4 papers
Biodiversity in model ecosystems, II: Species assembly and food web structure
Ugo Bastolla, Michael Lässig, Susanna C. Manrubia +1
This is the second of two papers dedicated to the relationship between population models of competition and biodiversity. Here we consider species assembly models where the populat…
Biodiversity in model ecosystems, I: Coexistence conditions for competing species
Ugo Bastolla, Michael Lässig, Susanna C. Manrubia +1
This is the first of two papers where we discuss the limits imposed by competition to the biodiversity of species communities. In this first paper we study the coexistence of compe…
Looking at structure, stability, and evolution of proteins through the principal eigenvector of contact matrices and hydrophobicity profiles
Ugo Bastolla, Markus Porto, H. Eduardo Roman +1
We review and further develop an analytical model that describes how thermodynamic constraints on the stability of the native state influence protein evolution in a site-specific m…
Prediction of site-specific amino acid distributions and limits of divergent evolutionary changes in protein sequences
Markus Porto, H. Eduardo Roman, Michele Vendruscolo +1
We derive an analytic expression for site-specific stationary distributions of amino acids from the Structurally Constrained Neutral (SCN) model of protein evolution with conservat…