http://www.childrenshospital.org/conditions-and-treatments/conditions/marfan-syndrome Day 295 has 81 protein-coding genes (browser view) including FBN1 (fibrillin 1).
Fibrillin forms connective structures outside the cell, forming the scaffold for elastin (Day 153 (7q11.21-7q11.23): elastin, a springy protein). Mutations cause Marfan Syndrome.
Click here to see all 8499266 letters of Day 295