Histones: Difference between revisions
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In order for DNA to be packaged tightly enough to fit into a chromosome, it wraps around proteins called Histones, located in the nucleus of a cell<ref>http://en.citizendium.org/wiki/Histone</ref>. | In order for [[DNA|DNA ]]to be packaged tightly enough to fit into a [[Chromosome|chromosome]], it wraps around [[Proteins|proteins ]]called Histones, located in the nucleus of a [[Cell|cell]]<ref>http://en.citizendium.org/wiki/Histone</ref>. | ||
Histones can be organized into six classes: | Histones can be organized into six classes: | ||
| Line 15: | Line 15: | ||
6. Archael | 6. Archael | ||
Witout histones, DNA would be too long to fit within the nucleus. | Witout histones, [[DNA|DNA ]]would be too long to fit within the nucleus. | ||
Some other functions of histones include acetlyation, methylation, ubiquitination, and phosphorylation<ref>http://www.iscid.org/encyclopedia/Histones</ref>. | Some other functions of histones include acetlyation, methylation, ubiquitination, and phosphorylation<ref>http://www.iscid.org/encyclopedia/Histones</ref>. | ||
Revision as of 14:28, 22 November 2010
In order for DNA to be packaged tightly enough to fit into a chromosome, it wraps around proteins called Histones, located in the nucleus of a cell[1].
Histones can be organized into six classes:
1.H1
2.H2A
3.H2B
4.H3
5.H4
6. Archael
Witout histones, DNA would be too long to fit within the nucleus.
Some other functions of histones include acetlyation, methylation, ubiquitination, and phosphorylation[2].
References