Ontology of Biological Attributes id OBA_2058770 (level of Rho guanine nucleotide exchange factor 7 (human) in cerebrospinal fluid) is the amount of a Rho guanine nucleotide exchange factor 7 (human) when measured in cerebrospinal fluid. Also known as: cerebrospinal fluid Rho guanine nucleotide exchange factor 7 (human) amount.