Fibril and hence the whole muscle. Elastin is a fibrous protein common in various soft tissues, like skin, blood vessels and lung tissue. Each monomer connects with each other, forming a 3D network, with ability to endure over 200% strain before deformation. Keratin is a structural protein mainly found in hair, nails, hooves, horns, quills. Basically keratin is formed by polypeptide chains, which coil into α-helices with sulfur cross-links or bond into β-sheets linked by hydrogen bonding. β-keratin, which is tougher than α-conformation, is more common in birds and reptiles. Resilin is an elastomeric insect protein, consisting of both α-helices and
What Is the Fastest Thing in the World? owner. She called out which was the rightful owner, and the king said she had meddled and must go home. She asked him to eat one last meal with her, and then she drugged it. When he was asleep, she put him in the carriage and went home. When the king woke, she told him she was entitled to him, because she valued him most of everything in the castle. The king took her back to the castle and gave her the right to judge all his affairs. What Is the Fastest Thing in the World? What Is the Fastest