title: Definition of surface-exposed epitopes on the (Ca(2+)-Mg2+)-ATPase of sarcoplasmic reticulum.
abstract: Epitopes for monoclonal antibodies binding to the native (Ca(2+)-Mg2+)-ATPase have been defined by studying binding to sets of hexameric peptides synthesized on plastic pegs. Epitopes have been confirmed by demonstrating the binding of anti-peptide antibodies to the ATPase. A method is presented for definition of surface-exposed epitopes using polyclonal antibodies. Three surface-exposed epitopes have been defined in the nucleotide-binding domain of the ATPase, suggesting considerable surface exposure of this region. Other surface-exposed epitopes have been located in the region of the fourth stalk domain.
authors.affiliation: Department of Biochemistry, University of Southampton, U.K.
authors.forename: R E
authors.initials: RE
authors.lastname: Tunwell
authors.forename: J W
authors.initials: JW
authors.lastname: Conlan
authors.forename: I
authors.initials: I
authors.lastname: Matthews
authors.forename: J M
authors.initials: JM
authors.lastname: East
authors.forename: A G
authors.initials: AG
authors.lastname: Lee
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D000911:Antibodies, Monoclonal / Q000276:immunology; D017301:Ca(2+) Mg(2+)-ATPase / Q000378:metabolism*; D000252:Calcium-Transporting ATPases / Q000378:metabolism*; D004797:Enzyme-Linked Immunosorbent Assay; D000939:Epitopes / Q000276:immunology*; D008969:Molecular Sequence Data; D009711:Nucleotides / Q000378:metabolism; D011817:Rabbits; D012519:Sarcoplasmic Reticulum / Q000201:enzymology*
chemical_list: D000911:Antibodies, Monoclonal; D000939:Epitopes; D009711:Nucleotides; D017301:Ca(2+) Mg(2+)-ATPase; D000252:Calcium-Transporting ATPases