Signal peptide, CUB and EGF-like domain-containing protein 2 (Scube2)

Lipid-binding protein required for SHH long-lived signaling by binding to the dually lipid-modified SHH (ShhNp) and by encouraging ShhNp mobilization, solubilization and release from the cell membrane (PubMed:22902404, PubMed:22677548). Acts by improving the proteolytic processing (shedding) of the lipid- modified N- and C- terminal of ShhNp in the cell surface (PubMed:24522195).

Synergizes with DISP1 to cause a boost in SHH secretion (PubMed:22902404). Probable cell surface coreceptor for VEGFR2 involved with VEGFR2-mediated angiogenesis (PubMed:27834687).