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[»ýÈÇнÇÇè] RNA polymerase ºÐ¸® Á¤Á¦ |
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Å°¿öµå : |
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[»ýÈÇнÇÇè] RNA polymerase ºÐ¸® Á¤Á¦ |
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1. Cell lysis
¨ç pelletÀ» ³ìÀÎ ÈÄ Buffer LB 26ml ºÐÁÖÇÏ¿© ¼¯´Â´Ù. ¨è Àß ¼¯Àº pelletÀ» ice¿¡ ¹ÚÇôÀÖ´Â ºñÄ¿¿¡ º×°í stirringÇÏ¿© 6ml lysozyme¿¡ ºÐÁÖÇÑ ´ÙÀ½, 66ml PMSF¿Í 33ul leupeptinµµ ÷°¡ÇÑ´Ù. (20min ¹ÝÀÀ½Ã°£ ÁØ´Ù.) ¨é 20min ÈÄ, 3ml 0.8% Sodium deoxycloate ÷°¡ÇÏ°í 20min ¹ÝÀÀ ½Ã°£ ÁØ´Ù. ¨ê 20min ÈÄ, 50ul PMSF ÷°¡ÇÏ°í 5.6ml 2M Ammonium Sulfate ÷°¡ÇÑ´Ù. ¨ë Total volume 56ml ±îÁö Buffer LB¸¦ ÷°¡ÇÑ´Ù. ¨ì 5.6ml 10% PEI¸¦ ¾ÆÁÖ ÃµÃµÈ÷ ³Ö¾îÁÖ°í 20 min ¹ÝÀÀ½Ã°£ ÁØ´Ù. ¨í 39.00g 4µµ¿¡¼ 15min ultra centrifugeÇÑ´Ù. ¨î supernatant¸¸ ºñÄ¿¿¡ ´ã°í Àüü volumeÀÇ 0.82¹è(46ml) ammonium sulfate¸¦ õõÈ÷ ÷°¡½ÃÄÑ 15min ¹ÝÀÀ½ÃŲ´Ù. ¨ï 12.00g 4µµ¿¡¼ 15min ultra centrifugeÇÑ´Ù. ¨ð supernatant´Â ¹ö¸®°í 17ml lysis buffer (1XBuffer C + 100mM NaCl) ÷°¡ÇÏ¿© ¿ëÇؽà Ų´Ù. ¨ñ Åõ¼® ½Ã »ç¿ëÇÏ´Â membraneÀ» ¹Ì¸® D.W¿¡ ´ã±Ù´Ù. (3.3ml/1cm) ¨ò protein solutionÀ» membrane¿¡ ³Ö°í clipÀ¸·Î ÀâÀº ÈÄ 4µµ, chamber¿¡¼ O/N
2. Cell Purification ¨ç ´Ü¹éÁúÀ» 4µµ, 12000g¿¡¼ 20ºÐ CentrifugeÇÑ´Ù. ¨è Supernatant¸¸ ºñÄ¿¿¡ ´ã°í 50ul PMSF ÷°¡ÇÑ´Ù. ¨é Colom¿¡ À§ÀÇ solutionÀ» Èê·Áº¸³½´Ù. Èê·Á³ª¿À´Â BufferÀ» ºñÄ¿¿¡ ´ã´Â´Ù. (50ml; loading eluent) ¨ê Washing Buffer 120mlÀ» Èê·Áº¸³½´Ù. (200ml ; Washing eluent) ¨ë Elution Buffer 200mlÀ» |
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À§ Á¤º¸¹× °Ô½Ã¹° ³»¿ëÀÇ Áø½Ç¼º¿¡ ´ëÇÏ¿© º¸ÁõÇÏÁö ¾Æ´ÏÇϸç, ÇØ´ç Á¤º¸ ¹× °Ô½Ã¹° ÀúÀ۱ǰú ±âŸ ¹ýÀû Ã¥ÀÓÀº ÀÚ·á µî·ÏÀÚ¿¡°Ô ÀÖ½À´Ï´Ù. À§ Á¤º¸¹× °Ô½Ã¹° ³»¿ëÀÇ ºÒ¹ýÀû ÀÌ¿ë, ¹«´ÜÀüÀç¹× ¹èÆ÷´Â ±ÝÁöµÇ¾î ÀÖ½À´Ï´Ù. ÀúÀÛ±ÇħÇØ, ¸í¿¹ÈÑ¼Õ µî ºÐÀï¿ä¼Ò ¹ß°ß½Ã ÇÏ´ÜÀÇ ÀúÀÛ±Ç Ä§ÇØ½Å°í¸¦ ÀÌ¿ëÇØ Áֽñ⠹ٶø´Ï´Ù. |
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