FBN1 (Fibrillin 1)

FBN1, or Fibrillin 1, is a gene that provides instructions for making a protein essential for the structure and strength of connective tissues in the body. Connective tissues support organs and other body parts, playing a crucial role in flexibility and stability. Mutations in the FBN1 gene can lead to Marfan syndrome, a genetic disorder that affects the heart, blood vessels, bones, and eyes, resulting in features like tall stature and long limbs. Overall, FBN1 is vital for maintaining the integrity of our body's connective tissues, influencing growth and development.