We identified and isolated a panel of protective mouse monoclonal antibodies (mAbs) specific for C. albicans cell surface peptides and a glycan epitope, and each mAb is protective in both immunocompetent mice and neutropenic mice. Therefore, we selected the following four conserved 14-mer protective peptide epitopes and one glycan epitope as targets for human IgGs: Fba (YGKDVKDLFDYAQE), Met6 (PRIGGQRELKKITE), Hwp1, and phosphoglycerate kinase 1 (Pgk1) (VPLDGKTITNNQRI). Each synthetic peptide was produced commercially (GenScript) and used as the coating antigen on enzyme immunoassay (EIA) plates. The purity of each peptide was >98.5%. The glycan epitope β-1,2-mannotriose (gift from David Bundle) was conjugated to bovine serum albumin (BSA) as a trimannose-BSA conjugate for EIA plate coating.
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