A powerful method for engineering your gene of interest
CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats)/Cas9 ±â¼úÀº À¯ÀüÀÚ ÆíÁýÀ» À§ÇÑ Çõ½Å ±â¼ú·Î »ç¶÷ ¶Ç´Â µ¿ ¡¤ ½Ä¹° ¼¼Æ÷¿¡¼ ƯÁ¤ À¯ÀüÀÚÀÇ DNA¸¦ ÀνÄÇÏ´Â sgRNA (single-guide RNA)¿Í ÇÙ»êºÐÇØÈ¿¼ÒÀÎ Cas9 nuclease¸¦ ÀÌ¿ëÇÑ ±â¼úÀÌ´Ù.
´ÙÄ«¶ó¹ÙÀÌ¿À´Â ¼º°øÀûÀÎ CRISPR/Cas9 Gene EditingÀ» À§ÇÑ ¡°Guide-it¢â ½Ã¸®Á¸¦ Á¦°øÇÏ°í ÀÖ´Ù.
CRISPR/Cas9À» À§ÇÑ ÇÙ½É ÀÎÀÚ
CRISPR/Cas9À» À§ÇÑ ÇÙ½É Áغñ¹°!
¾Æ·¡ÀÇ µÎ °³ ¶Ç´Â ¼¼ °³ÀÇ ÀÎÀÚ¸¦ ¼¼Æ÷ ³»·Î µµÀÔ½ÃÄÑÁÖ¸é Áغñ ¿Ï·á!
¨ç Cas9 nuclease : ¸ñÀû DNA¸¦ Àý´ÜÇÏ´Â È¿¼Ò
¨è sgRNA (single-guide RNA) : ÆíÁýÇÏ°íÀÚ ÇÏ´Â ºÎÀ§ÀÇ DNA¿Í »óº¸ÀûÀ¸·Î °áÇÕÇÏ´Â RNA
¨é HDR Donor Template (HDR Template) : ¸ñÀû À¯ÀüÀÚ »ðÀÔ È¤Àº specific mutationÀ» À§ÇÑ DNA
¨ç + ¨è ¡æ NHEJ Pathway¸¦ ÀÌ¿ëÇÑ À¯ÀüÀÚ ±â´É »èÁ¦
¨ç + ¨è + ¨é ¡æ HDR Pathway¸¦ ÀÌ¿ëÇÑ ¸ñÀû À¯ÀüÀÚ »ðÀÔ È¤Àº specific mutation editing
CRISPR/Cas9 Ç¥ÁØ ÇÁ·ÎÅäÄÝ
½±°í È¿À²ÀûÀÎ CRISPR/Cas9 ½ÇÇè ÇÁ·ÎÅäÄÝ : Clontech Guide-it¢â system
Step 1. sgRNA Á¦ÀÛ
¸ñÀû À¯ÀüÀÚ ¼¿°ú »óº¸ÀûÀ¸·Î °áÇÕÇÏ´Â sgRNA ÇÕ¼º°ú ½ºÅ©¸®´×À» ÅëÇÑ È¿À² °ËÁõ
Step 2-3. CRISPR Gene Delivery
sgRNA¿Í Cas9 ´Ü¹éÁú ¶Ç´Â HDR template¸¦ ´Ù¾çÇÑ ÇüÅ (DNA, RNA, Protein)¿Í ´Ù¾çÇÑ ¹æ¹ý (transfection, electroporation, viral gene delivery,
Gesicle ¿Ü)À¸·Î ¸ñÀû¼¼Æ÷¿¡ µµÀÔ
NHEJ Pathway·Î ÀÎÇØ ¹ß»ýµÈ Indel º¯ÀÌ, ¶Ç´Â HDR·Î »ðÀÔµÈ À¯ÀüÀÚ ¶Ç´Â SNP¸¦ Àü±â¿µµ¿ È®ÀÎ ¶Ç´Â ¼¿ ºÐ¼®
CRISPR À¯ÀüÀÚ µµÀÔ¹æ¹ý
CRISPR ½ÇÇèÀ» À§ÇÑ Cas9, sgRNA À¯ÀüÀÚ (+ HDR template)¸¦ ¼¼Æ÷ ³»·Î µµÀÔ ½Ã, ´Ù¾çÇÑ µµÀÔ¹æ¹ý°ú ÇüŸ¦ »ç¿ëÇÒ ¼ö ÀÖ´Ù.
CRISPR¸¦ ÀÌ¿ëÇÑ À¯ÀüÀÚ ÆíÁý ¹æ¹ýÀÇ ¼±Åà . NHEJ ¶Ç´Â HDR Pathway ¼±ÅÃ
Cas9 nuclease¿¡ ÀÇÇØ Àý´ÜµÈ ¸ñÀûÀ¯ÀüÀÚ´Â ¼¼Æ÷ÀÇ DNA º¹±¸½Ã½ºÅÛ (DNA repair system)¿¡ ÀÇÇØ È¸º¹µÈ´Ù. ´ëÇ¥ÀûÀ¸·Î NHEJ Pathway¿¡ µû¸¥ Indel (Insertion and deletion)
»ý¼ºÀ¸·Î ÀÎÇÑ frame shift Çö»óÀº À¯ÀüÀÚ Knock-out °á°ú¸¦ ¾ß±âÇÑ´Ù. HDR templateÀÇ Á¸Àç ÇÏ¿¡¼´Â HDR Pathway°¡ À¯¹ßµÇ¾î ¿øÇÏ´Â À¯ÀüÀÚ¸¦ »ðÀÔ ¶Ç´Â
º¯ÇüÇÒ ¼ö ÀÖ´Ù.
CRISPR À¯ÀüÀÚ µµÀÔ¹æ¹ýÀÇ ¼±Åà . sgRNA, Cas9 À¯ÀüÀÚ µµÀÔÇüÅÂÀÇ ¼±ÅÃ
µµÀÔÇüÅ |
Active Protein
(RNP* Delivery) |
DNA Plasmid |
mRNA |
Viral
Transduction |
Cas9 nuclease
sgRNA |
Plasmid DNA encoding
Cas9 and sgRNA |
mRNA encoding
Cas9 and sgRNA |
Viral vector encoding
Cas9 and sgRNA |
µµÀÔ¹æ¹ý |
- Electroporation
- Transfection
|
- Transfection
- Electroporation
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Guide-it¢â
ÁÖ¿äÁ¦Ç° |
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* RNP: Ribonucleoprotein Complex