Abstract
Antiogenin is a potent blood vessel-inducing polypeptide that has a unique ribonucleolytic activity. Initially identified from tumor cells conditioned medium through its ability to induce neovascularization in the chick embryo chorioallantoic membrane assay [1], angiogenin has also been purified from normal plasma [2] which suggested that it might be involved in endothelium homeostasis. Angiogenin is highly homologous to pancreatic ribonuclease A with 68% amino acid sequence homology and conserved essential active site residues [3]. However, angiogenin is inactive in standard ribonuclease assays but has a ribonucleolytic specificity toward ribosomal and transfer RNAs [4]. This enzymic activity might be relevant to the process of angiogenesis since a functional active site seems necessary for the expression of its angiogenic property [5]; however, it appears not to be sufficient [6].
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© 1992 Birkhäuser Verlag Basel/Switzerland
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Badet, J., Soncin, F., Barritault, D. (1992). Angiogenin and endothelial cells. In: Steiner, R., Weisz, P.B., Langer, R. (eds) Angiogenesis. Experientia Supplementum, vol 61. Birkhäuser, Basel. https://doi.org/10.1007/978-3-0348-7001-6_36
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DOI: https://doi.org/10.1007/978-3-0348-7001-6_36
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