title: Plasmodium falciparum: generation of a cDNA library enriched in sporozoite-specific transcripts by directional tag subtractive hybridization.
abstract: We have adapted the "directional tag subtractive hybridization" technique as a means of investigating stage-specific gene expression in Plasmodium falciparum. This technique utilizes unidirectional cDNA libraries cloned into separate lambda vectors and involves hydroxyapatite chromatographic separation of target antisense cDNA and driver sense strand cRNA followed by PCR amplification of cDNA sequences specific to the target stage. This technique enabled efficient subtraction of asexual blood stage sequences from a P. falciparum sporozoite cDNA library and led to identification of novel sporozoite sequences. This technique can be applied to study gene expression in parasite stages that are difficult to obtain routinely.
authors.affiliation: Department of Molecular Biology and Biochemistry, University of California, Irvine, California, 92697, USA. dfidock@aecom.yu.edu
authors.forename: D A
authors.initials: DA
authors.lastname: Fidock
authors.forename: T V
authors.initials: TV
authors.lastname: Nguyen
authors.forename: J M
authors.initials: JM
authors.lastname: Ribeiro
authors.forename: J G
authors.initials: JG
authors.lastname: Valenzuela
authors.forename: A A
authors.initials: AA
authors.lastname: James
mesh_terms: D000818:Animals; D000852:Anopheles; D018076:DNA, Complementary / Q000737:chemistry*; D016054:DNA, Protozoan / Q000737:chemistry*; D005786:Gene Expression Regulation; D015723:Gene Library; D009693:Nucleic Acid Hybridization / Q000379:methods*; D010963:Plasmodium falciparum / Q000235:genetics*; D016133:Polymerase Chain Reaction
chemical_list: D018076:DNA, Complementary; D016054:DNA, Protozoan