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| Title: | | X-RAY ANALYSIS OF A RNA TETRAPLEX R(UGGGGU)4 AT ULTRA-HIGH RESOLUTION | |
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| Molecular Description: | 5'-R(UpGpGpGpGpU)-3' |
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| Structural Features: | QUADRUPLE HELIX, BASE INTERCALATED, TETRAPLEX, OVERHANGING BASES |
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| Nucleic Acid Sequence: |
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| Chains | A, B, C, D: | |
U G G G G U
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| Primary Citation: | Deng, J., Xiong, Y., Sundaralingam, M.
X-ray analysis of an RNA tetraplex (UGGGGU)(4) with divalent Sr(2+) ions at subatomic resolution (0.61 A).
Proc.Natl.Acad.Sci.USA
, 98,
pp. 13665 - 13670, 2001.
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| Experimental Information: | X-RAY DIFFRACTION |
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| Space Group: |
P
4
21
2
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| Cell Constants: |
| a = 36.154 | b = 36.154 | c = 74.134 | (Ångstroms) |
 = 90.00 |  = 90.00 |  = 90.00 | (degrees) |
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| Crystallization Conditions: |
| Method: | | VAPOR DIFFUSION, HANGING DROP |
| Drop: | | Sodium Cacodylate, spermine tetrachloride, MgCl2, SrCl2, CaCl2, MPD |
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| Refinement: | The structure was refined using the SHELXL-97 program.
The R value is
10.3
for 207845 reflections
in the resolution range 20 to
0.61 Ångstroms
. |
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