title: Cationic detergents enable the separation of membrane proteins of Plasmodium falciparum-infected erythrocytes by 2D gel electrophoresis.
abstract: The intraerythrocytic stage of Plasmodium falciparum alters the characteristics of its host cell by exporting selected plasmodial proteins. Although it is clear that the physicochemical and immunobiological properties of the host cell are modulated during parasite development, the involved plasmodial proteins and their mode of action are not completely known. Using cetyltrimethylammonium bromide (CTAB) or benzyldimethyl-n-hexadecylammonium chloride (16-BAC) for the first dimension and SDS for the second dimension, we separated proteins from membranes of human erythrocytes and of erythrocytes infected with the malaria parasite P. falciparum. Protein spots were analyzed by MALDI-TOF/TOF MS and annotated in respective 2D master gels. By using the alternative 2D approach, characteristic host cell membrane proteins and, more importantly, membrane-associated and exported plasmodial proteins were identified that might play a role in parasite-induced host cell modulation.
authors.affiliation: Department of Zoophysiology, Zoological Institute, University of Kiel, Kiel, Germany.
authors.forename: Stephan
authors.initials: S
authors.lastname: Philipp
authors.forename: Thomas
authors.initials: T
authors.lastname: Jakoby
authors.forename: Andreas
authors.initials: A
authors.lastname: Tholey
authors.forename: Ottmar
authors.initials: O
authors.lastname: Janssen
authors.forename: Matthias
authors.initials: M
authors.lastname: Leippe
authors.forename: Christoph
authors.initials: C
authors.lastname: Gelhaus
mesh_terms: D000077286:Cetrimonium; D002593:Cetrimonium Compounds / Q000737:chemistry; D003902:Detergents / Q000737:chemistry*; D015180:Electrophoresis, Gel, Two-Dimensional; D004910:Erythrocyte Membrane / Q000737:chemistry* / Q000469:parasitology*; D005233:Fatty Alcohols / Q000737:chemistry; D006790:Host-Parasite Interactions; D006801:Humans; D016778:Malaria, Falciparum / Q000378:metabolism; D008565:Membrane Proteins / Q000032:analysis* / Q000737:chemistry; D010963:Plasmodium falciparum / Q000378:metabolism*; D040901:Proteomics / Q000379:methods; D015800:Protozoan Proteins / Q000032:analysis* / Q000737:chemistry; D000644:Quaternary Ammonium Compounds / Q000737:chemistry
chemical_list: D002593:Cetrimonium Compounds; D003902:Detergents; D005233:Fatty Alcohols; D008565:Membrane Proteins; D015800:Protozoan Proteins; D000644:Quaternary Ammonium Compounds; C012817:cetalkonium chloride; D000077286:Cetrimonium