in an attempt to localize topographic domains specific to native human chorionic gonadotropin ( hcg ) , we studied the discontinuous antigenic regions recognized by a monoclonal anti-hcg antibody designated as c8 which binds only to hcg and does not cross-react with either the free hcg-alpha and hcg-beta subunits or other glycoprotein hormones .
C0018062
hcg
C0106132
hcg-beta subunits