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Applications
- ÇüÁúÀüȯÀÌ ¾î·Á¿î cell-type¿¡¼ tetracycline À¯µµ ¹ßÇö
Tet-On¢ç Inducible Expression - The 3rd Generation
Tet-On¢ç 3G Tetracycline Inducible Gene Expression SystemsÀº °¡Àå °·ÂÇÏ°í Àû¿ë¼ºÀÌ ¶Ù¾î³ 3¼¼´ë Æ÷À¯·ù À¯µµ ¹ßÇö ½Ã½ºÅÛÀ¸·Î Á¤¹ÐÇÏ°Ô À¯ÀüÀÚ ¹ßÇöÀ» Á¶ÀýÇÒ ¼ö
ÀÖµµ·Ï ±âÁ¸ Á¦Ç°ÀÇ ¼º´ÉÀ» °³¼±ÇÏ¿´´Ù. º» ½Ã½ºÅÛÀ» ÀÌ¿ëÇϸé Á» ´õ °¡¿ªÀûÀÌ°í Á¤·®ÀûÀ̸ç ÀçÇö¼º ÀÖ°Ô ¸ñÀû À¯ÀüÀÚÀÇ ¹ßÇöÀ» Á¶ÀýÇÒ ¼ö ÀÖ´Ù. Hermann Bujard¿Í
Manfred Gossen, Wolfgang Hillen ¿¬±¸ ±×·ì(1,2)¿¡ ÀÇÇØ °³¹ßµÈ 3G ½Ã½ºÅÛÀº promoter º¯ÇüÀ¸·Î ¹é±×¶ó¿îµå¸¦ ÇöÀúÇÏ°Ô ÁÙÀÌ°í transactivator protein °³¼±À» ÅëÇØ
Dox¿¡ ´ëÇÑ ¹Î°¨µµ¸¦ ÇÑÃþ ³ôÀÎ Çõ½ÅÀûÀÎ Tet ½Ã½ºÅÛÀÌ´Ù.
Tet-On¢ç 3G Inducible SystemÀÇ °³¿ä
Tet-On¢ç 3G transactivator proteinÀ» ¹ßÇöÇÏ¸é¼ TRE3G promoter (PTRE3G)·Î ¸ñÀû À¯ÀüÀÚ¸¦ Á¶ÀýÇÏ´Â Tet-On¢ç 3G ¼¼Æ÷´Â µ¶½Ã»çÀÌŬ¸°(Dox; tetracycline analog)ÀÌ
÷°¡µÇ¾úÀ» ¶§ ¸ñÀû À¯ÀüÀÚ¸¦ °í¹ßÇö ½ÃŲ´Ù. Tet-On¢ç 3G proteinÀº Dox°¡ °áÇÕÇϸé ÇüÅÂÀûÀÎ º¯È°¡ »ý°Ü PTRE3G ³»ÀÇ tet operator (tet O)¿¡ °áÇÕÇÏ°Ô µÈ´Ù (±×¸² 1).
»õ·Î¿î ½Ã½ºÅÛÀº ±âÁ¸ÀÇ ³·Àº ¼öÁØÀÇ TetR-based system (Clontech¿¡¼´Â ÆǸÅÇÏÁö ¾Ê´Â Á¦Ç°)°ú´Â ´Þ¸®, Tet-On¢ç ±â¼úÀ» Àû¿ëÇÏ¿© transcriptionÀ» ÀúÇØÇϱ⠺¸´Ù´Â
ÃËÁø½ÃÅ°´Â °ÍÀ¸·Î ±Øµµ·Î ³·Àº ±âÀú¹ßÇö°ú ³ôÀº ¸ñÀû À¯ÀüÀÚ ¹ßÇöÀÌ °¡´ÉÇÏ´Ù. »Ó¸¸ ¾Æ´Ï¶ó ÇÑÃþ ´õ »¡¶óÁø ¹ÝÀÀ½Ã°£ µîÀÇ ÀåÁ¡À» °®°í ÀÖÀ¸¸ç ƯÈ÷ in vivo ½ÇÇè¿¡ ÃÖÀûÀÌ´Ù.

±×¸² 1. The Tet-On¢ç 3G Systems allow inducible gene expression only in the presence of doxycycline (Dox). When Dox binds, the transactivator undergoes a
conformational change allowing it to bind tet operator (tetO) repeats within the TRE3G Promoter.
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