As a stored protein,vitellin is a major protein component accumulated in vitellus granules during the formation of ovotids.The protein plays an important role in the development of embryos.

• 卵黄磷蛋白作为一种蛋白贮藏物，是卵细胞形成期间积累在卵黄颗粒中的一种主要蛋白组份，它在胚胎发育中起着重要的作用。