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[·¹Æ÷Æ®] viroid¿Í prionÀÇ Â÷ÀÌÁ¡, phageÀÇ life cyc
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viroid : ¾Ë·ÁÁ® ÀÖ´Â ¾î¶² ¹ÙÀÌ·¯½ºº¸´Ùµµ ÀÛÀº °¨¿°¼º ÀÔÀÚ.

prion : µ¿¹°°ú Àΰ£¿¡°Ô Ä¡¸íÀûÀÎ ½Å°æÅðÇ༺ ÁúȯÀÎ Çظé»ó³úÁúȯÀ» ÀÏÀ¸Å°´Â º´¿øü.

defective virus : ¹ÙÀÌ·¯½º¸¦ ³ôÀº ¿ª°¡ÀÇ ÈíÂø ¹ÙÀÌ·¯½º·Î ¼¼Æ÷¿¡ °¨¿°½ÃÅ°´Â °ÍÀ» µÇÇ®ÀÌÇÏ¸é ¹ÙÀÌ·¯½º °Ô³ðÀÇ ÀϺΰ¡ °á¼ÕµÈ °áÇÔ¹ÙÀÌ·¯½º ÀÔÀÚ°¡ ´Ù¼ö ¸¸µé¾îÁ® ¹ÙÀÌ·¯½º´Â ¿ÏÀü º¹Á¦°¡ ¾ÈµÇ´øÁö ¶Ç´Â ´Ü¹é¿ÜÇǸ¦ Çü¼ºÇÒ ¼ö ¾ø´Â ¹ÙÀÌ·¯½º°¡ µÇÁö¸¸ ±× °á¼Õ À¯ÀüÀÚÀÇ ±â´ÉÀ» ´Ù¸¥ ¹ÙÀÌ·¯½º¿¡ ÀÇÇØ º¸Ãæ ¹ÞÀ¸¸é º¹Á¦ÇÒ ¼ö ÀÖ´Â °æ¿ìµµ ÀÖÀ½. °á¼Õ¹ÙÀÌ·¯½º. °á½Ç¹ÙÀÌ·¯½º.

Pseudovirion : ƯÁ¤ÇÑ Æ¯Â¡À» Áö´Ñ DNA¿Í RNA¸¦ Æ÷ÇÔÇÑ À¯ÀüÀû ¹°ÁúµéÀ» ¹ÚÅ׸®¾Æ¿Í ÁøÇÙ¼¼Æ÷µé¿¡ ÁÖÀÔ½ÃÅ°´Â ÀÎÁ¶Àû ¹ÙÀÌ·¯½º¸¦ À̸£´Â ¸»ÀÌ´Ù. ÀÌ°ÍÀº ¹ÙÀÌ·¯½ºµéÀÇ ±¸Á¶¿Í Çൿ¿¡ ¹ÐÁ¢ÇÑ °ü·ÃÀÌ ÀÖÁö¸¸ ÁøÂ¥ ¹ÙÀÌ·¯½ºµéÀÌ °®Àº ¹Ýº¹ÇÏ´Â ´É·ÂÀ» Æ÷ÇÔÇÑ ¸¹Àº Ư¡ÀÌ °á¿©µÇ¾îÀÖ´Ù.

phageÀÇ life cycle

Bacteriophage´Â bacteria¿¡ ±â»ýÇÏ´Â virus·Î½á ÀÚ½ÅÀÇ DNA¸¦ host cell¿¡ Àü´ÞÇÏ¿© transformationÀ» ÀÏÀ¸Å°°Ô ÇÑ´Ù. Cell·Î½áÀÇ ±â´É ¹× ÇüŸ¦ °®Ãß°í ÀÖÁö ¾ÊÀ¸¸ç protein coat¿Í DNA·Î ±¸¼ºµÇ¾î ÀÖ´Ù. Phage´Â host cell¿¡ ħÀÔÇÏ¿© lytic(¿ë±Õ¼º) cycle°ú lysogenic(¿ë¿ø¼º) cycleÀ» °ÅÄ¡¸ç ÀÚ½ÅÀÇ Áõ½Ä ¹× ¹ø½ÄÀ» ÇÑ´Ù.ÀÌ ¶§ °ÅÄ¡´Â °úÁ¤¿¡¼­ lysogenic conversion(¿ë¿øÈ­ º¯È¯)ÀÌ ÀϾ´Ù. Lytic cycle¿¡¼­ phage´Â ÀÚ½ÅÀÇ DNA·Î ºÎÅÍ mRNA¸¦ Çü¼ºÇÏ¿© proteinÀ» ¹ßÇöÇÑ´Ù. À̶§, ÀÚ½ÅÀÇ protein coat¿Í host cellÀÇ cell wallÀ» ¾àÇÏ°Ô ÇÏ´Â enzyme, ±×¸®°í ÀÚ½ÅÀÇ genomic DNAÀÇ replication ¹× phage Á¶¸³¿¡ ÇÊ¿äÇÑ enzyme µîÀ» ¸¸µç´Ù. Lysogenic cycle¿¡¼­´Â host cell¿¡ ħÀÔÇÏ¿© prophage ÇüÅ·Πhost DNA¿Í ÇÔ²² replicationµÇ¸ç

 
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