Isocitric Acid

isocitric acid

[¦ī·sə¦si·trik ′as·əd] (biochemistry) HOOCCH₂CH(COOH)CH(OH)COOH An isomer of citric acid that is involved in the Krebs tricarboxylic acid cycle in bacteria and plants.

Isocitric Acid

an organic tricarboxylic acid; one of the intermediate substrates of the tricarboxylic acid cycle.

Isocitric acid forms in an organism from citric acid and cisaconitic acid as a result of enzymatic conversion. With involvement of the enzyme isocitrate dehydrogenase, isocitric acid is converted, through oxalosuccinic acid, to α-ketoglutaric acid. With the aid of the enzyme isocitratelyase in the glyoxalate cycle, isocitric acid decomposes to succinic and glyoxylic acids.

isocitric acid

cycle

[si´k'l] a succession or recurring series of events.cardiac cycle a complete cardiac movement, or heart beat, including systole, diastole, and the intervening pause.

Cardiac cycle. From Applegate, 2000.cell cycle the cycle of biochemical and morphological events occurring in a reproducing cell population; it consists of the S phase, occurring toward the end of interphase, in which DNA is synthesized; the G₂ phase, a relatively quiescent period; the M phase, consisting of the four phases of mitosis; and the G₁ phase of interphase, which lasts until the S phase of the next cycle.citric acid cycle tricarboxylic acid cycle.estrous cycle the recurring periods of estrus in adult females of most mammalian species and the correlated changes in the reproductive tract from one period to another.hair cycle the successive phases of the production and then loss of hair, consisting of anagen, catagen, and telogen.Krebs cycle tricarboxylic acid cycle.menstrual cycle see menstrual cycle.ovarian cycle the sequence of physiologic changes in the ovary involved in ovulation; see also ovulation and reproduction.reproductive cycle the cycle of physiologic changes in the reproductive organs, from the time of fertilization of the ovum through gestation and childbirth; see also reproduction.sex cycle (sexual cycle) 1. the physiologic changes that recur regularly in the reproductive organs of nonpregnant female mammals.2. the period of sexual reproduction in an organism that also reproduces asexually.TCA cycle tricarboxylic acid cycle.tricarboxylic acid cycle the cyclic metabolic mechanism by which the complete oxidation of the acetyl portion of acetyl-coenzyme A is effected; the process is the chief source of mammalian energy, during which carbon chains of sugars, fatty acids, and amino acids are metabolized to yield carbon dioxide, water, and high-energy phosphate bonds. Called also citric acid cycle, Krebs cycle, and TCA cycle.

Central pathways of metabolism: How the body produces energy from the energy-containing nutrients using the tricarboxylic acid cycle. From Davis and Sherer, 1994.urea cycle a cyclic series of reactions that produce urea" >urea; it is a major route for removal of the ammonia produced in the metabolism of amino acids in the liver and kidney.

i·so·cit·ric ac·id

(ī'sō-sit'rik as'id), An intermediate in the tricarboxylic acid cycle.

i·so·cit·ric ac·id

(ī'sō-sit'rik as'id) An intermediate in the tricarboxylic acid cycle.

单词	isocitric acid
释义	DictionarySeecycle Isocitric Acid isocitric acid [¦ī·sə¦si·trik ′as·əd] (biochemistry) HOOCCH₂CH(COOH)CH(OH)COOH An isomer of citric acid that is involved in the Krebs tricarboxylic acid cycle in bacteria and plants. Isocitric Acid an organic tricarboxylic acid; one of the intermediate substrates of the tricarboxylic acid cycle. Isocitric acid forms in an organism from citric acid and cisaconitic acid as a result of enzymatic conversion. With involvement of the enzyme isocitrate dehydrogenase, isocitric acid is converted, through oxalosuccinic acid, to α-ketoglutaric acid. With the aid of the enzyme isocitratelyase in the glyoxalate cycle, isocitric acid decomposes to succinic and glyoxylic acids. isocitric acid cycle [si´k'l] a succession or recurring series of events.cardiac cycle a complete cardiac movement, or heart beat, including systole, diastole, and the intervening pause.Cardiac cycle. From Applegate, 2000.cell cycle the cycle of biochemical and morphological events occurring in a reproducing cell population; it consists of the S phase, occurring toward the end of interphase, in which DNA is synthesized; the G₂ phase, a relatively quiescent period; the M phase, consisting of the four phases of mitosis; and the G₁ phase of interphase, which lasts until the S phase of the next cycle.citric acid cycle tricarboxylic acid cycle.estrous cycle the recurring periods of estrus in adult females of most mammalian species and the correlated changes in the reproductive tract from one period to another.hair cycle the successive phases of the production and then loss of hair, consisting of anagen, catagen, and telogen.Krebs cycle tricarboxylic acid cycle.menstrual cycle see menstrual cycle.ovarian cycle the sequence of physiologic changes in the ovary involved in ovulation; see also ovulation and reproduction.reproductive cycle the cycle of physiologic changes in the reproductive organs, from the time of fertilization of the ovum through gestation and childbirth; see also reproduction.sex cycle (sexual cycle) 1. the physiologic changes that recur regularly in the reproductive organs of nonpregnant female mammals.2. the period of sexual reproduction in an organism that also reproduces asexually.TCA cycle tricarboxylic acid cycle.tricarboxylic acid cycle the cyclic metabolic mechanism by which the complete oxidation of the acetyl portion of acetyl-coenzyme A is effected; the process is the chief source of mammalian energy, during which carbon chains of sugars, fatty acids, and amino acids are metabolized to yield carbon dioxide, water, and high-energy phosphate bonds. Called also citric acid cycle, Krebs cycle, and TCA cycle. Central pathways of metabolism: How the body produces energy from the energy-containing nutrients using the tricarboxylic acid cycle. From Davis and Sherer, 1994.urea cycle a cyclic series of reactions that produce urea" >urea; it is a major route for removal of the ammonia produced in the metabolism of amino acids in the liver and kidney. i·so·cit·ric ac·id (ī'sō-sit'rik as'id), An intermediate in the tricarboxylic acid cycle. i·so·cit·ric ac·id (ī'sō-sit'rik as'id) An intermediate in the tricarboxylic acid cycle. FinancialSeeCycle
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