*Details for Individual Sequences in the Dataset are Available Under the Respective Links

  Overall Archaea Bacteria Eukaryotic Chloroplast Eukaryotic Mitochondrion Eukaryotic Nuclear
16S rRNA            
Sequences 496 23 195 33 112 133
Average Optimal Accuracy1,2 41% 62% 49% 46% 30% 34%
Total Suboptimals            
Count 370,848 17,227 146,055 24,717 83,232 99,617
Average 748 749 749 749 743 749
% of Total Subopts - 5 39 7 22 27
Better Than Optimal3            
Count 138,313 5,281 56,400 6,756 34,140 37,536
Average 279 230 280 205 305 282
% of Total Subopts 37 31 37 27 41 38
Worse Than Optimal3            
Count 215,069 11,341 87,357 17,326 42,809 56,236
Average 434 493 448 525 382 423
% of Total Subopts 58 66 60 70 51 56
Same as Optimal3            
Count 17,466 605 4,098 635 6,283 5,845
Average 35 26 21 19 56 44
% of Total Subopts 5 4 3 3 8 6
  1. Only canonical base pairs (G-C,C-G,A-U,U-A,G-U,U-G) are considered.
  2. Accuracy values are determined by averaging the calculated accuracy values (number of comparatively predicted base-pairs that appear in the optimal structure prediction for a given sequence) for each individual sequence within a particular phylogenetic category.
  3. Number of suboptimal structure predictions within 12 kcal/mol of the optimal structure prediction with an accuracy higher, lower or equal to the optimal structure prediction for their respective sequence. Accuracy of a suboptimal structure prediction is calculated in the same manner as the accuracy for the optimal structure prediction. See RNA Secondary Structure Prediction and Prediction Accuracy Calculations in Methods.