Sequence alignment of the deduced amino acid sequence of mammalian Pc-tps given in one-letter code. Amino acid sequences of mouse (muPc-tp), rat (ratPc-tp), human (huPC-TP), and bovine (bosPC-TP) Pc-tp deduced from the corresponding cDNAs. A dash indicates an amino acid identical to the mouse consensus, and an asterisk indicates a deletion. Highly similar amino acids are shaded in dark gray, and amino acids with a lower similarity are shaded in light gray. The overall similarity and identity of the PC-TPs to mice Pc-tp are indicated.