level of Arf-GAP with GTPase, ANK repeat and PH domain-containing protein 2 in blood serum (OBA_2040533, an Ontology of Biological Attributes term) is the amount of a Arf-GAP with GTPase, ANK repeat and PH domain-containing protein 2 when measured in blood serum. Also known as: blood serum Arf-GAP with GTPase, ANK repeat and PH domain-containing protein 2 amount.