title: Compressing proteomes: the relevance of medium range correlations.
abstract: We study the nonrandomness of proteome sequences by analysing the correlations that arise between amino acids at a short and medium range, more specifically, between amino acids located 10 or 100 residues apart; respectively. We show that statistical models that consider these two types of correlation are more likely to seize the information contained in protein sequences and thus achieve good compression rates. Finally, we propose that the cause for this redundancy is related to the evolutionary origin of proteomes and protein sequences.
authors.affiliation: Dipartimento di Matematica, Università di Roma La Sapienza, Piazzale Aldo Moro 5, Rome, Italy.
authors.forename: Dario
authors.initials: D
authors.lastname: Benedetto
authors.forename: Emanuele
authors.initials: E
authors.lastname: Caglioti
authors.forename: Claudia
authors.initials: C
authors.lastname: Chica