第七章 RNA Processing In both prokaryotes and eukaryotes, primary RNA transcripts undergo various alteration or processing events to become mature rNAs: The three commonest types are: 1, nucleotide removal by nucleases 2, nucleotide addition to the 5-or 3-end, 3. nucleotide modification on the base or the sugar
第七章 RNA Processing In both prokaryotes and eukaryotes, primary RNA transcripts undergo various alteration or processing events to become mature RNAs: The three commonest types are: 1, nucleotide removal by nucleases; 2, nucleotide addition to the 5’- or 3’-end, 3, nucleotide modification on the base or the sugar
第一节 rRNa processing and ribosomes rrNa processing in prokaryotes 1 Seven different operons for rrNA dispersed thought out the genome. 2\ The primary transcript is 30S (6000nt 3 Each contains one copy of 5s, 16s and 23S rRNA, together with some tRNA sequence. 4 Rnase il is involved in rrna processing
第一节 rRNA processing and ribosomes 一、rRNA processing in prokaryotes 1、 Seven different operons for rRNA dispersed thought out the genome. 2、The primary transcript is 30S (~6000nt). 3、 Each contains one copy of 5S,16S and 23S rRNA, together with some tRNA sequence. 4、 Rnase III is involved in rRNA processing
30s transcript fizEp4l gif
30S transcript
Primary rrNa processing in prokaryotes Pre-16S rRNA Pre-t RNa Pre-23S rRNA Pre-tRNA Pre-5SrRNA Primary transcript RNase Precursors MaturerrNa
Primary rRNA processing in prokaryotes Pre-16S rRNA Pre-t RNA Pre-23S rRNA Pre-tRNA Pre-5S rRNA Precursors Mature rRNA Primary transcript RNase
5, The rRNa folds up into stem-loop structures by base pairing in the transcript 6 Srrna的二级结构 5 end 3 major doma 3 end 5 domain 3 minor domain m
16S rRNA的二级结构 5、The rRNA folds up into stem-loop structures by base pairing in the transcript