we have used short synthetic peptides , 12 and 13 amino acids in length , conjugated to carrier proteins to develop monoclonal antibodies ( mab ) to the envelope glycoprotein of 120 ( kd ) ( gp120 ) and the 3 ' open reading frame protein ( 3-orf ) of the human immunodeficiency virus type 1 ( hiv-1 ) .
C0007292
carrier proteins
C0033684
protein