GTPase Activating Protein (GAP) is a crucial protein that regulates the activity of GTPases, enzymes involved in cellular signaling pathways. However, there are different synonymous terms used to refer to this protein. One alternative term frequently used is GTPase-activating protein. This term emphasizes the role of the protein in activating the GTPase enzyme. Another synonym is GTPase activating protein 1 (GAP-1), highlighting the potential existence of multiple isoforms or subtypes. Additionally, GTPase regulatory protein is another synonymous term, emphasizing its role in regulating the GTPase enzyme's function. These various synonyms reflect the diverse nomenclature used within scientific literature to describe this essential protein involved in crucial cellular processes.