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The enzymatic reactions were carried out at 25¡æ in 20 mM phosphate buffer (pH 6.5) containing 1% (w/v) casein and an enzyme level of 20 units per gram of protein substrate. The reaction mixtures were incubated for various times (0, 10, 20, 30, 60 min, respectively), then stopped by directly mixing with the sample buffer (2¡ã) of electrophoresis. The reaction mixtures were analyzed by SDS¨CPAGE and by measuring the ammonia released (Ngo,Phan, & Yam, 1982). |
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sutao1979
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wildboy(½ð±Ò+7,VIP+0):ллÁË ½ð±Òµ±È»Ó¦¸Ã·îÉÏ 3-9 20:05
lwf991229(½ð±Ò+2,VIP+0):ÐÁ¿à,»¶Ó³£À´~ 3-9 20:49
wildboy(½ð±Ò+7,VIP+0):ллÁË ½ð±Òµ±È»Ó¦¸Ã·îÉÏ 3-9 20:05
lwf991229(½ð±Ò+2,VIP+0):ÐÁ¿à,»¶Ó³£À´~ 3-9 20:49
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øµÄ·´Ó¦Ìõ¼þÊÇ25¶È£¬º¬ÓÐ1%µÄcasein£¨¸ÉÀÒËØ, ÀÒµ°°×£©µÄPH=6.5µÄŨ¶ÈΪ20mMÁ×ËỺ³åÒº£¬Ã¿¿Ëµ°°×µÄµ×ÎïÊÇ20u¡£·´Ó¦Ìåϵ·Ö±ðÓò»Í¬µÄʱ¼ä£¨0, 10, 20, 30, 60 ·ÖÖÓÅàÑø£©£¬È»ºóÖÕÖ¹·´Ó¦£¬ÑùÆ·ÓÃÉÏÑù»º³åÒº£¨2x£©»ìºÏºóµçÓ¾¼ì²â¡£ ·´Ó¦ÌåϵÑùÆ·ÓÃSDS-PAGEºÍ²ÉÓòⶨÈÜÒºÖа±µÄº¬Á¿µÄ·½·¨£¨¶¨µª·¨£¿£¿£¿£©(Ngo,Phan, & Yam, 1982) ½ð±Ò²»ÒªÁË£¬¾ÍÊÇ˵µÄÒ»¸ö·´Ó¦Ìõ¼þ [ Last edited by sutao1979 on 2009-3-9 at 18:44 ] |

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