Table 1.

MFS-specific diagnostic criteria and results of FBN1 genetic testing

PatientSystemic scoreFamily historyEctopia lentisFBN1 gene pathogenic variant
ExonNucleotide changeAmino acid changeMutation effectTypePathogenicity
PAP33   55 c.6697C>T p.Pro2233Ser Missense DN Likely pathogenic 
PAP37  Present 32 c.3959G>C p.Cys1320Ser Missense DN Likely pathogenic 
PAP39   56 c.6856G>T p.Gly2286Ter Nonsense HI Pathogenic 
PAP46 Present  Intron 38 c.4748-3T>G  Splice site HI Pathogenic 
PAP57 13 Present  c.762delC p.Leu256Serfs*74 Frameshift HI Pathogenic 
PAP70  Present 58 c.7168T>C p.Cys2390Arg Missense DN Pathogenic 
PAP87   Intron 35 c.4337-2A>G  Splice site HI Pathogenic 
PAP90 Present  2–4   CNV HI Pathogenic 
PAP93 Present  14 c.1693C>T p.Arg565Ter Nonsense HI Pathogenic 
PAP100    c.1282_1283delCCinsTG p.Pro428Cys Missense DN Likely pathogenic 
PAP101 Present Present 19 c.2287T>G p.Cys763Gly Missense DN Likely pathogenic 
PAP104  Present 24 c.2809T>C p.Cys937Arg Missense DN Likely pathogenic 

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