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Title: alpha-Amanithin-resistant mutants of Chinese hamster ovary (CHO) cells. Author: Gupta KC, Taylor MW. Journal: Mutat Res; 1978 Jan; 49(1):65-101. PubMed ID: 622084. Abstract: Spontaneous and EMS-induced alpha-amanitin-resistant CHO cells have been isolated and characterized. DNA-dependent RNA polymerase II in cell-free extracts from a mutant (ARM-1) was partially resistant to alpha-amanitin. Growing mutants for several generations in the presence or absence of alpha-amanitin did not change the pattern of inhibition. The mutants grew with a lag following transfer to medium with or without alpha-amanitin. The mutants have an altered RNA polymerase II, and possibly an altered cell membrane.[Abstract] [Full Text] [Related] [New Search]