ENZYMATIC MODIFICATION OF CELL-SURFACE H ANTIGEN BY GLYCOSYLTRANSFERASES

摘要

This invention relates to cells with modified blood group antigen expression of the ABO group phenotype. It relates to the enzymatic modification of cell-surface H antigen, by the addition of one or more monosaccharide units generating cells which are serologically equivalent to A or B antigen red blood cells and uses thereof in haematology, immuno-haematology and immunology assays as serology controls.