beta-Keratins

**Definition:** Keratins that form into a beta-pleated sheet structure. They are principle constituents of the corneous material of the carapace and plastron of turtles, the epidermis of snakes and the feathers of birds.

**Tree numbers:** - D05.750.078.593.450.074 - D12.776.220.475.450.074 - D12.776.860.607.074

**Synonyms:** - beta-Keratin