New data on the link between the polysaccharide prosthetic group and protein in ovalbumin
1962; Elsevier BV; Volume: 65; Issue: 1 Linguagem: Inglês
10.1016/0006-3002(62)90169-5
ISSN1878-2434
AutoresViktor P. Bogdanov, E. D. Kaverzneva, A. Andrejeva,
Tópico(s)Muscle metabolism and nutrition
ResumoThis chapter describes the nature of protein-bound phosphate: structural and reactive versatility; phosphoproteins of eggs and milk; phosphoproteins of organs, cells, and organelles; structural phosphoproteins; and enzymatic cleavage and formation of the protein–phosphate bond. Phosphoproteins as chemical entities are versatile and dynamic. As components of biological systems, they are important and crucial. They maintain structures, provide for functional interactions, promote and regulate metabolic processes, mediate neural and humoral control mechanisms, transport across membranes, and may have a determining influence on genic events. All major types of phosphoryl transfer enzymes are represented among phosphoenzymes, and the type of the phosphate–enzyme bond may be any one of four major types: phosphoester, pyrophosphoester, phosphoramidate, and mixed phosphoanhydride. Structurally, phosphoproteins vary in terms of the nature of the protein–phosphate bond over a relatively wide range. However, their biology may want more molecular analysis and their chemistry may need more cellular integration.
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