Products of mitochondrial protein synthesis in Tetrahymena.
The products of mitochondrial protein synthesis have been investigated in Tetrahymena after labelling with [35S]methionine in the presence of cycloheximide. The labelled proteins were analyzed by sodium dodecyl sulfate slab polyacrylamide gel electrophoresis. We have identified 13 electrophoretically discrete bands as well as 4 other bands with a more variable occurrence. These proteins ranged in apparent molecular weight from 8100 to 57,500. The cycloheximide-resistant incorporation could be blocked with chloramphenicol. The mitochondrial proteins appeared to be in a disaggregated state and were stable to agents such as trichloroacetic acid (hot or cold) and chloroform-methanol. The pattern of proteins was similar following labelling times ranging from 30 min to 3 h.
D000818:Animals; D002701:Chloramphenicol / Q000494:pharmacology*; D003513:Cycloheximide / Q000494:pharmacology*; D003593:Cytoplasm / Q000378:metabolism; D007700:Kinetics; D008928:Mitochondria / Q000187:drug effects / Q000378:metabolism*; D008970:Molecular Weight; D014176:Protein Biosynthesis / Q000187:drug effects*; D013768:Tetrahymena / Q000187:drug effects / Q000378:metabolism*
D002701:Chloramphenicol; D003513:Cycloheximide