Last modified on 14 July 2000.
Position b | Percent A c | Predicted Structure Motifs d | Loop e | Position | Percent A | Predicted Structure Motifs | |
---|---|---|---|---|---|---|---|
Hairpin Loops | Internal Loops | ||||||
16 S rRNA | 16 S rRNA | ||||||
845 | 61 | 5 | 151 | 100 | |||
1016 | 94 | A, U | GNRA | 174 | 94 | A, GA | |
1453 | 52 | UNCG | 282 | 100 | A | ||
389 + | 100 | A | |||||
23 S rRNA | 482 | 98 | A, GA | ||||
199 | 100 | 4 | 487 | 99 | A, GA, E | ||
548 | 59 | 4 | 535 | 100 | |||
574 | 76 | U | 8 | 715 | 100 | A, GA | |
616 | 75 | 5* | 1306 | 100 | A, GA | ||
1176 | 62 | 4 | 1408 | 99 | A | ||
1918 | 93 | 7 | 1483 | 99 | A, GA | ||
2478 | 100 | A | 7* | 1499 | 100 | ||
2705 | 99 | 4* | |||||
2757 | 100 | A | 11* | 23 S rRNA | |||
2799 | 56 | 3 | 63 + | 56 | |||
2826 | 100 | 7 | 91 + | 89 | |||
2860 | 96 | A, U | GNRA | 103 | 99 | A | |
207 | 99 | A, GA, E | |||||
Multi-Stem Loops | 1050 | 100 | |||||
16 S rRNA | 1419 | 95 | A, GA | ||||
16 | 100 | A | 1664 + | 100 | |||
315 + | 100 | A | 1689 | 100 | A, GA, EL | ||
338 + | 99 | A | 1723 | 62 | |||
366 | 65 | 1745 | 53 | ||||
495 | 99 | 1802 | 100 | A, GA | |||
546 + | 51 | 1885 + | 98 | ||||
864 | 100 | U | 2005 + | 85 | A | ||
983 | 100 | A | 2327 + | 100 | A | ||
994 | 100 | 2614 | 100 | ||||
1101 | 100 | 2657 # | 100 | A, GA, E | |||
1157 | 100 | A, GA | 2690 | 68 | |||
1191 | 100 | ||||||
1339 | 100 | Bulge Loops | |||||
1349 | 100 | A, GA, E | 16 S rRNA | ||||
1398 | 100 | A | 55 + | 100 | |||
65 | 94 | ||||||
23 S rRNA | 130 + | 100 | |||||
52 | 99 | A, GA | 205 | 83 | |||
73 | 100 | 397 + | 100 | ||||
94 | 81 | 595 + | 79 | BT | |||
149 + | 95 | A | 1042 + | 55 | |||
233 | 100 | GA | 1055 | 100 | |||
270 | 92 | 1196 + | 99 | ||||
340 | 99 | A, GA, EL | 1227 + | 100 | |||
412 | 98 | 1394 + | 100 | ||||
432 | 100 | ||||||
460 | 99 | A, GA, E | 23 S rRNA | ||||
670 | 100 | 443 + | 100 | ||||
990 | 100 | 739 + | 61 | BT | |||
1103 + | 100 | A | 896 + | 99 | |||
1384 | 100 | 927 + | 89 | ||||
1603 | 99 | 1819 | 100 | ||||
1829 | 100 | 1981 + | 99 | ||||
2042 | 84 | 2051 + | 61 | ||||
2062 | 100 | 2873 + | 100 | ||||
2171 + | 100 | U | 2879 + | 98 | |||
2173 + | 100 | A, GA, U | |||||
2346 | 100 | A, GA | |||||
2358 | 98 | A | |||||
2835 | 100 | A |
a rRNA positions have an A motif in more than 50% of the bacterial sequences and are indicated in yellow on Figure 5. b The position number is the nucleotide at the 3 loop end, at the loop-helix junction; +, the nucleotide prior to this position is base-paired; #, Sarcin/Ricin loop. c More detailed information is available at http://www.rna.icmb.utexas.edu/ANALYSIS/A-STORY/. d A, AA.AG@helix.ends; BT, base triple; E, E loop; EL, E-like loop; GA, tandem G:A; PK, pseudoknot; U, U-turn (See Discussion). e Hairpin loop size and special characteristics: GNRA, tetraloops (Woese et al. 1990) occur in more than 70% of the bacterial rRNA sequences; *, unusually stable G:A or U:U first mismatch.