level of beta-galactoside alpha-2,6-sialyltransferase 2 in blood serum (OBA_2043674, an Ontology of Biological Attributes entry) is the amount of a beta-galactoside alpha-2,6-sialyltransferase 2 when measured in blood serum. Also known as: blood serum beta-galactoside alpha-2,6-sialyltransferase 2 amount.