氨甲酰基 meaning in Chinese
carbamino
carbamoyl
carbamyl group
carbamyl-
Examples
- To improve the production and activity of the enzyme , the hydantoin hydrolase gene ( hyuh ) was cloned into e . coli m15 and bl21 ( de3 ) by using vector pqe60 and pt221 respectively . two expression plasmids were thus constructed
用pcr技术从质粒puc18 - 169中扩增出l -乙内酰脲水解酶基因( hyuh )和n -氨甲酰基氨基酸水解酶基因( hyuc ) ，分别在大肠杆菌和毕赤酵母中实现了活性表达。 - As far as the enzymatic activity is concerned , on the one hand , strain yz - ii6 has higher d - hydantoinase activity and lower d - carbamoylase activity so as not to be suitable for one - step bioconversion of d - amino acids , on the other hand , the higher hydantoinase activity , engineered strain in particular , may be convenient to be as a biocatalyst to produce n - carbamyl d - amino acids which hard to find in the markets
Yz - 6菌具有较高的海因酶活性，但n -氨甲酰基d -氨基酸酰氨水解酶活性很低，仍不适合用于d -型氨基酸生产工艺中的一步法转化。另一方面，含海因酶基因的人工菌株不但酶活性高，也排除了天然菌株转化生产d -型氨基酸过程中的一些副产物。 - Hydantoinases which consist of hydantoin hydrolase , n - carbamoylase and sometimes hydantoin racemase can hydrolyze d , l - 5 - substituted hydantoin into corresponding optically active amino acids . therefore , the hydantoinases from micro - organisms are widely applied to the industrial production of natural and unnatural amino acids . microbial hydantoinases are considered as industrial enzymes from the origin of life
乙内酰脲酶是广泛存在于动物、植物和微生物的一类酶系，包括乙内酰脲水解酶( hydantoinhydrolase ， hyuh )和n -氨甲酰基氨基酸水解酶( n - carbamoylase ， hyuc ) ，有些情况下还包括乙内酰脲消旋酶( hydantoinracemase ， hyur ) 。 - The l - n - carbamoylase of arthrobacter bt801 , coded by the hyuc gene , is the rate - limiting and the only stereoselective enzyme . hydantoin hydrolase gene ( hyuh ) and n - carbamoylase gene ( hyu c ) were amplified from the plasmid of puc18 - 169 by pcr and , at the same time , activity expression was obtained in e . coli and pichia pastor is gs115 respectively
节杆菌bt801的乙内酰脲水解酶催化乙内酰脲类化合物水解开环， n -氨甲酰基氨基酸水解酶是该菌乙内酰脲酶系中惟一具有立体选择性的酶，也是整个反应体系的限速酶。