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NDB ID: UR0008    PDB ID: 1DDY 


Title:

MOLECULAR RECOGNITION BY THE VITAMIN B12 RNA APTAMER

Molecular Description:

VITAMIN B12 BINDING RNA
COBALAMIN (VITAMIN B12)

Structural Keywords:

SINGLE STRAND, LOOPS, FLIPPED-OUT BASES, BASE TRIPLET

Nucleic Acid Sequence:

Click to show/hide 1 nucleic acid sequences

Protein Sequence:

No Protein Sequence Found

Primary Citation:

Sussman, D., Nix, J.C., Wilson, C.
The structural basis for molecular recognition by the vitamin B 12 RNA aptamer. 
Nat.Struct.Biol., 7, pp. 53 - 57, 2000.

Experimental Information:

X-RAY DIFFRACTION

Space Group:

C 2 2 21

Cell Constants:

a = 91.33   b = 161.88   c = 100.96 (Ångstroms)

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

Refinement:

The structure was refined using the CNS program. The R value is 0.204 for 13252 reflections in the resolution range 12.0 to 3.0 Ångstroms with Fobs >  0.0 sigma(Fobs) and with I >  0.0 sigma(I)