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¹ÙÀÌ·¯½ºÀÇ Æ¯¼º°ú ±¸Á¶

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TZ-SHR-1120966
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2020.08.07
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16 page / 1.11 MB
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  ¹ÙÀÌ·¯½ºÀÇ Æ¯¼º ¹× ±¸Á¶    ¹ÙÀÌ·¯½º(virus)  virus : venom (µ¶)  »ý¹°°ú ¹«»ý¹°ÀÇ Áß°£Àû Á¸Àç  ºñ¼¼Æ÷¼º ¹Ì»ý¹° (noncellular)  
±¤ÇÐÇö¹Ì°æÀ¸·Î °üÂû ºÒ°¡ (submicroscopic size)
Àý´ë±â»ý¼º (obligate intracellular parasite)  Áõ½Ä¿¡ ¼÷ÁÖ¼¼Æ÷(host cell)¸¦ ÇÊ¿ä·Î ÇÔ  ¼÷ÁÖƯÀ̼º : µ¿¹°¼º ¹ÙÀÌ·¯½º  ½Ä¹°¼º ¹ÙÀÌ·¯½º  ¼¼±Õ¼º ¹ÙÀÌ·¯½º (bacteriophage)  À¯Àü¹°Áú : dsdna, ssdna, ssrna, dsrna Áß 1    virusÀÇ ±âº» ±¸Á¶  core (ÇÙ»ê)  nucleic acid  (dna or rna)  capsid (´Ü¹é¿Ü°¢)  protein coat  capsomer  envelope (ÇǸ·, ¿ÜÇÇ)  non-enveloped virus  (naked virus)   enveloped virus    ³ª¼±Çü (helical virus)  ±¸Çü : Á¤20¸éü (icosahedral virus)  º¹ÇÕÇü  virusÀÇ ÇüÅ    virusÀÇ Å©±â    influenza virus    polio virus  bacterophage lambda    virusÀÇ Áõ½Ä (¿ë±ÕÁÖ±â)  
1.ºÎÂø(attachment)
2.ħÀÔ(penetration)
3.»ýÇÕ¼º(biosynthesis)
4.Á¶¸³.Æ÷Àå(assembly &
packaging)  
5.¹æÃâ(release)
  virusÀÇ Áõ½Ä  Àý´ë±â»ý¼º :   »ì¾ÆÀÖ´Â ¼÷ÁÖ ¼¼Æ÷ ³»¿¡¼­¸¸ °¡´É  ¹ÙÀÌ·¯½º ¹è¾ç¿¡´Â ¼÷ÁÖ ¼¼Æ÷°¡ ²À ÇÊ¿äÇÔ  * ¼¼Æ÷º´º¯È¿°ú (cytopathic effect, cpe)  
¹ÙÀÌ·¯½º¿¡ °¨¿°µÈ ¼÷ÁÖ¼¼Æ÷¿¡ ³ªÅ¸³ª´Â ÇüÅÂ¿Í ±¸Á¶ÀÇ º¯È­
1.ºÎÂø(attachment) ÈíÂø(adsorption)
¼÷ÁÖƯÀ̼º(host specificity) : virus-adsorption site (ÈíÂøºÎÀ§)
host-receptor site (¼ö¿ëü)  
2.ħÀÔ(penetration)
phage : Çٻ길 (ÁÖÀÔ, injection)  
animal & plant virus : capsid ÇÙ»ê (¼¼Æ÷ ³»¿¡¼­ uncoating)
  
3.»ýÇÕ¼º(biosynthesis) : ÇÙ»ê°ú ´Ü¹éÁú
Ãʱ⠴ܹéÁú ÇÕ¼º : È¿¼Ò  ÇÙ»ê ÇÕ¼º  ¸»±â ´Ü¹éÁú ÇÕ¼º : capsomer  * rna virusÀÇ ÇÙ»ê ÇÕ¼º  ÀϺδ rna·ÎºÎÅÍ rna ÇÕ¼º  
ÀϺδ ¸ÕÀú rna·ÎºÎÅÍ dna ÇÕ¼º ÈÄ ¿ªÀü»ç¿¡ ÀÇÇØ rna ÇÕ¼º
¿ªÀü»çÈ¿¼Ò(reverse transcriptase)  cdna (complementary dna)  
4.Á¶¸³.Æ÷Àå(assembly & packaging)
ÀÚ°¡Á¶¸³ (self-assembly)  ¼º¼÷ (maturation)    
5.¹æÃâ(release) :
¹æÃâ·®(burst size)  ¿ë±Õ¹ÝÁ¡(plaque)    ¿ë±Õ¼º »ýȰȯ°ú ¿ë¿ø¼º »ýȰȯ  virus   º´¿ø¼º(virulent) : ¿ë±Õ¼º »ýȰȯ  
ÀáÀ缺(temperate) : ¿ë±Õ¼º »ýȰȯ & ¿ë¿ø¼º »ýȰȯ
¿ë±Õ¼º »ýȰȯ(lytic cycle)   °¨¿°(infection)  ¿ë¿ø¼º »ýȰȯ(lysogeny)   
virusÀÇ À¯Àü¹°ÁúÀÌ ¼÷ÁÖ¼¼Æ÷ ¿°»öüÀÇ ÀϺηΠÁ¸Àç
provirus(prophage)  ¸é¿ª(immunity)  À¯µµ(induction) : ȯ°æº¯È­¿¡ ÀÇÇØ provirus°¡  ¼÷ÁÖ¼¼Æ÷ÀÇ ¿°»öü¿¡¼­ ¶³¾îÁ® ³ª¿È   ¢¡ ¿ë±Õ¼º »ýȰȯ    ÀáÀ缺 ÆľÆÁöÀÇ »ýȰȯ    ÇüÁúº¯È¯(phage conversion)     (ÀÌÇÏ »ý·«)

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