An analogue 
peptide that comprises the variable regions of the light or heavy chains of an 
antibody of a first species selectively binding to a 
carcinoma antigen has 1 to 46 amino acids of the framework regions per chain substituted with amino acids such as those present in equivalent positions in antibodies of a species other than the first species, or fragments thereof comprising 1 to 3 variable region CDRs per chain and optionally flanking regions thereof of 1 to 10 or more amino acids, alone or with an N-terminal fragment of 1 to 10 or more amino acids, combinations or mixtures thereof. The polypeptide may also comprise an 
effector agent and / or be glycosylated, and is presented as a composition with a carrier. The analogue peptides are used in diagnostic kits for carcinomas and methods for 
in vivo imaging and treating a primary or metastasized 
carcinoma, and 
in vitro diagnosing a 
carcinoma, 
ex vivo purging neoplastic cells from a 
biological fluid. RNAs and DNAs 
encode the analogue 
peptide, and a 
hybrid vector carrying the nucleotides and transfected cells express the peptides and a method produces the analogue 
peptide. An anti-
idiotype polypeptide comprises 
polyclonal antibodies raised against an anti-carcinoma 
antibody or the analogue peptide of this invention, 
monoclonal antibodies thereof, Fab, Fab′, (Fab′)2, CDR, variable region, or analogues or fragments thereof, combinations thereof with an 
oligopeptide comprising a TRP 
trimer, tandem repeats thereof, or combination or mixtures thereof. An anti-
idiotype hybrid polypeptide with an 
effector agent and the anti-
idiotype polypeptide, an anti-carcinoma vaccine, an anti-carcinoma 
vaccination kit, a method of vaccinating against carcinoma and a method of lowering the 
serum concentration of a circulating 
antibody or polypeptide are provided.