Stevens L
Oxford University.
Sci Prog. 1996;79 ( Pt 1):65-87.
The principal functions so far attributed to egg proteins are: (i) provision of nutrient for the developing embryo; (ii) protection of the egg from microbial attack; and (iii) transport of nutrients into the developing embryo. All the proteins contribute to the nutrient role in the form of the amino acid residues they contain. Some also contribute to the phosphate reserves. Protection is provided by a variety of means, including the physical barrier of albumen with its high viscosity, and the chemical barriers in the form of protease inhibitors, nutrient sequesters, a lytic enzyme, and antibodies. Various proteins are involved in nutrient uptake, either by acting as carriers or in the form of membrane receptors.
迄今为止，卵蛋白的主要功能包括：（i）为发育中的胚胎提供营养；（ii）保护卵子免受微生物侵袭；（iii）将营养物质输送到发育中的胚胎中。所有蛋白质都以其所包含的氨基酸残基的形式对营养作用做出贡献。一些蛋白质还对磷酸盐储备有贡献。通过多种方式提供保护，包括具有高粘度的蛋清的物理屏障，以及蛋白酶抑制剂、营养螯合剂、一种裂解酶和抗体形式的化学屏障。各种蛋白质通过充当载体或以膜受体的形式参与营养物质的摄取。
