Z-DNA
此條 |
![](https://upload.wikimedia.org/wikipedia/commons/f/f5/Z-DNA_orbit_animated_small.gif)
Z-DNA
歷史
[编辑]Z-DNA
結構
[编辑]![](https://upload.wikimedia.org/wikipedia/commons/thumb/5/57/B-%2C_Z-DNA_junction_2ACJ.png/300px-B-%2C_Z-DNA_junction_2ACJ.png)
Z-DNA
Z-DNA
一 些DNA形式 幾何 形狀 的 對比
[编辑]![](https://upload.wikimedia.org/wikipedia/commons/thumb/b/b1/A-DNA%2C_B-DNA_and_Z-DNA.png/220px-A-DNA%2C_B-DNA_and_Z-DNA.png)
![](https://upload.wikimedia.org/wikipedia/commons/thumb/f/fe/B%26Z%26A_DNA_formula.svg/250px-B%26Z%26A_DNA_formula.svg.png)
A-DNA | B-DNA | Z-DNA | |
---|---|---|---|
1 bp | 1 bp | 2 bp | |
Rotation/bp | 32.7° | 35.9° | 60°/2 |
bp/turn | 10 | 11 | 12 |
Inclination of bp to axis | +19° | −1.2° | −9° |
Rise/bp along axis | 2.3 Å (0.23 nm) | 3.32 Å (0.332 nm) | 3.8 Å (0.38 nm) |
Pitch/turn of helix | 28.2 Å (2.82 nm) | 33.2 Å (3.32 nm) | 45.6 Å (4.56 nm) |
Mean propeller twist | +18° | +16° | 0° |
anti | anti | C: anti, G: syn | |
Sugar pucker | C3'-endo | C2'-endo | C: C2'-endo, G: C3'-endo |
23 Å (2.3 nm) | 20 Å (2.0 nm) | 18 Å (1.8 nm) | |
參 見
[编辑]參考 文獻
[编辑]- ^ Wang AHJ, Quigley GJ, Kolpak FJ, Crawford JL, van Boom JH, Van der Marel G, Rich A. Molecular structure of a left-handed double helical DNA fragment at atomic resolution. Nature (London). 1979, 282: 680–686. PMID 514347
- ^ Ha SC, Lowenhaupt K, Rich A, Kim YG, Kim KK. Crystal structure of a junction between B-DNA and Z-DNA reveals two extruded bases. Nature. 2005, 437: 1183–1186. PMID 16237447.
- ^ Sinden, Richard R. DNA structure and function 1st. Academic Press. 1994-01-15: 398. ISBN 0-126-45750-6.
- ^ Rich A, Norheim A, Wang AHJ. The chemistry and biology of left-handed Z-DNA. Annual Review of Biochemistry. 1984, 53 (1): 791–846. PMID 6383204. doi:10.1146/annurev.bi.53.070184.004043.
- ^ Ho PS. The non-B-DNA structure of d(CA/TG)n does not differ from that of Z-DNA. Proc Natl Acad Sci USA. 1994-09-27, 91 (20): 9549–9553. Bibcode:1994PNAS...91.9549H. PMC 44850
. PMID 7937803. doi:10.1073/pnas.91.20.9549.
延伸 閱讀
[编辑]- Sinden RR (1994). DNA structure and function. Academic Press, 179-216. ISBN 978-0-12-645750-6
- Rich A, Zhang S (2003). Timeline: Z-DNA: the long road to biological function. Nat Rev Genet, 4:566–572.
外部 連結
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