TM9 family in D. discoideum. (A) Protein alignment of three
members of the TM9 in D. discoideum. Putative transmembrane domains
are underlined. (B) Phylogenetic tree of TM9 proteins in D.
discoideum (Phg1a, b, and c) and in human (TM9SF1, 2, 3, and 4).
Sequences were TM9SF1 (hEMP70; accession no. O15321), TM9SF2 (p76; accession
no. Q99805), TM9SF3 (hSMBP; accession no. Q9HD45), TM9SF4 (accession no.
Q92544), Phg1a (accession no. AJ318760), Phg1b (accession no. AJ507828), and
Phg1c (accession no. AJ507829).