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¿¹¾úëÄ£¨Antimicrobial peptides£©ÊÇÒ»Àà¾ßÓп¹¾ú»îÐԵĶÌëÄ£¬·Ö×ÓÁ¿ÔÚ1000-7000×óÓÒ£¬ÓÉ12-50¸ö°±»ùËá×é³É£¬¾ßÓйâÆ×¿¹¾úÐÔ£¬¿ÉɱËÀ¸ïÀ¼ÊÏÑôÐÔ¾ú¡¢¸ïÀ¼ÊÏÒõÐÔ¾ú¡¢Õæ¾úµÈ¡£¿¹¾úëÄORBKÊÇÀ´Ô´ÓÚÎÞÖ¸Å̳ôÍÞOdorrcma grahamiƤ·ô·ÖÃÚÎïµÄº¬16¸ö°±»ùËá²Ð»ùµÄÑôÀë×Ó¶àëÄ¡£¸Ã¶àëÄÊÇÒ»Àà»·ÐÎëÄ£¬²»½ö¾ßÓп¹¾ú»îÐÔ£¬»¹¾ßÓÐÎȶ¨µÄ´ÙÒȵºËØÊÍ·Å»îÐÔ¡£Ä¿Ç°»ñµÃ¿¹¾úëÄORBKµÄ·½·¨Ö»ÓÐÌáÈ¡ºÍºÏ³É£¬´ÓÎÞÖ¸Å̳ôÍÞÆ¤·ô·ÖÃÚÎïÖÐÌáÈ¡´æÔÚÌáÈ¡Á¿ÉÙµÄÆ¿¾±£¬¶ø»¯Ñ§ºÏ³É·¨³É±¾½Ï¸ß£¬ÒòΪ¸Ã¶àëĺϳÉÖл¹ÐèÒªÒ»¸ö»·»¯µÄ¹ý³Ì¡£ÔÚ±¾ÂÛÎÄÖУ¬ÎÒÃÇÀûÓûùÒò¹¤³Ì½áºÏH2O2Ñõ»¯µÄ·½·¨£¬³É¹¦»ñµÃÁË¿¹¾úëÄORBK£¬²¢¶Ô¸Ã¿¹¾úëĵÄ×÷ÓûúÖÆ½øÐÐÁË̽¾¿£¬Í¬Ê±£¬ÎÒÃÇ»¹¶Ô¿¹½áºÏ¸Ë¾ú¶àëÄD29P63ºÍPK34½øÐÐÁ˳õ²½Ñо¿¡£

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liyan20220: ½ð±Ò+5, ·­ÒëEPI+1 2014-01-14 18:17:56
Antimicrobial peptides  are antimicrobial  peptides  with  molecular weight of about 1000-7000 and consists  of 12-50 amino acids whose  antibacterial spectrum include  Gram-positive bacteria, Gram-negative bacteria and fungi. ORBK antimicrobial peptides are cationic peptides derived from  Odorrcma grahami skin secretions containing 16 amino acid residues. A  cyclic peptide, ORBK antimicrobial peptides have not only  antimicrobial activity , but also a stable insulinotropic activity. Currently  ORBK antimicrobial peptide can only  be extracted  and synthesized .  The much smaller yields of Odorrcma grahami skin secretions extraction is a critical technical bottleneck  and  the cost of chemical synthesis  is  high  because it  requires a cyclic process . In this paper, we use a genetic engineering   combined H2O2 oxidation method, successfully obtained  ORBK antimicrobial peptides .The   mechanism of antimicrobial peptides has been explored  and  bacteria binding peptides D29P63 and PK34 were studied  also .
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