Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleHeterotachy, an important process of protein evolution.AuthorsLopez P; Casane D; Philippe HPublicationMolecular biology and evolution, 2002, Vol 19, Issue 1, p1ISSN0737-4038Publication typearticleDOI10.1093/oxfordjournals.molbev.a003973