The amount of a E3 ubiquitin-protein ligase CCNB1IP1 (human) when measured in cerebrospinal fluid. The trait is level of E3 ubiquitin-protein ligase CCNB1IP1 (human) in cerebrospinal fluid (Ontology of Biological Attributes term OBA_2081141). Also known as: cerebrospinal fluid E3 ubiquitin-protein ligase CCNB1IP1 (human) amount.