Abstract
We developed a short Ca2+-dependent deoxyribozyme with 11 mer catalytic loop domain (dGGCTACAACGA) that catalyzed site-specific RNA cleavage reaction between rA and rU. The second-order rate constant of this short deoxyribozyme is 1.7 x 10(7) M(-1) min(-1) at 37 degrees C, and this value is very similar to that of the deoxyribozyme (dGGCTAGCTACAACGA) in the presence of Ca2+.
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