User:Meng Han Liu/Sandbox 1
From Proteopedia
(Difference between revisions)
Line 1: | Line 1: | ||
==Introduction== | ==Introduction== | ||
- | In prokaryotes such as [http://en.wikipedia.org/wiki/E.coli ''E. coli''] and [http://en.wikipedia.org/wiki/B._subtilis ''B. subtilis''], chromosomal DNA exists in a circular fashion whereby [[DNA Replication, Transcription and Translation#DNA replication|DNA replication]] takes place at a common [http://en.wikipedia.org/wiki/Origin_of_replication#Prokaryotic origin] (''oriC'') <ref>Duggin, I.G. and S.D. Bell, Termination Structures in the Escherichia coli Chromosome Replication Fork Trap. Journal of Molecular Biology, 2009. 387(3): p. 532-539</ref>. Two replication forks move bidirectionally from ''oriC'' to replicate DNA until they meet, and the forks fuse with one another to form two circular daughter chromosomes <ref>Wake, R.G. and G.F. King, A tale of two terminators: crystal structures sharpen the debate on DNA replication fork arrest mechanisms. Structure, 1997. 5: p. 1-5</ref>. | + | In prokaryotes such as [http://en.wikipedia.org/wiki/E.coli ''E. coli''] and [http://en.wikipedia.org/wiki/B._subtilis ''B. subtilis''], chromosomal DNA exists in a circular fashion whereby [[DNA Replication, Transcription and Translation#DNA replication|DNA replication]] takes place at a common [http://en.wikipedia.org/wiki/Origin_of_replication#Prokaryotic origin] (''oriC'') <ref>Duggin, I.G. and S.D. Bell, Termination Structures in the Escherichia coli Chromosome Replication Fork Trap. Journal of Molecular Biology, 2009. 387(3): p. 532-539</ref>. Two [http://en.wikipedia.org/wiki/Replication_fork replication forks] move bidirectionally from ''oriC'' to replicate DNA until they meet, and the forks fuse with one another to form two circular daughter chromosomes <ref>Wake, R.G. and G.F. King, A tale of two terminators: crystal structures sharpen the debate on DNA replication fork arrest mechanisms. Structure, 1997. 5: p. 1-5</ref>. The region where the two replication forks meet is defined as the “terminus region”, located roughly opposite of ''oriC''<ref>Duggin, I.G., Wake, R. Gerry, Bell, Stephen D. Bell and Hill, Thomas M., The replication fork trap and termination of chromosome replication. Molecular Microbiology, 2008. 70(6): p. 1323-1333</ref>. |
Revision as of 14:01, 19 May 2011
Introduction
In prokaryotes such as E. coli and B. subtilis, chromosomal DNA exists in a circular fashion whereby DNA replication takes place at a common origin (oriC) [1]. Two replication forks move bidirectionally from oriC to replicate DNA until they meet, and the forks fuse with one another to form two circular daughter chromosomes [2]. The region where the two replication forks meet is defined as the “terminus region”, located roughly opposite of oriC[3].
|
References
- ↑ Duggin, I.G. and S.D. Bell, Termination Structures in the Escherichia coli Chromosome Replication Fork Trap. Journal of Molecular Biology, 2009. 387(3): p. 532-539
- ↑ Wake, R.G. and G.F. King, A tale of two terminators: crystal structures sharpen the debate on DNA replication fork arrest mechanisms. Structure, 1997. 5: p. 1-5
- ↑ Duggin, I.G., Wake, R. Gerry, Bell, Stephen D. Bell and Hill, Thomas M., The replication fork trap and termination of chromosome replication. Molecular Microbiology, 2008. 70(6): p. 1323-1333