Table of Contents
Journal of Theoretical Chemistry
Volume 2013, Article ID 961378, 5 pages
Research Article

Studying the Polypeptide Sequence (α-Code) of Escherichia coli

Mathematical Chemistry Group, Noble Institution for Environmental Peace, P.O. Box 163, 720 Spadina Avenue, Toronto, ON, Canada M5S 2T9

Received 19 March 2013; Accepted 21 November 2013

Academic Editors: A. M. Lamsabhi, A. Stavrakoudis, and B. M. Wong

Copyright © 2013 Vladimir R. Rosenfeld. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This paper is devoted to algebraically simulating the α-code of bacterium Escherichia coli and studying contrast factors (words) in its polypeptide sequence. We utilize the methods of spectral theory of graphs which were previously employed by us for enumerating De Bruijn and Kautz sequences. The empirical material is borrowed from the computer investigation of contrast factors in the polypeptide sequences of prokaryotes.