level of eukaryotic peptide chain release factor GTP-binding subunit ERF3B in blood serum (OBA_2041799, an Ontology of Biological Attributes identifier) is the amount of a eukaryotic peptide chain release factor GTP-binding subunit ERF3B when measured in blood serum. Also known as: blood serum eukaryotic peptide chain release factor GTP-binding subunit ERF3B amount.