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| Title: | | THE STRUCTURE OF AN OLIGO(DA).OLIGO(DT) TRACT AND ITS BIOLOGICAL IMPLICATIONS | |
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| Molecular Description: | 5'-D(CpGpCpApApApApApApGpCpG)-3' |
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| Structural Features: | B DOUBLE HELIX |
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| Nucleic Acid Sequence: |
| | | |
| Chain | A: | |
(DC) (DG) (DC) (DA) (DA) (DA) (DA) (DA) (DA) (DG) (DC) (DG)
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| Chain | B: | |
(DC) (DG) (DC) (DT) (DT) (DT) (DT) (DT) (DT) (DG) (DC) (DG)
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| Primary Citation: | Nelson, H.C., Finch, J.T., Luisi, B.F., Klug, A.
The structure of an oligo(dA).oligo(dT) tract and its biological implications.
Nature
, 330,
pp. 221 - 226, 1987.
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| Experimental Information: | X-RAY DIFFRACTION |
|
| Space Group: |
P
21
21
21
|
|
| Cell Constants: |
| a = 25.400 | b = 40.700 | c = 65.800 | (Ångstroms) |
 = 90.00 |  = 90.00 |  = 90.00 | (degrees) |
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| Crystallization Conditions: |
| Method: | | VAPOR DIFFUSION |
| Drop: | | WATER, MPD, Mg ACETATE, Spermine HCl |
| Reservoir: | | WATER, MPD |
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| Refinement: | The structure was refined using the NUCLSQ program.
The R value is
20
for 2003 reflections
in the resolution range 8.000 to
2.500 Ångstroms
with I > 0.500 sigma(I).
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