منابع مشابه
The Metabolism of Histidine
The mechanism of and possible cofactors involved in the straight deamination of histidine remain unknown. Neither pyridoxal phosphate, established as a cofactor in transamination of many amino acids, nor biotin, implicated in the straight deamination of aspart,ic acid, apparently plays a role in this reaction (1). Ichihara et al. (2) have reported low levels of histidase in the livers of rats w...
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Collagen associated hydrolysates have desirable characteristics for various industrial applications [1,2]. They have been used as important biomaterial in medical applications because of their biodegradability and weak antigenicity [3]. In addition, intracellular and extra-cellular self-assembly of polypeptide chains and the cross-links between adjacent molecules help collagen fibrils to withst...
متن کاملThe Mammalian Metabolism of L-Histidine
The major pathway of histidine metabolism in animals and bacteria other than incorporation into protein involves first deamination to urocanic acid, then the anaerobic addition of water to form an intermediate generally considered to be 4(5)imidazolone-5(4)-propionic acid (1, 2). Finally, the ring is split enzymatically to ~formiminoglutamic acid (3) which is converted to free cglutamic acid by...
متن کاملThe Rooster and the Butterflies
This paper describes a machine-checked proof of the JordanHölder theorem for finite groups. This purpose of this description is to discuss the representation of the elementary concepts of finite group theory inside type theory. The design choices underlying these representations were crucial to the successful formalization of a complete proof of the Odd Order Theorem with the Coq system.
متن کاملThe Rooster and the Syntactic Bracket
We propose an extension of pure type systems with an algebraic presentation of inductive and co-inductive type families with proper indices. This type theory supports coercions toward from smaller sorts to bigger sorts via explicit type construction, as well as impredicative sorts. Type families in impredicative sorts are constructed with a bracketing operation. The necessary restrictions of pa...
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ژورنال
عنوان ژورنال: Nihon Chikusan Gakkaiho
سال: 1975
ISSN: 1346-907X,1880-8255
DOI: 10.2508/chikusan.46.677