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Abstract

HPV 18Ll °ú HPV 18L1¥Ä ´Ü¹éÁúÀÇ ¹ßÇöÀ» À§ÇØ baculovirus¹ßÇöü°è¸¦ »ç¿ëÇÏ¿© Ŭ·Î
´× ¹× ¹ßÇö ½ÇÇèÀ» ¼öÇàÇÏ¿´´Ù. HPV 18Ll Àüü ORF¿Í µÎ¹ø° ATG codonÀ» Àü»ç°³½ÃÁ¡À¸
·Î »ç¿ëÇÑ ORF¸¦ PCR·Î ÁõÆøÇÏ¿© AcMNPV À¯·¡ÀÇ polyhedrin promoterÇϺο¡ Ŭ·Î´×½Ã
ÄÑ °ïÃæ¼¼Æ÷ÀÎ Sf-21¿¡ transfection½ÃÄÑ ÀçÁ¶ÇÕ ¹ÙÀÌ·¯½º¸¦ ºÐ¸®ÇÏ°í À̵éÀ» SF-21°ïÃæ¼¼
Æ÷¿¡ ´Ù½Ã °¨¿°½ÃÄ×´Ù. °ïÃæ¼¼Æ÷¿¡¼­ »ý»êµÈ ´Ü¹éÁúµéÀ» SDS-PAGE·Î ºÐ¼®ÇÏ¿´À» ¶§´Â ¶Ñ
·ÇÇÑ ÀçÁ¶ÇմܹéÁú ¹êµå¸¦ È®ÀÎÇÒ ¼ö ¾ø¾úÀ¸³ª HPV 16Ll monoclonal antibody¸¦ »ç¿ëÇÑ
Western blot ºÐ¼®¿¡¼­´Â ¸íÈ®È÷ È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù. HPV 18Ll °ú HPV18L1¥Ä ´Ü¹éÁú °£ÀÇ
¹ßÇö¾çÀÇ Â÷ÀÌ´Â ¾ø¾úÀ¸¸ç, ¹ßÇöµÈ ÀçÁ¶ÇմܹéÁúÀº HPVÇüÀÌ ´Ù¸¥ HPV 6b Ll polyclonal
antibody¿¡ ´ëÇÑ ±³Â÷ ¹ÝÀÀ¼ºÀº ¾ø¾ú´Ù. 40% sucrose cushion °ú 27% CsCl ±¸¹è¸¦ ÀÌ¿ëÇÑ
ÃÊ¿ø½ÉºÐ¸®·Î ¹ÙÀÌ·¯½º À¯»çÀÔÀÚ(VLP) Çü ¼º´ÉÀ» °ËÁ¤ÇÏ°íÀÚ ÇÏ¿´À¸¸ç ºÐ¸®ÇÑ ºÐȹÀ» ÀüÀÚ
Çö¹Ì°æÀ¸·Î °üÂûÇÑ °á°ú ¼öÀ²ÀÌ ³ôÁö´Â ¾ÊÁö¸¸ 18Çü Ll ¸¸À¸·Î ÀÌ·ç¾îÁø VLP°¡ »ý¼ºµÇ¾úÀ½
À» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù.
#ÃÊ·Ï#
The Ll capsid proteins of Human Papillomavirus type 18(HPV 18) were expressed in
Sf-21 insect cells via a baculovirus vector. The DNA fragment coding Ll full length
open reading frame(Ll ORF) or one deleted in amino terminal segment to the second
methionine(Ll ¥Ä ORF) was cloned into pBacPAKl transfer vector, respectively.
Recombinant viruses were isolated for both Ll and Ll ¥Ä. From insect cells infected with
either of these two recombinant viruses, recombinant proteins were produced and
confirmed by 10% SDS-PAGE followed by Westem blotting. The apparent molecular
weight of Ll polypeptide and Ll ¥Ä polypeptide was approximately 63kd and 57Kd,
respectively. These proteins were detected by HPV 16Ll monoclonal antibody but not by
HPV 6b Ll antibody. This result indicates that the major capsid protein of HPV 18Ll is
antigenically similar to HPV 16Ll but different to the HPV 6b Ll. Recombinant Ll major
capsid protein was shown to be assembled into viruslike particles(VLPs) by purifying on
sucrose and CsCl gradient ultracentrifugation, and by confirming VLP structure using
electron microscopy. This demonstrates that Ll protein alone is sufficient for viruslike
particle assembly.

Å°¿öµå

Human Papillomavirus type18; Ll capsid protein; VLP; insect cell.;

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