Please cite:
Schudoma et al.,
Nucl. Acids Res. 38: 970-980.
DOI 10.1093/nar/gkp1010.
RLooM: RNA Loop Modeling based on homology and geometric constraints - Loop Database
Current Database Version 12-19-08 (sion)
Browse Database
Hairpins (13,085) Single Strand Segments (46,361) Internal Loops (17,133) Multiloops (5,756)

Length 10 Hairpins (30.0-cluster)

Cluster #structures
122 118
23 56
83 37
Small clusters (size < 25)
3 (14) 183 (10) 13 (9) 109 (5) 222 (3) 147 (3) 171 (2) 223 (1) 218 (1) 86 (1) 20 (1) 233 (1) 232 (1) 71 (1) 229 (1) 4 (1)
- or -

Sequence-based queries may include NC-IUB ambiguity codes. Internal loops and multibranched loops can be searched by separating the individual loop segments with a '-' character.



Single strand search:




For a query sequence of N bases, the input range is [0,N]. The default value of 0 will be used when ambiguity codes are present in the query sequence or the input is negative. Similarly, N will be used if the input is larger than the length of the query sequence.

- or -

Enter a 4-character pdb id. The search may be restricted to an individual chain, by attaching ':chain-id' (e.g., 2tra:A), with '%' matching any chain.

- or -


Concerning the following check box please see also Privacy Policy, section C.2