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Uni-directional pol...
Abstract
Ämnesord
Stäng
- The differences between uni-directional and bi-directional polymerization are considered. The uni-directional case is discussed in the framework of the RNA world. Similar to earlier models of this type, where polymerization was assumed to proceed in a bi-directional fashion (presumed to be relevant to peptide nucleic acids), left-handed and right-handed monomers are produced via an autocatalysis from an achiral substrate. The details of the bifurcation from a racemic solution to a homochiral state of either handedness is shown to be remarkably independent of whether the polymerization in uni-directional or bi-directional. Slightly larger differences are seen when dissociation is allowed and the dissociation fragments are being recycled into the achiral substrate.
Nyckelord
- enantiomeric cross-inhibition
- origin of homochirality
- RNA and DNA polymerization
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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