3.4.16.5 carboxypeptidase C culture condition:antigen-presenting cell - 3.4.22.27 cathepsin S culture condition:antigen-presenting cell - 3.4.22.34 Legumain culture condition:antigen-presenting cell different types 3.4.23.34 cathepsin E culture condition:antigen-presenting cell - 3.4.23.34 cathepsin E culture condition:antigen-presenting cell APC