保护碱 meaning in Chinese

protective alkali
protectivealkali

We amplify the angiostatin gene by rt - pcr and introduce the restriction endonulease sites of ecor i and xba i and their corresponding protective bases in the primers . in this part , we succeed in obtaining genes of angiostatin ( kringle 1 - 4 domains ) and plg kringle 1 - 5 domains and sequence the pcr product of kringle 1 - 5 domains
其次，在其完整性及纯度鉴定后做rt - pcr扩增目的基因as ，分别在上下游引物引入限制性内切酶ecori与xbai的酶切位点及相对应的保护碱基。