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Abstract

»ç¶÷ÀÇ fibroblast¿Í ÁãÀÇ plasmacytoma ¼¼Æ÷¿¡¼­ Àڿܼ±¿¡ °­ÇÏ°Ô Á¶»çµÈ DNA ¸¸À» ƯÀÌÇÏ°Ô ÀÚ¸£´Â 3°³ÀÇ ´Ù¸¥ endonuclease°¡ ºÐ¸®µÇ¾ú´Ù(UV endonuclease I, II & III). ¶ÇÇÑ ÀÌ È¿¼ÒµéÀº °¢±â apurinic/apyrimidinic(AP) DNA¸¦ Áö¸£´Â AP endonuclease
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ÀÖ´Ù1), ±×Áß »ç¶÷À̳ª ÁãÀÇ UV endonuclease III´Â ´Ü¹éÁú Á¤Á¦°úÁ¤À̳ª, »ýÈ­ÇÐÀûÀΠƯ¡¸é¿¡¼­ ¸Å¿ì À¯»çÇÏ´Ù. ÀÌ µÎ È¿¼ÒµéÀÌ ºÎºÐ Á¤Á¦µÈ ÈÄ xeroderma pigmentosum ¼¼Æ÷¿¡ °üÇÏ¿© ¿¬±¸µÇ¾ú´Ù. Xeroderma pigmentosumÀÌ Àִ ȯÀÚµéÀº Àڿܼ±¿¡ ¸Å¿ì ¹Î°¨ÇÑ
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°¡Áö°í ÀÖÀ¸¸ç, Á¤»óÀÎ º¸´Ù 2,000~5,000¹è ÀÌ»ó ž籤¼±¿¡ ÀÇÇÑ ÇǺξϿ¡ ½±°Ô °É¸®°Ô µÈ´Ù. ÀÌ µÎ È¿¼ÒµéÀº permeablize°¡ µÈ xeroderma pigmentosum(XP) group D ¼¼Æ÷ÀÇ repair DNA synthesis¸¦ ȸº¹½ÃÄÑ ÁÖÁö¸¸ XP A, C, ȤÀº E ¼¼Æ÷¿¡¼­´Â ÀÌ·¯ÇÑ È¿°ú°¡
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UV endonuclease I, II³ªXP-A, C, E factor µéÀº XP-D ¼¼Æ÷¿¡¼­ ¾Æ¹«·± È¿°ú°¡ ¾ø´Ù ±×·¯¹Ç·Î human UV endonucleases III´Â XP-D ¼¼Æ÷¿¡´Â ¾ø´Â °ÍÀ¸·Î ¾Ë·ÁÁø human AP endonuclease IÀ̸ç2), ÀÌ È¿¼Ò´Â XP group D ¼¼Æ÷¿¡ repair DNA synthesis¸¦ ȸº¹½ÃÄÑ ÁÖ´Â
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