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| Title: | | CRYSTAL STRUCTURE OF AN ALTERNATING A-T OLIGONUCLEOTIDE FRAGMENT WITH HOOGSTEEN BASE PAIRING | |
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| Molecular Description: | 5'-D(ApTpAp(BRU)pApT)-3' |
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| Structural Features: | RH DOUBLE HELIX, HOOGSTEEN BASE PAIRING, FLIPPED-OUT BASES, OVERHANGING BASES |
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| Nucleic Acid Sequence: |
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| Chains | A,B,C,D: | | (DA) (DT) (DA) (BRU) (DA) (DT) |
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| Primary Citation: | Abrescia, N.G.A., Thompson, A., Huynh-Dinh, T., Subirana, J.A.
Crystal Structure of an Antiparallel DNA Fragment with Hoogsteen Base Pairing
Proc.Natl.Acad.Sci.USA
, 99,
pp. 2806, 2002.
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| Experimental Information: | X-RAY DIFFRACTION |
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| Space Group: |
P
1
21
1
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| Cell Constants: |
| a = 23.960 | b = 48.950 | c = 32.240 | (Ångstroms) |
 = 90.00 |  = 93.27 |  = 90.00 | (degrees) |
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| Refinement: | The structure was refined using the CNS 1.0 program.
The R value is
22.0
for 2547 reflections
in the resolution range 15.00 to
2.5 Ångstroms
with Fobs > 0.0 sigma(Fobs).
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