\n
\u57fa\u56e0\u958b\u982d\u7684\u4e00\u500b\u5340\u57df\uff08\u7a31\u70ba\u555f\u52d5\u5b50\u3014promoter\u3015<\/small>\uff09\u2014\u2014\u4e00\u6bb5\u7279\u5b9a\u7684\u6838\u82f7\u9178\u5e8f\u5217\u2014\u2014\u89f8\u767c\u8f49\u9304\u3014transcription\u3015<\/small>\u7684\u958b\u59cb\u3002<\/p>\n<\/div><\/div>\n\n\n\nSTEP<\/span><\/div>\u7b2c\u4e8c\u968e\u6bb5\uff1a\u4f38\u9577<\/div>
\n
\u7576 RNA \u805a\u5408\u9176\u89e3\u958b DNA \u7247\u6bb5\u6642\uff0c\u8f49\u9304\u958b\u59cb\u3002 \u5176\u4e2d\u4e00\u80a1\u7a31\u70ba\u7de8\u78bc\u80a1\u3014coding strand\u3015<\/small>\uff0c\u6210\u70ba\u5177\u6709\u5f85\u7de8\u78bc\u57fa\u56e0\u7684\u6a21\u677f\u3002 \u7136\u5f8c\uff0c\u805a\u5408\u9176\u5c07\u6b63\u78ba\u7684\u6838\u9178\uff08A\u3001C\u3001G \u6216 U\uff09\u8207\u5176 DNA \u7de8\u78bc\u80a1\u4e0a\u7684\u4e92\u88dc\u9e7c\u57fa\u9032\u884c\u5c0d\u9f4a\u3002 RNA \u805a\u5408\u9176\u662f\u4e00\u7a2e\u5411\u4e0d\u65b7\u589e\u9577\u7684 RNA \u80a1\u6dfb\u52a0\u65b0\u6838\u82f7\u9178\u7684\u9176\u3002 \u9019\u500b\u904e\u7a0b\u69cb\u5efa\u4e86\u4e00\u689d mRNA \u80a1\u3002<\/p>\n<\/div><\/div>\n\n\n\nSTEP<\/span><\/div>\u7b2c\u4e09\u968e\u6bb5\uff1a\u7d42\u6b62<\/div>
\n
\u5728\u57fa\u56e0\u672b\u7aef\uff0c\u4e00\u6bb5\u7a31\u70ba\u7d42\u6b62\u5b50\u5e8f\u5217\u3014terminator sequence\u3015<\/small>\u7684\u6838\u82f7\u9178\u5e8f\u5217\u6703\u5c0e\u81f4\u65b0\u7684 RNA \u81ea\u884c\u6298\u758a\u3002 \u9019\u7a2e\u6298\u758a\u5c0e\u81f4 RNA \u8207\u57fa\u56e0\u548c RNA \u805a\u5408\u9176\u5206\u96e2\uff0c\u5f9e\u800c\u7d50\u675f\u8f49\u9304\u3002<\/p>\n<\/div><\/div>\n<\/div>\n\n\n\n<\/div>\n\n\n\n
\u5728 mRNA \u5206\u5b50\u96e2\u958b\u7d30\u80de\u6838\u4e26\u9032\u884c\u86cb\u767d\u8cea\u5408\u6210\u4e4b\u524d\uff0c\u5b83\u6703\u4ee5\u591a\u7a2e\u65b9\u5f0f\u9032\u884c\u4fee\u98fe\u3002 \u56e0\u6b64\uff0c\u6b64\u968e\u6bb5\u901a\u5e38\u88ab\u7a31\u70ba\u524d mRNA\u3014pre-mRNA\u3015<\/small><\/span>\u3002 \u4f8b\u5982\uff0c\u4f60\u7684 DNA \u4ee5\u53ca\u4e92\u88dc\u7684 mRNA \u5305\u542b\u7a31\u70ba\u975e\u7de8\u78bc\u5340\u3014non-coding regions\u3015<\/small>\u7684\u9577\u5340\u57df\uff0c\u9019\u4e9b\u5340\u57df\u4e0d\u7de8\u78bc\u6c28\u57fa\u9178\u3002 \u5b83\u5011\u7684\u529f\u80fd\u4ecd\u7136\u662f\u500b\u8b0e\uff0c\u4f46\u7a31\u70ba\u526a\u63a5<\/strong>\u3014splicing\u3015<\/small>\u7684\u904e\u7a0b\u5f9e\u524d mRNA \u8f49\u9304\u7269\u4e2d\u53bb\u9664\u4e86\u9019\u4e9b\u975e\u7de8\u78bc\u5340\u57df\uff08\u5716 3.27\uff09\u3002 \u526a\u63a5\u9ad4<\/strong>\u3014spliceosome\u3015<\/small>\u2014\u2014\u4e00\u7a2e\u7531\u5404\u7a2e\u86cb\u767d\u8cea\u548c\u5176\u4ed6\u5206\u5b50\u7d44\u6210\u7684\u7d50\u69cb\u2014\u2014\u9644\u8457\u5728 mRNA \u4e0a\u4e26\u201c\u526a\u63a5\u3014splices\u3015<\/small>\u201d\u6216\u5207\u9664\u975e\u7de8\u78bc\u5340\u3002 \u8f49\u9304\u7269\u3014transcript\u3015<\/small>\u4e2d\u88ab\u79fb\u9664\u7684\u7247\u6bb5\u7a31\u70ba\u5167\u542b\u5b50<\/strong>\u3014intron\u3015<\/small>\u3002 \u5269\u9918\u7684\u5916\u986f\u5b50<\/strong>\u3014exons\u3015<\/small>\u7c98\u8cbc\u5728\u4e00\u8d77\u3002<\/span> \u5916\u986f\u5b50\u662f\u526a\u63a5\u5f8c\u4fdd\u7559\u7684 RNA \u7247\u6bb5\u3002 \u6709\u8da3\u7684\u662f\uff0c\u4e00\u4e9b\u5f9e mRNA \u4e2d\u53bb\u9664\u7684\u5167\u542b\u5b50\u4e26\u4e0d\u7e3d\u662f\u975e\u7de8\u78bc\u7684\u3002 \u7576mRNA\u7684\u4e0d\u540c\u7de8\u78bc\u5340\u88ab\u526a\u63a5\u6642\uff0c\u6700\u7d42\u6703\u7522\u751f\u4e0d\u540c\u7684\u86cb\u767d\u8cea\u8b8a\u7570\uff0c\u5176\u7d50\u69cb\u548c\u529f\u80fd\u4e5f\u6709\u6240\u4e0d\u540c\u3002 \u9019\u500b\u904e\u7a0b\u7522\u751f\u4e86\u66f4\u591a\u7a2e\u985e\u7684\u53ef\u80fd\u86cb\u767d\u8cea\u548c\u86cb\u767d\u8cea\u529f\u80fd\u3002 \u7576 mRNA \u8f49\u9304\u7269\u6e96\u5099\u597d\u6642\uff0c\u5b83\u5c31\u6703\u96e2\u958b\u7d30\u80de\u6838\u4e26\u9032\u5165\u7d30\u80de\u8cea\u3002<\/p>\n\n\n\n<\/div>\n\n\n\n