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£¨1£©³ý×ÓÄÒ¾úPodosporaanserina²úÉúµÄÒ»ÖÖÆáøÊÇËľÛÌåÍ⣬ÆäËüÆáøһ°ãÊǵ¥Ò»¶àëÄ£¬ÓÉÔ¼ 500 ¸ö°±»ùËá×é³É¡£ Except that one kind of Lac created by Podosporaanserina is a tretramer, the other Lacs are generally single polypeptide, which is made up of about 500 amino acids. £¨2£©LacÊÇÒ»ÖÖº¬Í¶à·ÓÑõ»¯Ã¸£¬ÄÜ´ß»¯·ÓÀàÎïÖʵÄÑõ»¯»¹Ô·´Ó¦£¬ÔÚľÖÊËØµÄÉúÎï½µ½âÖз¢»Ó×ÅÖØÒªµÄ×÷Óá£ËüÊÇÒ»ÀàÒÔO2Ϊµç×ÓÊÜÌåµÄµ°°×ø£¬¶ÔÆä×÷ÓûúÀí£¬Ä¿Ç°Ñо¿½Ï͸³¹µÄÊÇÆä´ß»¯¶à·Ó»¯ÎÈçÇâõ«µÈ£¬´Ë¹ý³ÌÐë¾¹ýËĴε¥µç×Ó´«µÝ¡£ Lac is a kind of Cu-containing polyphenol oxidase. It can catalyze the redox reaction of phenols, and plays an important role in the biological degradation of lignin. It is a kind of protease whose electron acceptor is O2. As to its mechanism of action, at present what has been fully explored is that it can catalyze polyphenol compound, such as hydroquinone. This process needs four times¡¯ single electron transfer. |
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welzgx: ½ð±Ò+30, ·ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2016-01-18 17:30:45
welzgx: ½ð±Ò+30, ·ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2016-01-18 17:30:45
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±È½ÏÖÐʽµÄÓ¢Óï±í´ï£¬ÓÐЩÓôʲ»×¼È·£º Except that one kind of Lac produced £¨Ò»ÖÖÉúÎï²úÉúµÄø²»ÓÃcreateÕâÖÖ´Ê£©by Podosporaanserina is a tretramer, the other Lacs are generally single polypeptide, consisting of about 500 amino acids. Lac is a kind of Cu-containing polyphenol oxidase. It can catalyze the redox reaction of phenols, and plays an important role in the biological degradation of lignin. It is a kind of protease whose electron acceptor is O2. With regard to its mechanism of action, at present what has been fully explored is that it can catalyze polyphenol compound, such as hydroquinone£¨ÕâÄÜËã×÷ÓûúÖÆÂ𣿽ö½öÊÇ×÷ÓöøÒÑ£©. This process needs a single electron transfer for four times. ¿´À´ÄãºÜϲ»¶ kind of£¬ÆäʵÔÚÄãËùÓõÄËùÓоä×ÓÖУ¬Õâ¸ö´Ê×é¶¼ÊǶàÓàµÄ£¬¿ÉÒÔ²»Òª¡£ ÁíÍ⣬at present what has been fully explored is that it can catalyze polyphenol compound, such as hydroquinoneÕâ¾ä»°±¾ÉíûÓÐÎÊÌ⣬µ«Ì«ÈÆÁË£¬Ö±½ÓÁ˵±Ëµ½áÂ۾ͺÃÁË,ÀýÈ磺With regard to its mechanism of action, it has been well documented that it can catalyze polyphenol compound, such as hydroquinone. ¹©²Î¿¼¡£ |
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