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NDB ID: URL051    PDB ID: 283D 


Title:

A CURVED RNA HELIX INCORPORATING AN INTERNAL LOOP WITH G-A AND A-A NON-WATSON-CRICK BASE PAIRING

Molecular Description:

5'-R(*GP*GP*CP*CP*GP*AP*AP*AP*GP*GP*CP*C)-3'
MN 2+

Structural Keywords:

DOUBLE HELIX, INTERNAL LOOP

Nucleic Acid Sequence:

Click to show/hide 1 nucleic acid sequences

Protein Sequence:

No Protein Sequence Found

Primary Citation:

Baeyens, K.J., De Bondt, H.L., Pardi, A., Holbrook, S.R.
A curved RNA helix incorporating an internal loop with G.A and A.A non-Watson-Crick base pairing. 
Proc.Natl.Acad.Sci.USA, 93, pp. 12851 - 12855, 1996.

Experimental Information:

X-RAY DIFFRACTION

Space Group:

P 65 2 2

Cell Constants:

a = 37.71   b = 37.71   c = 88.3 (Ångstroms)

α = 90.0   β = 90.0   γ = 120.0 (degrees)

Refinement:

The structure was refined using the X-PLOR program. The R value is 0.186 for 1502 reflections in the resolution range 8.0 to 2.3 Ångstroms with Fobs >  3.0 sigma(Fobs) and with I >  0.0 sigma(I)