Ontology of Biological Attributes entry OBA_2041350 (level of 2-(3-amino-3-carboxypropyl)histidine synthase subunit 2 in blood serum) is the amount of a 2-(3-amino-3-carboxypropyl)histidine synthase subunit 2 when measured in blood serum. Also known as: blood serum 2-(3-amino-3-carboxypropyl)histidine synthase subunit 2 amount.