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. 2002 Jan 15;30(2):456–462. doi: 10.1093/nar/30.2.456

Table 1. RNA oligonucleotides used in chemical shift mapping experiments.

No. RNA motif Occurrence in splice site sequences
1     UCUUa Caspase-9 (4); clathrin light chain B (11); calcitonin/calcitoning gene related peptide (13); fibroblast growth receptor-1 (51); GABA γ2 subunit (1); N-methyl-d-aspartate receptor (11); α-actinin (5); α-tropomyosin (8); β-tropomyosin (6)
2      CUUC  
3         UCUUC  
4     UCUUUa Fibroblast growth receptor-2 (2)
5     UCUCU Caspase-9 (4); clathrin light chain B (11); c-src (52); GABA γ2 subunit (1); α-tropomyosin (8); β-tropomyosin (6)
6    CUCUCU c-src (52); α-tropomyosin (8)
7 UCCUCUUC As above for UCUUC
8     UCUUCUCU bCaspase-9 (4); clathrin light chain B (11); c-src (52); GABA γ2 subunit (1); α-tropomyosin (8); β-tropomyosin (6)
9     UCUUCUCUUC  

UCUU sequences highlighted in bold; UCUCU sequences underlined.

aMotifs identified in sites protected by PTB from chemical modification and RNase T1 cleavage in EMCV and FMDV IRES sequences (24,44).

bReferences are to occurrences of the hexameric motif UUCUCU.