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Çѱ¹½Ä¹°ÇÐȸ / v.36, no.4, 1993³â, pp.407-413
ÇØ³àÄá Ķ·¯½º¿¡¼­ pH º¯È­¿¡ µû¸¥ ArginaseÀÇ È°¼º
( Arginase Activity in Response to pH Change in Canavalia Lineata Callus )
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ÇØ³àÄá(Canavalia lineata L. DC) ÀÙ¿¡¼­ À¯µµÇÑ Ä¶·¯½º¸¦ pH 8ÀÎ ¿ÏÃæ¿ë¾×¿¡ ÇÑ ½Ã°£ µ¿¾È ó¸®Çϸé pH 6¿¡¼­ º¸´Ù arginaseÀÇ È°¼ºÀÌ ¾à µÎ ¹è·Î Áõ°¡Çß´Ù. Ķ·¯½º¿¡¼­ ¾òÀº arginaseÀÇ Á¶È¿¼Ò¾×À» Sephacryl S-200 Ä÷³¿¡¼­ ºÐȹÇÏ¸é ºÐÀÚ·®ÀÌ °¢°¢ 380 kD°ú 179 kDÀ¸·Î ³ªÅ¸³µ´Âµ¥ ºÐÀÚ·®ÀÌ Å« arginaseÀÇ ºÐȹÀº pH 8 󸮱¸¿¡¼­ °¢°¢ »ó´ëÀûÀ¸·Î ¸¹ÀÌ ³ªÅ¸³µ´Ù. ±×¸®°í pH 6¿¡ 0.5 mM Mn2+¸¦ ÷°¡ÇÏ¿´À» ¶§µµ 380 kD arginaseÀÇ ºÐȹÀÌ Å©°Ô ³ªÅ¸³µÀ¸¸ç, pH 6 󸮿¡¼­ ¾òÀº 179 kD arginase ºÐȹ¿¡ pH 8 󸮸¦ Çϸé 380 kD ºÐȹÀ¸·Î ½±°Ô ÀüÀÌµÉ ¼ö ÀÖ¾ú´Ù. pH 6 ó¸® ÈÄ ÃßÃâÇÑ arginase´Â Mn2+ÀÇ Ã·°¡·Î Ȱ¼ºÀÌ Å©°Ô Áõ°¡ÇÏ¿© pH 8 ó¸® ÈÄ ÃßÃâÇÑ arginase¿Í ºñ½ÁÇÑ È°¼ºÀ» º¸À̳ª, pH 8 ó¸® ÈÄ ÃßÃâÇÑ arginase´Â Mn2+ÀÇ Ã·°¡·Î ´õ ÀÌ»óÀÇ È°¼ºÁõ°¡¸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù. Mn2+ÀÌ ¾ø´Â Á¶°Ç¿¡¼­ µÎ arginaseÀÇ Km°ª°ú Vmax¸¦ Á¶»çÇÑ °á°ú, 380 kD arginase´Â 22 mM°ú 1.61 $mu$mole urea.min-1.mg-1 protein, ±×¸®°í 179 kD arginase´Â 30 mM°ú 0.79 $mu$mole urea.min-1.mg-1 proteinÀ¸·Î ÃøÁ¤µÇ¾ú´Ù.
 
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Journal of Plant Biology / v.36, no.4, 1993³â, pp.407-413
Çѱ¹½Ä¹°ÇÐȸ
ISSN : 1226-9239
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199311920116812)
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