Alignment of hematopoietic fz genes. Amino acid sequences of the isolated fz gene fragments (HfzBM1-6) were aligned to homologous sequences identified in Genbank. The identified homologs are human frizzled-5 (Hfz5; Genbank accession no. U43318 ), human frizzled homolog (FZD3; Genbank accession no. U82169), mouse frizzled-9 (Mfz9; Genbank accession no. AF033585), rat frizzled-1 (Rfz1; Genbank accession no. L02529), chicken frizzled-1 (Cfz1; Genbank accession no. AF031830), human frizzled-related gene (HUMFRIZ; Genbank accession no. L37882), rat frizzled-2 (Rfz2; Genbank accession no.L02530), Zebrafish frizzled gene (Zgo4; Genbank accession no. U49408), mouse frizzled-7 (Mfz7; Genbank accession no. U43320), and chicken frizzled-7 (Cfz7; Genbank accession no. AF031831). Identities are indicated by dots (•).