Ontology of Biological Attributes id OBA_2058298 (level of Ras-related protein R-Ras2 (human) in cerebrospinal fluid) is the amount of a Ras-related protein R-Ras2 (human) when measured in cerebrospinal fluid. Also known as: cerebrospinal fluid Ras-related protein R-Ras2 (human) amount.