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Çѱ¹½Ä¹°ÇÐȸ / v.35, no.2, 1992³â, pp.155-163
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Agrobacterium tumefaciens pTiA6 Çö󽺹̵åÀÇ virE ÇÁ·Î¸ðÅͳ» Á¶ÀýºÎÀ§ÀÇ ±¸Á¶Àû Ư¼º
( Structural Characterization of the Regulatory Site in virE Promoter of Agrobacterium tumefaciens pTiA6 Plasmid ) |
| À½Áø¼º; ¸ñ¿ø´ëÇб³ ¹Ì»ý¹°Çаú;
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| ½Ä¹°¼¼Æ÷¿¡ tumor¸¦ À¯¹ßÇÏ´Â Agrobacterium tumefaciens pTiA6 plasmid¿¡¼ virE À¯ÀüÀÚÀÇ ¹ßÇöÁ¶Àý±âÀÛÀ» ºÐÀÚÀû¼öÁØ¿¡¼ ±Ô¸íÇϱâ À§ÇÏ¿© virE promoterÀÇ 5£§-¸»´ÜÀ» Á¦°ÅÇÏ¿© ¾òÀº truncated virE ÀçÁ¶ÇÕÇö󽺹̵带 ÀÌ¿ëÇÏ¿© virE promoterÀÇ Á¶ÀýºÎÀ§¿¡ ´ëÇÏ¿© ¿¬±¸ÇÏ¿´´Ù. virE promoterÀÇ ±â´ÉÀÌ Á¸ÀçÇÏ´Â truncated virE ÀçÁ¶ÇÕÇö󽺹̵åÀÎ pJS201Àº Àü±â¿µµ¿¿¡ ÀÇÇÏ¿© virE promoterÀÇ 5£§-¸»´ÜÀ¸·ÎºÎÅÍ ¾à 130°³ÀÇ ¿°±â°¡ Á¦°ÅµÈ °ÍÀ¸·Î ÃøÁ¤µÇ¾ú´Ù. ÇÑÆí virE promoterÀÇ ±â´ÉÀ» »ó½ÇÇÑ pJS301¿¡¼ dideoxy chain termination¹æ¹ýÀ¸·Î truncated virE promoter ¿°±â¼¿À» °áÁ¤ÇÑ °á°ú 263°³ÀÇ ¿°±â°¡ Á¦°ÅµÈ °ÍÀ¸·Î È®ÀεǾú´Ù. µû¶ó¼ virE promoterÀÇ Á¶ÀýºÎÀ§´Â virE promoterÀÇ 5£§-¸»´ÜÀ¸·ÎºÎÅÍ ¾à 130¹øÂ°ÀÇ ¿°±â¿¡¼ 263¹øÂ°ÀÇ ¿°±â»çÀÌ¿¡ Á¸ÀçÇÏ´Â °ÍÀ¸·Î »ç·áµÇ¸ç, ÀÌ »çÀÌ¿¡ 23°³ÀÇ ¿°±â·Î ÀÌ·ç¾îÁø ¿ª¹Ýº¹¼¿(AACTTTGCGCTATAGGCAAAGTT)ÀÌ Á¸ÀçÇϰí Àִµ¥, ÀÌ ºÎÀ§°¡ virE operonÀÇ ¹ßÇö¿¡ ÀÖ¾î¼ RNA polymeraseÀÇ ÃÖÃÊ ÀνĺÎÀ§(recognition site)ÀÏ °ÍÀ¸·Î »ç·áµÈ´Ù. |
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| To elucidate the regulatory mechanism of virE operon in Agrobacterium tumefaciens pTiA6 plasmid at the molecular level, the regulatory site of virE promoter was determined using truncated virE recombinant plasmids obtained by 5' deletion analysis of virE promoter. The size of deleted nucleotides of p]S201, a functional recombinant plasmid, was found to be about 130 nucleotides from 5'-end of virE promoter. On the other hand the size of deleted nucleotides of p]S301, nonfunctional recombinant plasmid, was identified 263 nucleotides by DNA sequencing. Hence it was thought that the essential site of virE promoter was located between about 130th nucleotide and 263th nucleotide. Since the inverted repeat sequence (AACTTTGCGCTATAGGCAMGTT) is included in this essential site of virE promoter, it could be the first recognition site of the RNA polymerase in virE promoter.omoter. |
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Journal of Plant Biology / v.35, no.2, 1992³â, pp.155-163
Çѱ¹½Ä¹°ÇÐȸ
ISSN : 1226-9239
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199211920116027)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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