Chloroplast EF-Tu is Coded in Spinach Chloroplast DNA
Chloroplasts contain elongation factors for protein synthesis different from the corresponding factors involved in cytoplasmic and mitochondrial protein synthesis1. Previously, we have demonstrated that chloroplast elongation factor G is synthesized in the organelle in Chlorella vulgaris 2 and that this factor, as well as elongation factor Tu (EF-Tuchl), are synthesized in spinach chloroplasts3. In addition, preliminary results were presented suggesting that the two elongation factors are coded in spinach chloroplast DNA4. We present now a more rigorous evidence that EF-Tuchl is coded in the organellar DNA.
KeywordsElongation Factor Spinach Chloroplast Euglena Gracilis Mitochondrial Protein Synthesis Rigorous Evidence
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