- ³ôÀº displacement È°¼º°ú ÁõÆøÈ¿À²
- 30¡É¿¡¼ long fragment DNA ÁÖÇüÀ» Á¤È®ÇÏ°í È¿À²ÀûÀ¸·Î ÁõÆøÇÒ ¼ö ÀÖ´Â È¿¼Ò
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phi29 DNA Polymerase´Â Bacillus subtilis phage phi29ÀÇ DNA polymeraseÀÌ´Ù. º» Á¦Ç°Àº 30¡É ºÎ±Ù¿¡¼ È°¼ºÀ» °¡Áö¸ç, ³ôÀº displacement È°¼ºÀ¸·Î µî¿Â ÁõÆø¿¡ ÀûÇÕÇÏ°í, 3'-5' exonuclease È°¼º¿¡ ÀÇÇØ ³ôÀº Á¤È®µµ¸¦ °¡Áö´Â È¿¼Ò·Î, RCA (Rolling Circle Amplification)¹ýÀ̳ª WGA (Whole Genome Amplification) µî¿¡ »ç¿ëÇÒ ¼ö ÀÖ´Ù.
ÁõÆø ¹ÝÀÀ¿¡´Â phi29 DNA PolymeraseÀÇ 3'-5' exonuclease È°¼º¿¡ ÀÇÇÑ primer degradationÀ» ¹æÁöÇϱâ À§ÇÏ¿© 3' ¸»´ÜÀÌ º¸È£ ¼ö½ÄµÈ 3' Phosphorothioate-modified Random Hexamer(Code 3807)ÀÇ »ç¿ëÀ» ±ÇÀåÇÑ´Ù.
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1. ´Ù¾çÇÑ template DNA¸¦ ³ôÀº °¨µµ·Î ÁõÆø

M: ¥ë Hind III Marker
NTC: ÁÖÇü DNA¸¦ Æ÷ÇÔÇÏÁö ¾Ê´Â ¹ÝÀÀ¾×
¡Ø0.7% agarose gel »ç¿ë, °¢ ¹ÝÀÀ¾×À» 5 §¡¾¿ loading
phi29 DNA Polymerase (Code RR340A)¿Í 3' Phosphorothioate-modified Random Hexamer (Code 3807)¸¦ »ç¿ëÇÏ¿© HL60 gDNA, M13 mp18 Single Strand DNA, pUC19 plasmid DNA¸¦ ÁÖÇüÀ¸·Î ÁõÆø ¹ÝÀÀÀ» ÁøÇàÇÏ¿´´Ù. °¢ DNA ÁÖÇüÀº ¹ÝÀÀ¾×¿¡ °¢°¢ 5 ng, 0.5 ng, 50 pg, 5 pg¾¿ ÷°¡ÇÏ¿´°í, 30¡É¿¡¼ 2½Ã°£ ¹ÝÀÀ ÈÄ Àü±â¿µµ¿ ÇÏ¿´´Ù.
±× °á°ú, HL60 gDNA ¹× M13 mp18 Single Strand DNA¿¡¼´Â ÁÖÇü DNA 5 pg~5 ngÀÇ ¹üÀ§¿¡¼ ÁõÆø °¡´ÉÇÏ°í, pUC19 plasmid DNA´Â 50 pg~5 ngÀÇ ¹üÀ§¿¡¼ ÁõÆø °¡´ÉÇÑ °ÍÀ» È®ÀÎÇÏ¿´´Ù.
2. ¹ÝÀÀ ½Ã°£°ú DNA ¼öÀ²

phi29 DNA Polymerase¿Í 3 'Phosphorothioate-modified Random Hexamer¸¦ »ç¿ëÇÏ¿© pUC19 plasmid DNA¸¦ ÁÖÇüÀ¸·Î ¹ÝÀÀ¾× Áß¿¡ 0.5ng ÷°¡ÇÏ°í, 30¡É¿¡¼ 2, 4, 6, 8, 16½Ã°£ ¹ÝÀÀÇÑ ÈÄ ¹ÝÀÀ ´ç DNA ¼öÀ²À» ÃøÁ¤ÇÏ¿´´Ù.
±× °á°ú(N = 2), 2½Ã°£À̸é ÃæºÐÇÑ ¼öÀ²ÀÌ ÇÕ¼ºµÊÀ» È®ÀÎÇÏ¿´°í, ½Ã°£ÀÌ ³ªÁú¼ö·Ï ÇÕ¼º·®Àº Áõ°¡ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù(4~16½Ã°£).
3. Ÿ»ç Á¦Ç° ´ëºñ ³ôÀº DNA ÁõÆø ¼öÀ²
(A)

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NTC: ÁÖÇü DNA¸¦ Æ÷ÇÔÇÏÁö ¾Ê´Â ¹ÝÀÀ¾×
¡Ø0.7% agarose gel »ç¿ë, °¢ ¹ÝÀÀ¾×À» 5 §¡¾¿ loading
(B)

(A) 2½Ã°£ÀÇ ¹ÝÀÀ ÈÄ, Àü±â¿µµ¿À¸·Î ÁõÆøµÈ DNA¸¦ È®ÀÎÇÑ °á°ú, phi29 DNA Polymerase (´ç»ç)´Â Ÿ»çÀÇ È¿¼Ò¿¡ ºñÇØ ÀûÀº ÁÖÇü·®¿¡¼µµ ³ôÀº DNA ¼öÀ²ÀÌ ¾ò¾îÁö°í, ¹ÝÀÀ¾×¿¡ ÁÖÇüÀ» Æ÷ÇÔÇÏÁö ¾Ê´Â NTCÀÇ ÁõÆøÀº È®ÀεÇÁö ¾Ê¾Ò´Ù. ¹Ý¸é, Ÿ»ç Á¦Ç°Àº ´ëºÎºÐ °¨µµ°¡ ÁÁÁö ¾Ê¾Ò°í, ÀϺΠ°¨µµ°¡ ³ôÀº È¿¼Ò´Â NTC¿¡¼ DNA ÁõÆøÀÌ È®ÀεǾú´Ù.
(B) pUC19 DNA 0.5 ngÀ» ÁÖÇüÀ¸·Î ÇÑ ÁõÆø ¹ÝÀÀ 2½Ã°£ ÈÄ ¹× 4½Ã°£ ÈÄ¿¡, ¹ÝÀÀ¾× 20 §¡´ç DNA ¼öÀ²À» ÃøÁ¤ÇÑ °á°ú, phi29 DNA Polymerase (´ç»ç)´Â ³ôÀº DNA ¼öÀ²À» ¾òÀ» ¼ö ÀÖÀ½À» È®ÀÎÇÏ¿´´Ù.
³»¿ë
phi29 DNA DNA polymerase (10 U/§¡) |
250 U |
10¡¿ phi29 DNA Polymerase Reaction Buffer |
250 §¡ |
dNTP Mixture |
100 §¡ |
º¸Á¸ - 20 ¡É
±â¿ø
Escherichia coli carrying a plasmid containing the gene for phi29 DNA Polymerase
Unit Á¤ÀÇ
30¡É¿¡¼ 10ºÐ µ¿¾È 20 pmolÀÇ dNTP¸¦ »êºÒ¿ë¼º ħÀü¹°¿¡ µµÀÔÇÏ´Â È¿¼Ò·®À» 1U·Î ÇÑ´Ù.
ºÒÈ°¼ºÈ Á¶°Ç 65¡É, 10 min
Application
- RCA (Rolling Circle Amplification)
- WGA (Whole Genome Amplification)
°ü·ÃÁ¦Ç°
- °íÈ¿À² ÇÙ»êµî¿ÂÁõÆø¿ë PCR È¿¼Ò: BcaBEST¢ç DNA Polymerase ver.2.0