#idPDBInfo
11A1TCUA,UAG
21ANRGAGC,GCUC
31ANRGGC,GCC
41ANRAGC,GCU
51ANRGGC,GCC
61ARJGGC,GCC
71ARJCAG,CUG
81ARJGGC,GCC
91ARJAGA,UCU
101BN0GAC,GUC
111BN0CUA,UAG
121BN0GAC,GUC
131BN0CUA,UAG
141BN0GAC,GUC
151DI2GGCGCGCGCC,GGCGCGCGCC
161EFWGGA,UCC
171EI2GUG,CAC
181EI2GUG,CAC
191EKZCAG,CUG
201EKZCUG,CAG

Coloring options:  

Some internal loops are self-complementary, which may indicate that they are, in fact, simply normal watson-crick helices and shouldn't be considered as internal loops.