从大鼠和人的脑中提取的肌酸激酶(CK)同工酶BB 经37℃保温,其电泳迁移率有所改变,该变种称为CK-BB′。CK-BB′与CK-MB 的电泳速度相似,介于CK-BB 与CK-MM 之间。临床检查时,CK-BB′可能成为心肌梗塞假阳性CK-MB 的根源。但在体内CK-BB 能否转变为CK-BB′,尚且不明。 Creatine kinase (CK) isoenzyme BB extracted from rat and human brains was incubated at 37 ° C and its electrophoretic mobility was changed. This variant was called CK-BB ’. CK-BB ’and CK-MB electrophoresis speed is similar, between CK-BB and CK-MM. On clinical examination, CK-BB ’may be the source of false-positive CK-MB in myocardial infarction. However, in vivo CK-BB can be transformed into CK-BB ’, still unknown.