aaacceptarm位于“L”的一端，契合于核糖体的肽基转移酶结合位点P+A，以利肽键的形成位于”L”另一端与结合在核糖体anti-codon arm小亚基上的codonofmRNA配对Amirseocidst“L”结构域的功能Paa'-tRNAaaTVCAkoSonrAaeosncn
----TY C loop & DHU loopibl位于“L”两臂的交界处PCUOAminoacidarms'end利于“L”结构的稳定口-“L"结构中碱基堆积力大3erd使其拓扑结构趋于稳定IOwobblebase口位于“L”结构末端堆积力小自由度大34th使碱基配对摇摆
-“L”结构中碱基堆积力大 使其拓扑结构趋于稳定 wobble base 位于“L”结构末端 堆积力小 自由度大 使碱基配对摇摆 - TΨ C loop & DHU loop 位于“L”两臂的交界处， 利于“L”结构的稳定 34th
5.2.2rRNArDNA aredifferent in severalways from other nuclear genehaveGCcontentof6o%&Richmethylationmiddlerepetitiveeachcell containsfrom severalhundredto over 20,oo0 copies of rDNA gene
• have GC content of 60% & Rich methylation • middle repetitive each cell contains from several hundred to over 20,000 copies of rDNA gene rDNA are different in several ways from other nuclear gene 5.2.2 rRNA
Prokaryote23s,16s,5s/Eukaryote 28s-5.8s,18s,5s(m?U,m3A,mU,m,°A(二甲基)...)Richmethylation19/2900235Ses14/1540O70/48005gvobave+ibebae)605Caabban46/19001Be4051337Ltoota)
● Prokaryote 23s, 16s, 5s / Eukaryote 28s-5.8s, 18s, 5s ● Rich methylation (m2U, m3A, m3U, m2 6A(二甲基).) 19/2900 14/1540 70/4800 46/1900
5sRNA与TCloop部分同源，配对In Prok3'-end of 16s rRNA rich CCU conservative seq.complementarywith5'leading seq.of mRNAShine-Dilgarno seq. of richAGGJC人CUG产
● 5s RNA 与 TΨ C loop 部分同源，配对 ● In Prok. 3’-end of 16s rRNA rich CCU conservative seq. complementary with 5’ leading seq. of mRNA Shine-Dilgarno seq. of rich AGG