ISSN:
1617-4623
Keywords:
Cytoplasmic ribosomes
;
Cycloheximide
;
Chlamydomonas reinhardtii
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Summary In vitro protein synthesis was used to characterize the antibiotic sensitivity of cytoplasmic ribosomes from wild-type and antibiotic-resistant strains of Chlamydomonas reinhardtii. Cytoplasmic ribosomes from two cycloheximide-resistant mutants, act-1 and act-2, were resistant to the antibiotic in vitro. The alteration effected by the act-1 mutation, which was dominant in diploids, was localized to the large subunit of the cytoplasmic ribosomes, but no ribosomal protein alterations were detected using two-dimensional gel electrophoresis. The act-2 mutation, which was semidominant in diploids, was frequently associated with a charge alteration in the large subunit ribosomal protein (r-protein) cyL38 that segregated independently from the antibiotic-resistant phenotype in crosses.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00327192
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