EFFECTS OF 20-HYDROXYECDYSONE ON PROTEIN-SYNTHESIS IN THE EPITHELIAL-CELL LINE FROM CHIRONOMUS-TENTANS

被引:7
|
作者
FRETZ, A [1 ]
LUBBERT, A [1 ]
MARKMANNMULISCH, U [1 ]
SPINDLERBARTH, M [1 ]
SPINDLER, KD [1 ]
机构
[1] HEINRICH HEINE UNIV DUSSELDORF,INST ZOOL,UNIV STR,W-4000 DUSSELDORF 1,GERMANY
关键词
PROTEIN SYNTHESIS; TRANSCRIPTION; 20-OH-ECDYSONE; CHIRONOMUS; INSECT; CELL LINE; MOLTING HORMONE;
D O I
10.1016/0965-1748(93)90095-A
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
In the epithelial cell line of Chironomus tentans growth ceases after addition of 20-hydroxyecdysone. Under the influence of moulting hormone the protein pattern changes as shown by 2-dimensional electrophoresis and silver staining. Incorporation of S-35-labelled methionine reveals qualitative and quantitative changes in the homogenate from the cells and in the proteins secreted into the medium. RNA from cells treated with 20-OH-ecdysone for various times either permanently or with pulses of moulting hormones was expressed in a reticulocyte in vitro translation system. Qualitative changes in the in vitro translated products were first observed after 75 min and continue until day 4 after hormone treatment. A complex pattern of permanent and transient induction and repression of different transcripts is obtained.
引用
收藏
页码:159 / 164
页数:6
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