Figure 1.

Amino acid sequence alignment of rat, rabbit, human, and chicken PC. Note the low homology and variable length of the ectodomains and the high homology of the putative transmembrane domains (box) and cytoplasmic domains of all four proteins. The location of the cysteine residues (asterisks) is highly conserved. Potential PKC (●) and casein kinase II (○) phosphorylation sites are indicated. Black, amino acid identity; gray, amino acid similarity. Data are from Kershaw et al. (1995, 1997) and McNagny et al. (1997).