The amount of a SH3 domain-binding glutamic acid-rich-like protein 2 when measured in blood serum. The trait is Ontology of Biological Attributes id OBA_2044465 (level of SH3 domain-binding glutamic acid-rich-like protein 2 in blood serum). Also known as: blood serum SH3 domain-binding glutamic acid-rich-like protein 2 amount.