committed step中文什么意思

关键步骤

关键反应

• commit:    vt. 1.犯(罪等)；干(坏事等) ...
• step:    vi. (-pp-) 1.走；跨步。 ...
• be committed to:    被交给; 委身于; 以为己任; 致力 ...

例句与用法

1. This is the reason for being good at group learning is a committed step of organizing a studying type group
   这就是为什么精熟团队学习是建立学习型组织的一个关键步骤。
2. In escherichia coli , arog gene encodes phenylalanine - sensitive 3 - deoxy - d - arabino - heptulosonate - 7 - phosphate synthase isoenzyme arog that catalyzes the first committed step of shikimate pathway . here we study the essential amino acid residues involved in the formation of feedback inhibition site of arog , and the effects of n - terminus on feedback inhibition and its quaternary structure , and the importance of the structural " d2 " symmetry to allosteric inhibition
   本博士论文工作以大肠杆菌k - 12来源的arog为研究对象，通过定点突变、反馈抑制实验和酶学动力学参数的测定，深入地研究了arog的反馈抑制位点的特性，并对arog的n -末端在反馈抑制机理和维持稳定四级结构中的作用，以及蛋白质结构的“ d2 ”对称性对酶功能的重要性等进行了具体的研究。
3. Objective the present study was to investigate the effects of endotoxin on capacitation and acrosome reaction ( ar ) of mouse , golden hamster and human sperm , on the sperm - oocyte fusion in mouse , and on the development of 1 - cell , 2 - cell and zona - free 2 - cell mouse embryos in vitro . the purpose was to definite the committed step and the mechanism during in vitro fertilization ( ivf ) on which endotoxin affected , and to distinguish the sensitivities to endotoxin of three developmental systems of mouse embryos . all these data would provide the reference to clinical and laboratory quality control
   目的研究内毒素对小鼠、金黄地鼠及人精子的体外获能和顶体反应、小鼠精卵结合及小鼠1 -细胞、 2 -细胞和去卵透明带2 -细胞胚胎体外发育的影响，探讨内毒素影响体外受精结局的环节及可能的机制，确定三个体外培养系统对内毒素的敏感性，以期为临床和实验室质量控制提供参考。

百科释义

In enzymology, the committed step (also known as the first committed step) is an effectively irreversible enzymatic reaction that occurs at a branch point during the biosynthesis of some molecules.