纤维状蛋白质的氨基酸序列很有规律，它们形成比较单一的、有规律的二级结构，结果整个分子形成有规律的线形结构，呈现纤维状或细棒状，分子轴比（轴比：长轴/短轴）大于10，轴比小于10的是球状蛋白质。

广泛分布于脊椎和无脊椎动物体内，占脊椎动物体内蛋白质总量的50%以上，起支架和保护作用。

https://s3-us-west-2.amazonaws.com/secure.notion-static.com/e091bd99-8341-4040-a65c-c2d46f756716/Untitled.png

https://s3-us-west-2.amazonaws.com/secure.notion-static.com/62495943-9b0b-4043-92a0-68f865d7a9f1/Untitled.png

a-角蛋白

https://s3-us-west-2.amazonaws.com/secure.notion-static.com/1f149738-cb3d-4715-b1c0-76a634ff71c8/Untitled.png

https://s3-us-west-2.amazonaws.com/secure.notion-static.com/2bb40c59-bef6-4136-9d92-ddef79142b92/Untitled.png

B折叠片蛋白

https://s3-us-west-2.amazonaws.com/secure.notion-static.com/3fa3de70-4a3a-4b9c-b233-d28962234fbc/Untitled.png

https://s3-us-west-2.amazonaws.com/secure.notion-static.com/d768a0d3-25f3-49fa-bd6d-51edbff6af8a/Untitled.png

https://s3-us-west-2.amazonaws.com/secure.notion-static.com/6ea6c44a-80df-494a-97a1-3648c02a7497/Untitled.png

https://s3-us-west-2.amazonaws.com/secure.notion-static.com/f20d77d1-d6ab-42f9-a706-90c9e0888d2b/Untitled.png

胶原蛋白

https://s3-us-west-2.amazonaws.com/secure.notion-static.com/be15f5e2-f3db-42b4-8383-5dfa8e433e56/Untitled.png

https://s3-us-west-2.amazonaws.com/secure.notion-static.com/71524ca7-58d4-43a1-84b8-2c1214b2f112/Untitled.png

https://s3-us-west-2.amazonaws.com/secure.notion-static.com/b3ed4161-8228-4641-89e6-eb04ed2b19ed/Untitled.png

https://s3-us-west-2.amazonaws.com/secure.notion-static.com/17e4c59a-171f-46a5-b48c-684a07d3787b/Untitled.png

Hyp是胶原蛋白链形成后通过修饰正常的Pro而形成的，对胶原蛋白的稳定性至关重要。这个反应需要维生素C来协助添加氧气。但是我们不能在体内合成维生素C，我们需要从饮食中补充维生素C。维生素C缺乏会减少Hyp的生成，并阻止新胶原的构建，最终导致坏血病，

弹性蛋白

https://s3-us-west-2.amazonaws.com/secure.notion-static.com/926f08d7-2941-41f0-b796-03a1025604ca/Untitled.png

https://s3-us-west-2.amazonaws.com/secure.notion-static.com/37597a65-37ba-4b42-a6bc-9f4d6c342f7c/Untitled.png