Overlapping monkey cDNA clones containing monkey LTBP-3 sequence. The numbers displayed next to each clone represent the nucleotides of the cDNA clone. The numbering system is based on that presented for the mouse LTBP-3 cDNA sequence in which the A of the intitiator Met codon is nucleotide 1 (Yin et al. 1995). The fusion proteins encoded by each of the cDNA clones demonstrated interaction with the extracellular domain of proHB-EGF when tested for β-galactosidase activity using the yeast two-hybrid system assay.