Fig. 2.
(A) Schematic representation of the genomic structure of the FOP gene. All exons are represented in the 5′ to 3′ order of genomic DNA: shaded and solid boxes represent constant and alternatively spliced exons, respectively. Arabic and roman numbers indicate the size in kilobases of introns and the position of exons, respectively. The arrow indicates the breakpoint. Restriction enzyme sites are BamHI (B), EcoRI (E), andXba I (X). (B) Similarities of the deduced human FOP protein (Hs) with EST protein translation from Mus musculus (Mm),Danio rerio (Dr), Leishmania major (Lm), andOryza sativa (Os). Shading indicates common (boxed) and similar amino acid residues. Numbers at the top of each alignment indicate amino acid positions in FOP. Asterisks show conserved leucine residues.