Angiogenin (ANG) Protein

Background

Angiogenin (ANG) is a protein that plays a significant role in angiogenesis. It is a member of the ribonuclease superfamily, but unlike other members that primarily function in RNA degradation, angiogenin has distinct functions related to blood vessel formation and tissue repair. The primary role of angiogenin is to promote the growth of new blood vessels from existing ones. This is crucial in processes like wound healing, embryonic development, and tissue regeneration. Angiogenin has ribonuclease activity, meaning it can cleave RNA molecules. However, its angiogenic activity is independent of this enzymatic function. Angiogenin acts on endothelial cells, which line the inside of blood vessels. It stimulates these cells to proliferate, migrate, and form new blood vessels. It also promotes cell survival and protects cells from apoptosis (programmed cell death), which is important for the stability of newly formed blood vessels.