Back to Search Start Over

Cooperation of catalysts and templates

Authors :
White, D. H
Kanavarioti, A
Nibley, C. W
Macklin, J. W
Source :
NASA, Washington Second Symposium on Chemical Evolution and the Origin and Evolution of Life.
Publication Year :
1986
Publisher :
United States: NASA Center for Aerospace Information (CASI), 1986.

Abstract

In order to understand how self-reproducing molecules could have originated on the primitive Earth or extraterrestrial bodies, it would be useful to find laboratory models of simple molecules which are able to carry out processes of catalysis and templating. Furthermore, it may be anticipated that systems in which several components are acting cooperatively to catalyze each other's synthesis will have different behavior with respect to natural selection than those of purely replicating systems. As the major focus of this work, laboratory models are devised to study the influence of short peptide catalysts on template reactions which produce oligonucleotides or additional peptides. Such catalysts could have been the earliest protoenzymes of selective advantage produced by replicating oligonucleotides. Since this is a complex problem, simpler systems are also studied which embody only one aspect at a time, such as peptide formation with and without a template, peptide catalysis of nontemplated peptide synthesis, and model reactions for replication of the type pioneered by Orgel.

Subjects

Subjects :
Space Biology

Details

Language :
English
Database :
NASA Technical Reports
Journal :
NASA, Washington Second Symposium on Chemical Evolution and the Origin and Evolution of Life
Publication Type :
Report
Accession number :
edsnas.19860017399
Document Type :
Report