA) substitution is predicted to affect protein function, if PolyPhen score >0.5 then the AA substitution is predicted to affect protein function, if MAPP-MMR score >4.55 then the AA substitution is predicted to affect protein function, If P-mut score > 0.5, the AA substitution is classified as pathological, if PON-MMR score >0.7615, the AA substitution is classified as pathogenic.