Povelones, Megan L Histone H1 plays a role in heterochromatin formation and VSG expression site silencing in Trypanosoma brucei. [electronic resource] - PLoS pathogens 2012 - e1003010 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 1553-7374 Standard No.: 10.1371/journal.ppat.1003010 doi Subjects--Topical Terms: Antigenic Variation--physiologyGene Expression Regulation--physiologyHeterochromatin--geneticsHistonesProtozoan Proteins--biosynthesisTrypanosoma cruzi--geneticsVariant Surface Glycoproteins, Trypanosoma--biosynthesis