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Article
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2003-01-12 23:21:07 | Hit : 4429 | Vote : 1134
Subject
¥ë phage DNA molecule
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# Gene organization in the ¥ë DNA molecule
* head-and-tail phage
* 49 kb in size
* ¥ë genetic mapÀÇ Æ¯Â¡Àº genome¿¡¼ °¡´É¿¡ ¿¬°üµÈ gene³¢¸® ÇÔ²² clusterµÇ¾î ÀÖ´Ù´Â °ÍÀÌ´Ù.
--> relating geneÀÇ clusteringÀº individually º¸´Ù groupÀ¸·Î¼ geneÀÇ switch on/off¿¡ ÀÇÇØ ¥ë genomeÀÇ expressionÀÇ control¿¡ Áß¿äÇÏ´Ù.
# The linear and circular forms of ¥ë DNA
* ¥ë phageÀÇ DNA moleculeÀº linearÀÌ´Ù.
* phage head structure¿¡¼ ³ªÅ¸³ª´Â µÎ°³ÀÇ free end¸¦ °¡Áø DNAÀÌ´Ù.
* linear moleculeÀº base-pairingÀ» ÀÌ·ç´Â double stranded DNAÀÎ µÎ°³ÀÇ complementary strand·Î ±¸¼º
* moleculeÀÇ ³¡Àº 12°³ÀÇ nucleotide stretchÀÎ single strandÀÌ´Ù. µÎ°³ÀÇ single strand´Â complementaryÇÏ¿© base pairingÀÌ °¡´ÉÇÏ¿© circular formÀ» ÀÌ·ï ¿Ïº®ÇÑ double strand moleculeÀ» ÀÌ·é´Ù.
* sticky end (=cohesive end)
±×µé »çÀÌÀÇ base pairingÀÌ DNA moleculeÀÇ µÎ ³¡ÀÌ ÇÔ²² ºÙÀ» ¼ö ÀÖ¾î¼ complementary single strandÀ̶ó ĪÇÑ´Ù.
* cos site (¥ë cohesive end)
- bacterial genome¿¡ insertion Çϱâ À§ÇÑ Çʼö prerequisite linear DNA molecule --> cell ¾ÈÀ¸·Î µé¾î°¡¼ circularised µÈ´Ù.
- prophage ÈÄ¿¡ host genome¿¡¼ À߸° ÈÄ, ¸¹Àº »õ·Î¿î ¥ë DNA moleculeÀÌ rolling circle mechanism of replication¿¡ ÀÇÇØ »ý»êµÈ´Ù. --> continuous DNA strand°¡ template molecule¿¡¼ rolled off µÈ´Ù.
- cos site·Î join µÈ linear ¥ë genomeÀÇ series·Î ±¸¼ºµÈ catenaneÀÌ ³ª¿Â´Ù.
- individual ¥ë genome(gene A)¿¡ ÀÇÇØ »ý»êµÈ endonuclease¿¡ ÀÇÇØ ÀÌ cos site°¡ recognition sequence·Î ÀÛ¿ëÇÑ´Ù.
- endonuclease´Â single-stranded sticky end¸¦ ¸¸µé¸ç, phage head structure¿¡ °¢ ¥ë genomeÀ» package Çϱâ À§ÇØ ´Ù¸¥ protein°ú conjugationÇÏ¿© ÀÛ¿ë
¡Å ¥ë genomeÀÇ internal regionÀÇ changing the structure´Â ¥ë genomeÀÇ Àüü ±æÀÌ°¡ ³Ê¹« ¸¹ÀÌ ¹Ù²îÁö ¾ÊÀ¸¸é ÀÌ»óÀÌ ¾ø´Ù.
No
Category
Subject
Date
Hit
16991
ºÐÀÚ»ý¹°ÇÐ
Mutation
[85]
2003/02/16
10901
16990
ºÐÀÚ»ý¹°ÇÐ
Lysosome
[81]
2003/02/16
5583
16989
µ¿¹°»ý¸®ÇÐ
homeostasis
[87]
2003/02/16
11051
16988
ºÐÀÚ»ý¹°ÇÐ
Viruses¶õ ?
[87]
2003/02/16
8724
16987
ºÐÀÚ»ý¹°ÇÐ
DNA(RNA)°¡ À¯Àü¹°ÁúÀ̶ó´Â Áõ°Å
[84]
2003/02/16
11959
16986
ºÐÀÚ»ý¹°ÇÐ
À¯Àü¹°Áú ¹ß°ßÀÇ ¿ª»ç
[92]
2003/02/16
6559
16985
ºÐÀÚ»ý¹°ÇÐ
Çö󽺹̵å DNAÀÇ Áغñ
[957]
2003/02/15
10959
16984
ºÐÀÚ»ý¹°ÇÐ
»ì¾ÆÀÖ´Â ¼¼Æ÷¿¡¼ Àüü ¼¼Æ÷ DNA¸¦ Á¤Á¦ÇÏ´Â ±âº»¿ø¸®
[209]
2003/02/11
22747
16983
ºÐÀÚ»ý¹°ÇÐ
Çʶó¸àÆ®Çü M13 ÆäÀÌÁö ±âº»¼³¸í
[98]
2003/02/11
4131
16982
ºÐÀÚ»ý¹°ÇÐ
¶÷´ÙÆäÀÌÁö(¥ë phage) DNA molecule
[77]
2003/02/11
3939
16981
ºÐÀÚ»ý¹°ÇÐ
¿ëÇؼº ÆäÀÌÁö(Lysogenic phages)
[86]
2003/02/11
4877
16980
ºÐÀÚ»ý¹°ÇÐ
¹ÚÅ׸®¿ÀÆäÀÌÁö(Bacteriophage) - lytic cycle ±âº»¿ø¸®
[81]
2003/02/11
3703
16979
ºÐÀÚ»ý¹°ÇÐ
GENE Ŭ·Î´×À» À§ÇÑ ¿î¹Ýü ¼³¸í- Çö󽺹̵å¿Í ¹ÚÅ׸®¿ÀÆäÀÌÁö
[81]
2003/02/11
5390
16978
À¯Àü°øÇÐ
Manipulation fo purified DNA(Á¤Á¦µÈ DNAÀÇ Á¶ÀÛ)
[20]
2003/01/15
5492
16977
À¯Àü°øÇÐ
Preparation of bacteriophage DNA
[4423]
2003/01/14
5900
16976
À¯Àü°øÇÐ
Preparation of plasmid DNA
[31]
2003/01/13
12759
16975
À¯Àü°øÇÐ
Purification of total cell DNA from living cells
[634]
2003/01/13
19760
16974
À¯Àü°øÇÐ
M13 - a filamentous phage
[31]
2003/01/12
3992
À¯Àü°øÇÐ
¥ë phage DNA molecule
[37]
2003/01/12
4429
16972
À¯Àü°øÇÐ
Lysogenic phages
[39]
2003/01/12
6605
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[2]
[3]
[4]
[5]
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[7]
[8]
[9]
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