分子生物學(xué)-05真核轉(zhuǎn)錄-資料下載頁
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【正文】 ies confined to the nucleus。 several of the snRNAs are involved in splicing or other RNA processing reactions. (100300 bases and 105106 molecules per cell. In natural state, they exist as ribonucleoprotein particles (snRNP). The spliceosome contains snRNA Spliceosome: proteins and RNAs existed as ribonucleoprotein particles. The snRNPs involved in splicing are U1, U2, U5, U4, and U6. Each snRNP contains a single snRNA and several (20) proteins. The U4 and U6 snRNPs are usually found as a single (U4/U6) particle. The snRNPs together contain ~40 individual proteins. Alternative splicing involves differential use of splice junctions Alternative splicing involves differential use of splice junctions cissplicing and transsplicing reactions Splicing usually occurs only in cis between exons carried on the same physical RNA molecule, but trans splicing can occur when special constructs are made that support base pairing between introns. rRNA splicing tRNA processing Yeast tRNA splicing involves cutting and rejoining rRNA processing 謝謝觀看 /歡迎下載 BY FAITH I MEAN A VISION OF GOOD ONE CHERISHES AND THE ENTHUSIASM THAT PUSHES ONE TO SEEK ITS FULFILLMENT REGARDLESS OF OBSTACLES. BY FAITH I BY FAITH
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