Pestov D G, Lau L F
Department of Genetics, University of Illinois College of Medicine, Chicago 60612.
Proc Natl Acad Sci U S A. 1994 Dec 20;91(26):12549-53. doi: 10.1073/pnas.91.26.12549.
To assess the role of mitogenically activated genes in the control of cell proliferation, we have taken a genetic approach based on the premise that blocking the function of an essential gene should lead to growth inhibition. Using a newly developed selection procedure, we isolated growth-inhibitory sequences from a pool of random cDNA fragments of 19 growth-related genes associated with the G0/G1 transition. These sequences encode potential dominant negative variants of c-Fos, JunB, and p44MAPK that may interfere with their growth-related functions. We anticipate that this procedure, which allows for the selection of sequences that cause a growth-inhibition phenotype, may have broad applications in the identification and analysis of genes that regulate cell growth.
为了评估有丝分裂原激活基因在控制细胞增殖中的作用,我们采用了一种基于以下前提的遗传学方法:阻断一个必需基因的功能应导致生长抑制。利用新开发的筛选程序,我们从与G0/G1期转换相关的19个生长相关基因的随机cDNA片段库中分离出了生长抑制序列。这些序列编码可能干扰其生长相关功能的c-Fos、JunB和p44MAPK的潜在显性负变体。我们预计,这种能够筛选出导致生长抑制表型序列的程序,可能在调节细胞生长的基因的鉴定和分析中具有广泛的应用。