Table 2. Structural search of known motifs within the RNA motif atlas. The table summarizes the number of found motifs compared with FR3D (http://rna.bgsu.edu/rna3dhub/motifs). See SD Text 11 for a full list.

Motif	Reference PDB	Found motifs	False positive
T-LOOP	3RG5	57/66	17
GNRA	4A1B	217/219	63
C-LOOP	3V2F	18 /22	7
D-SHEAR	1SAQ	23/26	3
T-SHEAR	3V2F	24/31	18
K-TURN	3GX5	10/22	15
SARCIN	1Q96	13/16	3