1. Assign each antigen and final antibody product unique names of your design
2. 3-5 mg for PE-AS/PE-AG and ~8-10 mg for PE-AP
3. Lyophilized peptides are preferred; buffer condition for peptides in solutions needs to be specified
4. Typically >80% (at least >70% by HPLC) purity is preferred
5. A Cysteine (C) residue is typically added at the N'- or C-terminus of peptide antigens for the conjugation with carrier proteins