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| Title: | | EXTENSION OF THE FOUR-STRANDED INTERCALATED CYTOSINE MOTIF BY ADENINE.ADENINE BASE PAIRING IN THE CRYSTAL STRUCTURE OF D(CCCAAT) | |
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| Molecular Description: | 5'-D(CpCpCpApApT)-3' |
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| Structural Features: | QUADRUPLE HELIX, PARALLEL-STRANDED, BASE INTERCALATED |
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| Nucleic Acid Sequence: |
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| Chains | A,B: | | (DC) (DC) (DC) (DA) (DA) (DT) |
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| Primary Citation: | Berger, I., Kang, C., Fredian, A., Ratliff, R., Moyzis, R., Rich, A.
Extension of the four-stranded intercalated cytosine motif by adenine.adenine base pairing in the crystal structure of d(CCCAAT).
Nat.Struct.Biol.
, 2,
pp. 416 - 425, 1995.
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| Experimental Information: | X-RAY DIFFRACTION |
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| Space Group: |
P
62
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| Cell Constants: |
| a = 32.180 | b = 32.180 | c = 52.490 | (Ångstroms) |
 = 90.00 |  = 90.00 |  = 120.00 | (degrees) |
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| Refinement: | The structure was refined using the X-PLOR program.
The R value is
19.4
for 2285 reflections
in the resolution range 10.000 to
1.850 Ångstroms
with Fobs > 2.000 sigma(Fobs).
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