Abstract
An mRNA-dependent cell-free translation system has been developed from the human pathogenic fungus Candida albicans using either S30 or S100 lysates prepared from glass-bead-disrupted whole cells. Translation of the synthetic template poly(U) in this system is highly efficient at temperatures up to 37 degrees C and is ATP-dependent. Studies using a range of elongation-specific inhibitors suggest that the mechanism of translational elongation in C. albicans is similar to that of another yeast, Saccharomyces cerevisiae. A micrococcal-nuclease-treated C. albicans S100 lysate was able to translate exogenously-supplied homologous mRNAs, and a range of heterologous natural mRNAs, using an initiation mechanism that is inhibited by the antibiotic edeine and the 5' cap analogue 7-methylguanosine 5'-monophosphate (m7GMP). As with cell-free lysates prepared from S. cerevisiae, the C. albicans lysate is unable to initiate translation upon natural mRNAs at temperatures above 20 degrees C.
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