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日期:2024-04-24
By Quan Du, last modified on June 1st, 1999. Best viewed at 1024*768 monitor resolution. Ribozymes are antisense RNA molecules that have catalytic activity. They function by binding to the target RNA moiety through Watson-Crick base pairing and inactivate...
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日期:2024-04-20
Researchers have isolated a specific site in these viroids responsible for the process of self-cleavage. The site is less than 30 nucleotides long and consists of three stems coming off a central loop. This secondary structure, called a "hammerhead", is c...
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日期:2024-04-24
Hammerhead, hairpin, HDV and VS ribozymes. These small catalytic RNAs range from about 40 to 155 nucleotides in length. The best characterized of these ribozymes is also the smallest self-cleaving sequence of RNA, called the hammerhead ribozyme. This ......
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日期:2024-04-23
Ribozymes For many years, it was believed that the only enzymes were proteins and their cofactors. Recently, however, several RNA enzymes have been discovered. These enzymes are called ribozymes and exhibit all the same features (specificity, transition s...
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日期:2024-04-23
Ribozymes Any molecule that displays any of the catalytic motifs seen in the earlier guides (general acid/base catalysis, electrostatic catalysis, nucleophilic catalysis, intramolecular catalysis, transition state stabilization) can be a catalyst. So far ...
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日期:2024-04-18
Specialist at the Laboratory for Fluorescence Dynamics, University of California, Irvine ... Software FlimFast - Software for Fluorescence Lifetime Imaging at Video-Rate. FlimFast enables continuous mode fluorescence lifetime image acquisition from fast f...
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日期:2024-04-23
The Stanford Synchrotron Radiation Lightsource (SSRL) provides synchrotron radiation, a name given to X-rays or light produced by electrons circulating in a storage ring at nearly the speed of light. These extremely bright X-rays can be used to investigat...