大西洋鳕鱼（Gadus morhua）嗜铬组织和神经组织中酪氨酸羟化酶（EC 1.14.16.2）的活性。
Activity of tyrosine hydroxylase (EC 1.14.16.2) from chromaffin and nervous tissue of the Atlantic cod, Gadus morhua.
作者信息
Jönsson A C, Nilsson S
出版信息
Comp Biochem Physiol C Comp Pharmacol Toxicol. 1983;75(1):39-42. doi: 10.1016/0742-8413(83)90008-7.
PMID:6135559
Abstract
- The activity of tyrosine hydroxylase (TH; EC 1.14.16.2) was estimated in vitro in crude tissue homogenates from the posterior cardinal veins (chromaffin tissue) and the coeliac ganglion (adrenergic neurons) of the Atlantic cod, Gadus morhua. 2. TH from the chromaffin tissue showed its highest activity at pH = 6.0 and a temperature of 30-35 degrees C, and was stimulated by low concentrations of catalase (20 micrograms/ml). 3. Estimations of the absolute TH activity in vitro showed values of 110 +/- 30 nmol/g X hr for the chromaffin tissue and 1120 +/- 280 nmol/g X hr for the coeliac ganglion.
摘要
- 对大西洋鳕鱼（Gadus morhua）后腔静脉（嗜铬组织）和腹腔神经节（肾上腺素能神经元）的粗组织匀浆进行体外酪氨酸羟化酶（TH；EC 1.14.16.2）活性测定。2. 嗜铬组织中的TH在pH = 6.0、温度30 - 35摄氏度时活性最高，且受到低浓度过氧化氢酶（20微克/毫升）的刺激。3. 体外绝对TH活性测定结果显示，嗜铬组织的值为110±30纳摩尔/克×小时，腹腔神经节的值为1120±280纳摩尔/克×小时。
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