Cycloheximide resistance conferred by novel mutations in ribosomal protein L41 of Chlamydomonas reinhardtii

2001 ◽  
Vol 264 (6) ◽  
pp. 790-795 ◽  
Author(s):  
D. R. Stevens ◽  
A. Atteia ◽  
L.-G. Franzén ◽  
S. Purton
2004 ◽  
Vol 279 (22) ◽  
pp. 23030-23037 ◽  
Author(s):  
Hiroaki Takaku ◽  
Eishun Mutoh ◽  
Yoshiyuki Sagehashi ◽  
Ryouichi Fukuda ◽  
Hiroyuki Horiuchi ◽  
...  

2003 ◽  
Vol 69 (7) ◽  
pp. 4256-4259 ◽  
Author(s):  
Yoshiko Okamoto-Hosoya ◽  
Susumu Okamoto ◽  
Kozo Ochi

ABSTRACT Certain rpsL (which encodes the ribosomal protein S12) mutations that confer resistance to streptomycin markedly activate the production of antibiotics in Streptomyces spp. These rpsL mutations are known to be located in the two conserved regions within the S12 protein. To understand the roles of these two regions in the activation of silent genes, we used site-directed mutagenesis to generate eight novel mutations in addition to an already known (K88E) mutation that is capable of activating antibiotic production in Streptomyces lividans. Of these mutants, two (L90K and R94G) activated antibiotic production much more than the K88E mutant. Neither the L90K nor the R94G mutation conferred an increase in the level of resistance to streptomycin and paromomycin. Our results demonstrate the efficacy of the site-directed mutagenesis technique for strain improvement.


1993 ◽  
Vol 213 (2) ◽  
pp. 841-848 ◽  
Author(s):  
Pierre DEHOUX ◽  
Julian DAVIES ◽  
Michael CANNON

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Muhammad Tahir Khan ◽  
Abbas Khan ◽  
Ashfaq Ur Rehman ◽  
Yanjie Wang ◽  
Khalid Akhtar ◽  
...  

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