May function as a tRNA-specific ribonuclease that abolishes protein synthesis by specifically hydrolyzing cellular tRNAs. Binds to actin on the surface of endothelial cells; once bound, angiogenin is endocytosed and translocated to the nucleus. Angiogenin induces vascularization of normal and malignant tissues. Angiogenic activity is regulated by interaction with RNH1 in vivo.
[1]Sequence of the cDNA and gene for angiogenin, a human angiogenesis factor.Kurachi K., Davie EW., Strydom D.J., Riordan J.F., Vallee B.L.Biochemistry 24:5494-5499(1985) [2]Diversifying selection of the tumor-growth promoter angiogenin in primate evol