NDLI: Polymer Transport in Random Potentials and the Genetic Code: The Waltz of Life

Content Provider	Springer Nature Link
Author	Aldana González, M. Cocho, G. Larralde, H. Martínez Mekler, G.
Copyright Year	2003
Abstract	We address the question of why the translation from nucleic acids to protein forming amino acids is carried out by triplets known as codons. We approach this problem from a dynamical point of view by considering the translocation properties of primitive molecular machines operating under prebiotic conditions [1, 2, 3, 4]. Our model captures some basic ribosome-mRNA interaction features. We consider short chains of charged particles interacting with polymers via electrostatic forces, constrained to move in quasi one dimensional geometries, subject to external forcing. Our numerical and analytic studies of statistical properties of random chain/polymer potentials suggest that, under very general conditions, a dynamics is attained in which the chain moves along the polymer in steps of three monomers, traversing swiftly two monomers and lingering on the third one as in a waltz. This behavior is enhanced when we consider present day protein coding sequences. We also comment on noncoding sequences. We argue that this property could be one of the underlying causes for the three base codon structure of the genetic code.
Starting Page	459
Ending Page	474
Page Count	16
File Format	PDF
ISSN	14240637
Journal	Annales Henri Poincaré
Volume Number	4
Issue Number	1
e-ISSN	14240661
Language	English
Publisher	Birkhäuser-Verlag
Publisher Date	2003-01-01
Publisher Place	Basel
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Mathematical and Computational Physics Dynamical Systems and Ergodic Theory Quantum Physics Mathematical Methods in Physics Relativity and Cosmology Elementary Particles, Quantum Field Theory
Content Type	Text
Resource Type	Article
Subject	Statistical and Nonlinear Physics Nuclear and High Energy Physics Mathematical Physics

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