NCIt definition : Cobalamin binding intrinsic factor (417 aa, 45 kDa) is encoded by the human CBLIF
gene. This protein is involved in the absorption of cobalamin into cells of the digestive
tract.;
Alternative definition : CDISC: A glycoprotein encoded by the CBLIF gene, produced by the parietal cells in
the stomach, and is necessary for the absorption of vitamin B12 (cobalamin) in the
distal ileum of the small intestine. It can be considered as an autoantigen and is
commonly associated with the autoimmune disease pernicious anemia.;