6 Some specific proteins bind to the rrna to form RNP complex RNA Subunits Assembled L1 L2 L3 ribosomes △4 △ 12900 bases (120 bases (Total: 31) ● Q O 11540 bases Total: 21) ▲△△ △▲ △ 28s:58s 5S a(4800 bases-160 bases)(120 bases Total: 50) ●⊙0 ●o (1900bass) Total: 33)
6、 Some specific proteins bind to the rRNA to form RNP complex
30S亚基的三维结构 CP L7/ 12 sta L1
30S 亚基的三维结构
三、 rRNa processing in eukaryotes 1, In the nucleolus, RNA polymerase I transcribes the rRNA, which usually exist in tandem repeats containing 100 or more copies of the transcription units 2\ Primary transcript 47S, containing ETS external transcribed sequence TS internal transcribed sequence ETS ITS ITS ETS Pre-18S Pre-58S Pre-28S
二、rRNA processing in eukaryotes 1、In the nucleolus, RNA polymerase I transcribes the rRNA, which usually exist in tandem repeats containing 100 or more copies of the transcription units . 2、 Primary transcript 47S, containing ETS external transcribed sequence ITS internal transcribed sequence ETS ITS ITS ETS Pre-18S Pre-5.8S Pre-28S