Ontology of Biological Attributes entry OBA_2081875 (level of heparan sulfate glucosamine 3-O-sulfotransferase 4 (human) in cerebrospinal fluid) is the amount of a heparan sulfate glucosamine 3-O-sulfotransferase 4 (human) when measured in cerebrospinal fluid. Also known as: cerebrospinal fluid heparan sulfate glucosamine 3-O-sulfotransferase 4 (human) amount.