title: The proteome expression patterns in adult Ascaris suum under exposure to aerobic/anaerobic environments analyzed by two-dimensional electrophoresis.
abstract: We investigated the protein expression patterns (the proteome) in adult Ascaris suum under exposure to aerobic and anaerobic environments in vitro using two-dimensional polyacrylamide gel electrophoresis. Adult A. suum were cultured in RPMI-1640 in the absence of oxygen (anaerobic) or in its presence (aerobic), and whole worm extracts and their excretory-secretory (ES) products were prepared for protein analysis. More than 200 protein spots resolved in two-dimensional gels. A comparison of aerobic versus anaerobic cultures revealed two aerobic and three anaerobic specific spots differentially expressed in adult worm extracts. ES products released during aerobic/anaerobic cultures also exhibited one aerobic and seven anaerobic specific spots in two-dimensional maps. One of the anaerobic specific protein spot was analyzed for its internal amino acid sequence (1-LLAFELAPHGIR-12; 1-VNTVNPGAVD-10) and the protein was predicted to be a putative dehydrogenase. These findings suggest that the availability of oxygen or its absence in the environment may influence protein expression patterns in parasitic nematodes.
authors.affiliation: Laboratory of Parasitic Diseases, National Institute of Animal Health, National Agricultural Research Organization, 3-1-5 Kannondai, Tsukuba, Ibaraki 305-0856, Japan.
authors.forename: M Khyrul
authors.initials: MK
authors.lastname: Islam
authors.forename: Takeharu
authors.initials: T
authors.lastname: Miyoshi
authors.forename: Yuichi
authors.initials: Y
authors.lastname: Yokomizo
authors.forename: Naotoshi
authors.initials: N
authors.lastname: Tsuji
mesh_terms: D000332:Aerobiosis; D000595:Amino Acid Sequence; D000693:Anaerobiosis; D000818:Animals; D017165:Ascaris suum / Q000235:genetics / Q000254:growth & development* / Q000378:metabolism; D015180:Electrophoresis, Gel, Two-Dimensional; D005260:Female; D005786:Gene Expression Regulation; D015801:Helminth Proteins / Q000737:chemistry / Q000378:metabolism*; D008297:Male; D020543:Proteome
chemical_list: D015801:Helminth Proteins; D020543:Proteome