– Has bactericidal activity against E.faecalis and L.monocytogenes, but not against L.innocua and E.coli. Promotes angiogenesis (in vitro). Has low ribonuclease activity (in vitro). Promotes proliferation of melanoma cells, but not of endothelial cells or fibroblasts (in vitro). Angiogenin-4 Protein, Mouse, Recombinant (His & SUMOstar) is expressed in yeast with N-6xHis-sumostar tag. The predicted molecular weight is 29.9 kDa and the accession number is Q3TMQ6.