Formylation Is Not Essential for Initiation of Protein Synthesis in All Eubacteria
نویسندگان
چکیده
منابع مشابه
Initiation of protein synthesis in Saccharomyces cerevisiae mitochondria without formylation of the initiator tRNA.
Protein synthesis in eukaryotic organelles such as mitochondria and chloroplasts is widely believed to require a formylated initiator methionyl tRNA (fMet-tRNA(fMet)) for initiation. Here we show that initiation of protein synthesis in yeast mitochondria can occur without formylation of the initiator methionyl-tRNA (Met-tRNA(fMet)). The formylation reaction is catalyzed by methionyl-tRNA formyl...
متن کاملDependence of Mitochondrial Protein Synthesis Initiation on Formylation of the Initiator Methionyl-tRNA,
The effect of N’“-formyl-H,folate on mitochondrial peptide chain initiation has been studied in isolated mitochondria of Saccharomyces cerevisiae. The addition of N”‘-formyl-H,folate strongly stimulates the incorporation of amino acids into mitochondrial protein at both 6 and 15 mu Mg2+. Still higher stimulation (up to IO-fold) has been obtained in the production of de nouo synthesized initial ...
متن کاملnano-rods zno as an efficient catalyst for the synthesis of chromene phosphonates, direct amidation and formylation of amines
چکیده ندارد.
The mere lack of rT modification in initiator tRNA does not facilitate formylation-independent initiation in Escherichia coli.
Formylation of initiator methionyl-tRNA is essential for normal growth of eubacteria. However, under special conditions, it has been possible to initiate protein synthesis with unformylated initiator tRNA even in eubacteria. Earlier studies suggested that the lack of ribothymidine (rT) modification in initiator tRNA may facilitate initiation in the absence of formylation. In this report we show...
متن کاملDependence of mitochondrial protein synthesis initiation on formylation of the initiator methionyl-tRNAf.
The effect of N10-formyl-H4folate on mitochondrial peptide chain initiation has been studied in isolated mitochondria of Saccharomyces cerevisiae. The addition of N10-formyl-H4-folate strongly stimulates the incorporation of amino acids into mitochondrial protein at both 6 and 15 mm Mg2+. Still higher stimulation (up to 10-fold) has been obtained in the production of de novo synthesized initial...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1999
ISSN: 0021-9258
DOI: 10.1074/jbc.274.32.22143