Clothes moths are among the few animals that can digest this protein, which is also found in the baleen (buh-LEEN) of whales.
Ichthyosis bullosa (ik-thee-OH-sis buh-LOH-sah) of Siemens (SEE-mens) is one disease caused by a mutation in the gene for this protein, which makes up the intermediate filaments found in desmosomes (DEHZ-moh-sohmz).  Ringworm fungi (FUN-gai) feed on this protein, produced in large quantities by cornified cells, and the high number of disulfide bridges within this protein make it insoluble in water. Clothes moths are among the few animals that can digest this protein, which is also found in the baleen (buh-LEEN) of whales. Forming the shells of turtles and the horns of rhinos, name this epidermal protein found in hooves, claws, nails, and hair.
Ichthyosis bullosa (ik-thee-OH-sis buh-LOH-sah) of Siemens (SEE-mens) is one disease caused by a mutation in the gene for this protein, which makes up the intermediate filaments found in desmosomes (DEHZ-moh-sohmz).  
keratin