Umemoto N, Kobayashi O, Ishizaki-Nishizawa O, Toguri T
Central Laboratory for Key Technology, Kirin Brewery Co., Yokohama, Japan.
FEBS Lett. 1993 Sep 13;330(2):169-73. doi: 10.1016/0014-5793(93)80266-w.
Three cytochrome P450 (P450) cDNAs were isolated from an eggplant hypocotyl cDNA library using eggplant CYP75 cDNA as a probe. These cDNAs have greater than 65% identity in their amino acid sequences, indicating that they belong to the same family. Comparison of these with P450 proteins from other sources showed that the protein with the greatest degree of homology is CYP71, isolated from avocado fruits (approximately 48%). We concluded that they are novel members of the CYP71 gene family (CYP71A2, 3 and 4). We have examined the level of mRNA transcripts from the CYP71 family in eggplant hypocotyl tissues and petunia flower buds, and found that the level of transcripts is developmentally regulated in the flower bud.
以茄子CYP75 cDNA为探针,从茄子下胚轴cDNA文库中分离出三个细胞色素P450(P450)cDNA。这些cDNA的氨基酸序列具有大于65%的同一性,表明它们属于同一家族。将这些序列与其他来源的P450蛋白进行比较,结果显示同源性最高的蛋白是从鳄梨果实中分离出的CYP71(约48%)。我们得出结论,它们是CYP71基因家族的新成员(CYP71A2、3和4)。我们检测了茄子下胚轴组织和矮牵牛花芽中CYP71家族mRNA转录本的水平,发现花芽中该转录本的水平受发育调控。