Layered Double Hydroxide Minerals as Possible Prebiotic Information Storage and Transfer Compounds

Details Layered Double Hydroxide Minerals as Possible Prebiotic Information Storage and Transfer Compounds Layered Double Hydroxide Minerals as Possible Prebiotic Information Storage and Transfer Compounds

Feb 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006oleb...36...13g&link_type=abstract

Origins of Life and Evolution of Biospheres, Volume 36, Issue 1, pp.13-37

Computer Science

Information Theory

4

Anionic Clay, Information Theory, Layered Double Hydroxides, Rna World, Terephthalate

Scientific paper

One of the fundamental difficulties when considering the origin of life on Earth is the identification of an emergent system that not only replicated, but also had the capacity to undergo discrete mutation in such a way that following generations might inherit and pass on the mutation. We speculate that the layered double hydroxide (LDH) minerals are plausible candidates for a proto-RNA molecule. We describe a hypothetical LDH-like system which, when intercalated with certain anions, forms crystals with a high degree of internal order giving rise to novel information storage structures in which replication fidelity is maintained, a concept we use to propose an explanation for interstratification in terephthalate LDHs. The external surfaces of these hypothetical crystals provide active sites whose structure and chemistry is dictated by the internal information content of the LDH. Depending on the LDH polytype, the opposing external surfaces of a crystal may give rise to reactive sites that are either complementary or mirror images of each other, and so may be chiral. We also examine similarities between these proposed “proto-RNA” structures and the DNA that encodes the hereditary information in life today, concluding with a hypothetical scenario wherein these proto-RNA molecules predated the putative RNA-world.

Affiliated with

Also associated with

No associations

Rating

Layered Double Hydroxide Minerals as Possible Prebiotic Information Storage and Transfer Compounds does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Layered Double Hydroxide Minerals as Possible Prebiotic Information Storage and Transfer Compounds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Layered Double Hydroxide Minerals as Possible Prebiotic Information Storage and Transfer Compounds will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1722467