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       FPP synthase À¶ÇմܹéÁú ±¸ÃàÀ» ÅëÇÑ ´ëÀå±Õ¿¡¼­ÀÇ Z,E-°è¿­ÀÇ ¼¼½ºÄû-ÅÍÆä³ëÀÌµå °í»ý»ê ±â¼ú °³¹ß
               
       ISBC        2018.08.21 14:45        2504
 

FPP synthase À¶ÇմܹéÁú ±¸ÃàÀ» ÅëÇÑ ´ëÀå±Õ¿¡¼­ÀÇ

Z,E-°è¿­ÀÇ ¼¼½ºÄû-ÅÍÆä³ëÀÌµå °í»ý»ê ±â¼ú °³¹ß

°æ»ó´ëÇб³ ±è¼±¿ø ±³¼ö


EngineeredheterologousFPPsynthases-mediated Z,E-FPP synthesisin E. coli / Metabolic Engineering. 2013 July, 18:53-59.


1. ¿¬±¸¹è°æ


À̼ÒÇÁ·¹³ëÀ̵å´Â MEP °æ·Î ¶Ç´Â MVA °æ·Î·ÎºÎÅÍ »ý¼ºµÈ IPP ¹× DMAPP·ÎºÎÅÍ ÇÕ¼ºµÈ´Ù(1, 2). À̼ÒÇÁ·¹³ëÀ̵åÀÇ ½ÅÀåÀº IPP¿Í DMAPPÀÇ head-to-tail ÃàÇÕÀ¸·Î ½ÃÀÛµÇ¸ç ¿©±â¿¡ °è¼Ó IPP°¡ ºÙ¾î³ª°¡¸é¼­ ¸ð³ë-ÅÍÆä³ëÀ̵å, ½Ã½ºÄû-ÅÍÆä³ëÀ̵å, ´ÙÀÌ-ÅÍÆä³ëÀÌµå µîÀÌ »ý¼ºµÈ´Ù(3). À̼ÒÇÁ·¹³ëÀ̵åÀÇ »ç½½ ½ÅÀåÀº »õ·Î Çü¼ºµÈ ÀÌÁß°áÇÕ¿¡ ´ëÇÏ¿© µÎ °¡Áö ¹æ½Ä, E ¹× Z·Î ÁøÇàµÉ ¼ö ÀÖ´Ù. µû¶ó¼­ ÀÔüƯÀÌÀû ¹ÝÀÀ (stereospecific reaction)Àº 4 °¡Áö ±¸Á¶ÀÇ E,E-, E,Z-, Z,E- and Z,Z-FPP¸¦ »ý¼ºÇÑ´Ù(4). »ó±âÀÇ ÀÔüȭÇйÝÀÀ¿¡´Â °¢°¢ E-FPP synthase ¹× Z-FPP synthase°¡ °ü¿©ÇÑ´Ù. ´ëÀå±ÕÀÇ IspAÀ» Æ÷ÇÔÇÑ ´ëºÎºÐÀÇ FPP synthase´Â ¸ðµÎ E-ÀÌÁß°áÇÕ Çü¼º È¿¼Ò·Î¼­, 1 DMAPP¿Í 2 IPPÀÇ E-ÃàÇÕÀ» Ã˸ÅÇÏ¿© E,E-FPP¸¦ Çü¼ºÇÏ´Ù. E,E-FPP´Â »ý¸íü¿¡¼­ ÄÝ·¹½ºÅ×·Ñ, Æij׽ÇÈ­ ´Ü¹éÁú, À¯ºñÄû³í ¹× µ¹¸®ÄÝ°ú °°Àº Çʼö ¼¼Æ÷¼ººÐÀÇ »ýÇÕ¼º¿¡ ÀÌ¿ëµÈ´Ù(5, 6, 7, 8). ¼¼½ºÄûÅÍÆä³ëÀ̵å´Â FPP·ÎºÎÅÍ À¯·¡µÇ´Â õ¿¬È­ÇÕ¹°ÀÇ Å« Æйи®ÀÌ´Ù. Áö±Ý±îÁö ¹ß°ßµÈ ¼¼½ºÄûÅÍÆä³ëÀÌµå »ýÇÕ¼º°ú ¿¬°üµÈ ´ëºÎºÐÀÇ FPP synthase´Â E ŸÀÔÀÌ´Ù. µû¶ó¼­, E,E-FPP°¡ ¼¼½ºÄûÅÍÆæ ½ÅŸÁ¦ÀÇ ±âÁúÀÎ °ÍÀ¸·Î ´ç¿¬È÷ ¿©°ÜÁ³À¸³ª, E,E-FPP°¡ ½ÇÁ¦·Î °¡Àå ¼±È£ÇÏ´Â ±âÁúÀÎÁö´Â ÀÔÁõµÇÁö ¾Ê¾Ò´Ù(9). »ç½Ç, ¸éÈ­ Á¶È¿¼Ò ÃßÃâ¹°Àº E,E-ÀÔüÀ̼ºÁúüÀÇ Ã˸ÅÈ­¿¡ ºñÇÏ¿© ´õ ³ôÀº È¿À²·Î Z,E- ¶Ç´Â Z,Z-FPP¸¦ ¥ä-Ä«µð³ÙÀ¸·Î Àüȯ½ÃŲ´Ù(10). ¶ÇÇÑ Å丶Åä À¯·¡ÀÇ ¼¼½ºÄûÅÍÆæÀÎ endo-bergamoteneÀÇ °í¸®È­´Â ÀÔüȭÇÐÀû Á¦ÇÑÀ¸·Î ÀÎÇÏ¿© E,E-FPP º¸´Ù´Â Z,E-FPP¸¦ ´õ ¼±È£ÇÏ´Â °ÍÀ¸·Î º¸°íµÇ¾ú´Ù(11). »ó±âÇÑ »ç½ÇµéÀ» °í·ÁÇϸé, ¼¼½ºÄûÅÍÆä³ëÀÌµå »ý»êÀ» À§ÇÏ¿© Z-ŸÀÔ FPP¸¦ È¿À²ÀûÀ¸·Î »ý»êÇÏ´Â È¿¼Ò¸¦ ¸¸µå´Â °ÍÀÌ Áß¿äÇÏ´Ù. ±×·¯³ª Z-FPP synthase´Â ÇöÀç±îÁö Ŭ·Î´× µÈ º¸°í°¡ ¾ø°í, Mycobacterium tuberculosisÀÇ Z,E-FPP synthase (Rv1086)°¡ GPP¿Í IPPÀÇ Z-ÃàÇÕÀ» Ã˸ÅÇÏ´Â È¿¼Ò·Î À¯ÀÏÇÏ°Ô º¸°íµÇ¾ú´Ù(12). ¸ó ¿¬±¸¿¡¼­´Â ´ëÀå±ÕÀÇ IspA¿Í Rv1086À» À¶ÇÕÇؼ­ IPP¿Í DMAPP·ÎºÎÅÍ Z,E-FPP¸¦ ¸¸µå´Â ½Å±Ô À¶ÇÕÈ¿¼Ò¸¦ Á¦ÀÛÇÏ°í ´ëÀå±Õ¿¡ µµÀÔÇؼ­ Z,E-¼¼½ºÄûÅÍÆæ ¾ËÄÚ¿ÃÀÎ Z,E-farnesol (FOH) °í»ý»ê¿¡ ¼º°øÇÏ¿´´Ù(±×¸² 1).



±×¸² 1. DMAPP¿Í IPP·ÎºÎÅÍ E,E- ¶Ç´Â Z,E-FPPÀÇ ÇÕ¼º ¹× ¼¼½ºÄûÅÍÆæ ¾ËÄÚ¿ÃÀÎ farnesol »ýÇÕ¼º °æ·Îµµ


2. ¿¬±¸°á°ú


IPP/DMAPP »ýÇÕ¼º °æ·Î°¡ °­È­µÈ ÀçÁ¶ÇÕ ´ëÀå±Õ SN¿¡ IspA¸¸À» ÁõÆøÇÑ ±ÕÁÖ SN-I´Â E,E-FOH¸¸À» ¸¸µé°í, Rv1086¸¸À» ÁõÆøÇÑ ±ÕÁÖ SN-Rv´Â E,E-FOH¿Í Z,E-FOH¸¦ µ¿½Ã¿¡ ¸¸µéÁö¸¸ IspAÀÇ ºÎÁ·À¸·Î ÃÑ FOH »ý»ê·®ÀÌ °¨¼ÒÇÏ°í, IspA¿Í Rv1086À» °°ÀÌ ÁõÆøÇÑ ±ÕÁÖ SN-IRv´Â ÃÑ FOH »ý»ê·®ÀÇ °¨¼Ò ¾øÀÌ E,E-FOH¿Í Z,E-FOH¸¦ ¸¸µéÁö¸¸ Rv1086ÀÇ GPP ±âÁú Á¢±Ù¼ºÀÌ ¶³¾îÁö±â ¶§¹®¿¡ Z,E-FOHÀÇ ºñÀ²ÀÌ Å©°Ô °¨¼ÒÇÏ°í, IspA¿Í Rv1086À» À¶ÇÕÇÑ È¿¼Ò ILRv¸¦ ÁõÆøÇÑ °æ¿ì¿¡´Â ÃÑ FOH »ý»ê·® ¹× Z,E-FOHÀÇ ºñÀ²µµ Å©°Ô Áõ°¡¸¦ ÇÏ¿´´Ù(±×¸² 2). ÀÌ°ÍÀº IspA¿Í Rv1086ÀÌ ºÐ¸®µÇ¾î ÀÖ´Â °æ¿ì¿¡ IspA°¡ ¸¸µå´Â °øÅë Áß°£±âÁúÀÎ GPP¿¡ ´ëÇÑ Á¢±Ù¼ºÀÌ Rv1086ÀÌ IspA¿¡ ºñÇؼ­ ÇöÀúÈ÷ ¶³¾îÁöÁö¸¸ À¶ÇմܹéÁúÀÎ ILRvÀÇ °æ¿ì¿¡´Â °Å¸®¿¡ ´ëÇÑ ºÒ¸®ÇÔÀÌ ¾øÀÌ °øÁ¤ÇÑ GPP ±âÁú°æÀï¿¡¼­ Rv1086ÀÌ IspA ºñÇؼ­ ¿ì¼±ÀûÀ¸·Î GPP¸¦ ÀÌ¿ëÇÑ´Ù´Â °ÍÀÌ´Ù. GPP ±îÁö¸¸ ¸¸µå´Â IspA µ¹¿¬º¯ÀÌ È¿¼ÒÀÎ IspAS80F°¡ À¶ÇÕµÈ È¿¼ÒÀÎ IS80FLRv¸¦ ÁõÆøÇÑ °æ¿ì¿¡´Â Z,E-FOHÀÇ ºñÀ² Áõ°¡ ¾øÀÌ ÃÑ FOH »ý»ê·®¸¸ÀÌ °¨¼Ò¸¦ Çߴµ¥ ÀÌ°ÍÀº µ¹¿¬º¯ÀÌ È¿¼ÒÀÎ IspAS80FÀÇ GPP »ýÇÕ¼º È¿À²ÀÌ °¨¼ÒÇ߱⠶§¹®À¸·Î ÃßÁ¤µÈ´Ù. Rv1086 È¿¼ÒÀÇ È°¼ºÇÙ½É ºÎÀ§ÀÇ µ¹¿¬º¯ÀÌ·Î ºÒÈ­¼ºÈ­ µÈ Rv1086V107GÀÌ À¶ÇÕµÈ È¿¼ÒÀÎ ILRvV107G¸¦ ÁõÆøÇÑ °æ¿ì¿¡´Â Z,E-FOHrk »ý¼ºµÇÁö ¾Ê¾Ò°í ÃÑ FOH »ý»ê·®Àº º¯È­°¡ ¾ø¾ú´Ù.




±×¸² 2. M. tuberculosisÀÇ Rv1086¸¦ ¹ßÇöÇÏ´Â ÀçÁ¶ÇÕ ´ëÀå±Õ¿¡¼­ÀÇ Z,E-FOH »ý»ê¼º º¯È­ ºÐ¼® (A) ÀçÁ¶ÇÕ ´ëÀå±Õ¿¡¼­ ÃßÃâµÈ FOHÀÇ GC Å©·Î¸¶Åä±×·¥. ÇÇÅ© 1°ú 2´Â °¢°¢ Z,E-FOH¿Í E,E-FOH¸¦ ³ªÅ¸³¿. (B) ÀçÁ¶ÇÕ ´ëÀå±Õ ¹è¾ç¿¡¼­ ¾ò¾îÁö´Â ÃÑ FOH »ý»ê·®(°ËÁ¤ ¸·´ë)°ú Z,E-FOH »ý»êºñÀ²(Èò»ö ¸·´ë).


3. ¿¬±¸ÀÇ ¼º°ú ¹× ÀÇÀÇ


º» ¿¬±¸´Â GPP¸¦ ±âÁú·Î ÇÏ´Â Z,E-FPP synthaseÀÎ M. tuberculosisÀÇ Rv1086°ú ´ëÀå±ÕÀÇ E,E-FPP synthase (IspA)¸¦ À¶ÇÕÇؼ­ IPP/DMAPP·ÎºÎÅÍ Z,E-FPP¸¦ ÇÕ¼ºÇÒ ¼ö ÀÖ´Â ½Å±Ô Z,E-FPP synthase À¶ÇÕÈ¿¼Ò ±¸Ãà¿¡ °üÇÑ °ÍÀÌ´Ù(±×¸² 3). ÀÚ¿¬°è¿¡´Â Rv1086°ú °°ÀÌ »ç¿ëÇÒ ¼ö ÀÖ´Â È¿À²ÀûÀÎ GPP synthase°¡ ¾ø´Ù. ´ëÀå±ÕÀÇ IspA¸¦ GPP synthase·Î µ¹¿¬º¯ÀÌ ½ÃŲ °æ¿ì¿¡µµ µ¹¿¬º¯ÀÌ È¿¼ÒÀÎ IspAS80FÀÇ GPP »ýÇÕ¼º È¿À²ÀÌ Å©°Ô °¨¼ÒÇؼ­ ÁÁÀº ´ë¾ÈÀÌ µÉ ¼ö°¡ ¾ø¾ú´Ù. ±×·¯³ª º» ¿¬±¸¿¡¼­´Â IspA¿Í Rv1086ÀÇ È¿°úÀûÀÎ À¶ÇÕ¸¸À¸·Îµµ ¿ì¼öÇÑ ¼º´ÉÀÇ ½Å±Ô Z,E-FPP synthase È¿¼Ò¸¦ Á¦ÀÛÇÒ ¼ö ÀÖ¾ú´Ù. ÀÌ°ÍÀº IspA·ÎºÎÅÍ ¸¸µé¾îÁö´Â GPP ÀÌ¿ë¿¡ ´ëÇÑ Rv1086ÀÇ °Å¸®ÀÇ ºÒ¸®ÇÔÀ» À¶ÇÕÀ» ÅëÇؼ­ Á¦°ÅÇ߱⠶§¹®ÀÌ´Ù. Z,E-FPP´Â ´ëÀå±Õ¿¡¼­ ºñ´ë»ç¼º ´ë»ç»ê¹°(non-metabolizable metabolite)À̱⠶§¹®¿¡ ¼¼Æ÷³»¿¡¼­ ÇÕ¼ºµÈ Z,E-FPP´Â ¸ðµÎ ¸ñÀûÇÏ´Â ¼¼½ºÄûÅ×Ææ »ýÇÕ¼º¿¡ »ç¿ëµÉ ¼ö À־ Z,E-FPP synthase À¶ÇÕÈ¿¼Ò°¡ µµÀÔµÈ ÀçÁ¶ÇÕ ´ëÀå±Õ¿¡¼­´Â ¼¼½ºÄûÅÍÆä³ëÀ̵åÀÇ °í»ý»êÀ» ±â´ëÇÒ ¼ö ÀÖ´Ù.



±×¸² 3. ´ëÀå±ÕÀÇ IspA¿Í M. tuberculosisÀÇ Rv1086ÀÇ ¼¼Æ÷³»¿¡¼­ÀÇ °ø°£Àû À§Ä¡¿Í ±×¿¡  µû¸¥ »ý»ê¹°ÀÇ º¯È­¿¡ ´ëÇÑ ¸ð½Äµµ


Âü°í¹®Çå

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