Krebs-Henseleit cycle

u·re·a cy·cle

the sequence of chemical reactions, occurring primarily in the liver, that results in the production of urea; the key reaction is the hydrolysis of l-arginine by arginase to l-ornithine and urea; l-ornithine is then converted to l-citrulline by a carbamoylation reaction, then to l-argininosuccinate by an amination reaction involving l-aspartic acid; finally, a lyase-dependent step generates arginine and fumarate. Synonym(s): Krebs-Henseleit cycle, Krebs ornithine cycle, Krebs urea cycle, ornithine cycle

Henseleit,

K., German internist, 1907–. Krebs-Henseleit cycle - see under Krebs, Sir Hans Adolph

Krebs,

Sir Hans Adolph, German biochemist in England and Nobel laureate, 1900-1981. Krebs cycle - together with oxidative phosphorylation, the main source of energy in the mammalian body and the end toward which carbohydrate, fat, and protein metabolism are directed. Synonym(s): tricarboxylic acid cycleKrebs-Henseleit cycle - the sequence of chemical reactions, occurring primarily in the liver, that results in the production of urea. Synonym(s): urea cycleKrebs-Ringer solution - a modification of Ringer solution.

单词	krebs-henseleit cycle
释义	DictionarySeeurea cycle Krebs-Henseleit cycle Krebs-Henseleit cycle [′krebz ′hen·sə‚līt ‚sī·kəl] (biochemistry) A cyclic reaction pathway involving the breakdown of arginine to urea in the presence of arginase. Krebs-Henseleit cycle u·re·a cy·cle the sequence of chemical reactions, occurring primarily in the liver, that results in the production of urea; the key reaction is the hydrolysis of l-arginine by arginase to l-ornithine and urea; l-ornithine is then converted to l-citrulline by a carbamoylation reaction, then to l-argininosuccinate by an amination reaction involving l-aspartic acid; finally, a lyase-dependent step generates arginine and fumarate. Synonym(s): Krebs-Henseleit cycle, Krebs ornithine cycle, Krebs urea cycle, ornithine cycle Henseleit, K., German internist, 1907–. Krebs-Henseleit cycle - see under Krebs, Sir Hans Adolph Krebs, Sir Hans Adolph, German biochemist in England and Nobel laureate, 1900-1981. Krebs cycle - together with oxidative phosphorylation, the main source of energy in the mammalian body and the end toward which carbohydrate, fat, and protein metabolism are directed. Synonym(s): tricarboxylic acid cycleKrebs-Henseleit cycle - the sequence of chemical reactions, occurring primarily in the liver, that results in the production of urea. Synonym(s): urea cycleKrebs-Ringer solution - a modification of Ringer solution. FinancialSeeCycleThesaurusSeecycle
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