Fig. 7. Comparison of amino acid sequences of Trypanosoma brucei P70 (TbGPI16) and human PIG-T. Alignment of P70 (TbGPI16) and human PIG-T (HsPIG-T) is shown. The N-terminal signal sequences are indicated by a thin overline for T. brucei P70 and a thin underline for human PIG-T. Transmembrane domains are shown by thick lines. The N-terminal and internal sequences of P70 determined by protein sequencing are shown by broken overlines. Identical and similar amino acids are shown in black and gray boxes, respectively.