Heimberger A, Eisenstark A
Division of Biological Sciences, University of Missouri, Columbia 65211.
Biochem Biophys Res Commun. 1988 Jul 15;154(1):392-7. doi: 10.1016/0006-291x(88)90698-5.
Escherichia coli possess three catalase genes: katG codes for protein HPI and katE codes for HPII; katF is also needed for HPII but may be a positive regulatory gene for katE. We have assayed for HPI and HPII in the outer cell membrane, the periplasmic space, the inner membrane, and in the cytoplasm of E. coli. Following synthesis of catalase in the cytoplasm the active katG gene product (HPI) was found in the periplasmic and in the cytoplasmic membrane fractions. HPII remained in the cytoplasm.
katG编码蛋白HPI，katE编码HPII；HPII的产生也需要katF，但katF可能是katE的一个正向调节基因。我们已经检测了大肠杆菌外细胞膜、周质空间、内膜和细胞质中的HPI和HPII。在细胞质中合成过氧化氢酶后，发现活性katG基因产物（HPI）存在于周质和细胞质膜组分中。HPII则保留在细胞质中。
