e/Colton antigen system

Information
has gloss	eng: The Colton antigen system (Co) is present on the membranes of red blood cells and in the tubules of the kidney and helps determine a person's blood type. The Co antigen is found on a protein called aquaporin-1 which is responsible for water homeostasis and urine concentration.
lexicalization	eng: Colton antigen system
instance of	(noun) human blood cells (usually just the red blood cells) that have the same antigens blood type, blood group