Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun An RNA molecule that acts as a catalyst, especially for the cleavage of RNA strands at specific sites.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun a
fragment ofRNA that can act as anenzyme
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
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Examples
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The ribozyme was the template, and was self-complementary.
Good Math, Bad Math, and David Berlinkski - The Panda's Thumb 2006
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The alternative hypothesis to autocatalysis by catalysis via ligation or other reactions is the hope to form an RNA enzyme, called a ribozyme, that can act as a "polymerase" enzyme able to catalyze the template replication of any RNA, by sequential addition of nucleotides that are Watson Crick complements of the template strand.
NPR Topics: News 2010
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There must exist some mechanism for manufacturing the enzyme (or other biological catalyst, such as ribozyme), and that mechanism must be subject to mutation capable of altering the structure of the enzyme.
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There must exist some mechanism for manufacturing the enzyme (or other biological catalyst, such as ribozyme), and that mechanism must be subject to mutation capable of altering the structure of the enzyme.
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There must exist some mechanism for manufacturing the enzyme (or other biological catalyst, such as ribozyme), and that mechanism must be subject to mutation capable of altering the structure of the enzyme.
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There is much significance made of the "first living cell", but the simplest replicating units discovered so far are actually ribozymes (RNA enzymes) which have less than a billionth as many atoms as a cell (a cell is a few quadrillion atoms, while a ribozyme is a few tens of thousands, if I understand correctly).
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If there was no ancestor, however, how can we avoid thinking about the possibility that all genes are ultimately derived from a single short RNA, the first replicating ribozyme.
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In fact, this prediction can be confirmed by the isolation of a rudimentary RNA replicase ribozyme (52, 53).
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In fact, this prediction can be confirmed by the isolation of a rudimentary RNA replicase ribozyme (52, 53).
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Maybe these water-and-surface pocket "enzymes" are fossils from an important form of RNA world ribozyme activity.
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