Modelling protein evolution

57 mins 35 secs,  364.40 MB,  WebM  640x360,  29.97 fps,  44100 Hz,  864.01 kbits/sec
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Description: Gascuel, O (CNRS)
Wednesday 22 June 2011, 14:00-15:00
 
Created: 2011-06-27 09:41
Collection: Phylogenetics
Publisher: Isaac Newton Institute
Copyright: Gascuel, O
Language: eng (English)
Credits:
Author:  Gascuel, O
Director:  Steve Greenham
 
Abstract: I'll describe our recent efforts to model protein evolution and amino-acid substitutions by (1) designing an easy to use pipeline to estimate amino-acid replacement matrices for specific protein groups, (2) using the protein structure, (3) simplifying mixture models that have been proposed so far. I'll discuss several issues related to models (e.g. complexity trade-off), biology (e.g. independence of nucleotide mutations) and theory (e.g. identifiability, prediction of ancestral sequences).
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