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Ergosterol Regulates Sterol Regulatory Element Binding Protein (SREBP) Cleavage

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CEFP °ü¸®ÀÚ (mewin007@snu.ac.kr)

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2011-07-07 15:45:08

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Porter JR, Burg JS, Espenshade PJ, Iglesias PA. (2010) Ergosterol Regulates Sterol Regulatory Element Binding Protein (SREBP) Cleavage in Fission Yeast. J Biol Chem. 285:41051-41061.


: ºÐ¿­È¿¸ð¿¡¼­ »ç¶÷ÀÇ sterol regulatory element binding protein (SREBP)°ú ÀÌ¿Í °áÇÕÇÏ´Â ScapÀÇ orthologµéÀÎ ER ¸·°áÇÕ ´Ü¹éÁú Sre1°ú Scp1´Â »ê¼Ò °ø±ÞÀÇ °£Á¢Àû ÃøÁ¤ÀÇ µµ±¸·Î ½ºÅ×·Ñ ÇÕ¼ºÀ» ¸ð´ÏÅ͸µ ÇÑ´Ù°í ¾Ë·ÁÁö°í ÀÖ´Ù. ¼¼Æ÷ ³» »ê¼Ò ³óµµ°¡ ³·À¸¸é ½ºÅ×·Ñ ÇÕ¼ºÀÌ ¾ïÁ¦µÇ°í Sre1-Scp1 º¹ÇÕü´Â Àú»ê¼Ò Á¶°Ç¿¡ ÀûÀÀÇϱâ À§ÇÑ À¯ÀüÀÚµéÀÇ Àü»ç¸¦ Áõ°¡½ÃŰ°Ô µÈ´Ù. Sre1°ú Scp1Àº ½ºÅ×·Ñ ÇÕ¼º °úÁ¤ ÁßÀÇ Æ¯Á¤ÇÑ ½ºÅ×·ÑÀÇ ³óµµ ¼öÁØÀ» ¸ð´ÏÅÍÇÏ¿© ½ºÅ×·Ñ ÇÕ¼ºÀ» ¾ïÁ¦ÇÑ´Ù°í ¹Ï¾îÁö°í ÀÖ¾úÀ¸³ª ÀÌ·¯ÇÑ Æ¯Á¤ ½ºÅ×·Ñ ½ÅÈ£¿¡ ´ëÇÑ ¸íÈ®ÇÑ Áõ°Å´Â ¾ò¾îÁöÁö ¸øÇÏ¿´´Ù. º» ³í¹®Àº Sre1-Scp1 º¹ÇÕü°¡ ½ºÅ×·Ñ ÇÕ¼º°úÁ¤ÀÇ ÃÖÁ¾»ê¹°ÀÎ ergosterolÀ» ÀÎÁöÇÔÀ» óÀ½À¸·Î Á¦½ÃÇϰí ÀÖ´Ù. Áï ÀúÀÚµéÀº ¸·°áÇÕ Àü»çÀÎÀÚÀÎ Sre1ÀÇ proteolysis¿¡ ÀÇÇÑ È°¼ºÈ­¿Í ergosterol ³óµµ¿ÍÀÇ ¾çÀûÀÎ °ü·Ã¼ºÀ» ¸íÈ®È÷ Á¦½ÃÇϰí ÀÖ´Ù. ¶ÇÇÑ Sre1-Scp1 º¹ÇÕü°¡ Ȱ¼ºÈ­¿Í ºñȰ¼ºÈ­ »óÅ¿¡¼­ ¸ðµÎ Á¸ÀçÇϸç ÀÌ·¯ÇÑ »óÅ ÀüÀÌ´Â ergosterol¿¡ ÀÇÇÏ¿© ¸Å°³µÊÀ» Á¦½ÃÇϰí ÀÖ´Ù.

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