RNA Base-Pairs, Stacking, etc.
Interactive basepair map with 3D fragment visualization for: 1SZ1 
Base Pair Hydrogen Bonding Classification
Nucleic Acid Backbone Torsions
Base Pair Morphology Parameters
MECHANISM OF CCA-ADDING ENZYMES SPECIFICITY REVEALED BY CRYSTAL STRUCTURES OF TERNARY COMPLEXES
tRNA nucleotidyltransferase (E.C.2.7.7.25)/RNA Complex
T, INTERNAL LOOP, HAIRPIN LOOP
Click to show/hide 1 nucleic acid sequences
Click to show/hide 1 protein sequences
Xiong, Y., Steitz, T.A.
Mechanism of transfer RNA maturation by CCA-adding enzyme without using an oligonucleotide template. 
Nature, 430, pp. 640 - 645, 2004.
X-RAY DIFFRACTION
P 3 2 1
a = 218.403 b = 218.403 c = 170.263 (Ångstroms)
α = 90.0 β = 90.0 γ = 120.0 (degrees)
The structure was refined using the REFMAC program. The R value is 0.36131 for 10111 reflections in the resolution range 44.72 to 6.21 Ångstroms with Fobs > 0.0 sigma(Fobs) and with I > 0.0 sigma(I)
Asymmetric Unit coordinates (pdb format, Unix compressed(.gz))
Asymmetric Unit coordinates (cif format, Unix compressed(.gz))
Biological Assembly coordinates (pdb format) 1
Structure Factors (cif format)
Coordinates (pdb format, Unix compressed(.gz))
Coordinates (cif format, Unix compressed(.gz))
NMR Restraints (cif format, Unix compressed(.gz))
XML | Complete with coordinates (xml format, GNU compressed(.gz))