Histones: Difference between revisions
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Created page with '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. Histones can be organized in…' |
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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. | 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>. | ||
Histones can be organized into six classes: | Histones can be organized into six classes: | ||
1.H1 | 1.H1 | ||
2.H2A | 2.H2A | ||
3.H2B | 3.H2B | ||
4.H3 | 4.H3 | ||
5.H4 | 5.H4 | ||
6. Archael | 6. Archael | ||
Witout histones, DNA would be too long to fit within the nucleus. | Witout histones, DNA would be too long to fit within the nucleus. | ||
| Line 19: | Line 19: | ||
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>. | ||
=== References === | === References === | ||
<references /> | |||
<references /> | <references /> | ||
Revision as of 14:24, 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