Example 10
To identify targets of CCR8 antibodies, CCR8 antibodies were incubated with cells forced to express about 4,500 cell surface proteins in a fixed or live state. Anti-CCR8-1 was demonstrated to bind to only CCR8 while anti-CCR8-2 also bound to amyloid precursor-like protein 2 (APLP2), but at a significantly lower concentration (data not shown).