Screening of pig glycosyltransferase genes related to xenoantigens and their masking.- Cloning and tissue specific expression of pcmah and its alternative transcripts.- Functional characterization of pCMAH in the synthesis of N-glycolylneuraminic acid as the xenoantigenic determinant in pig-to-human xenotransplantation.- Identification of two alternative promoters of the pig CMP-N-acetylneuraminic acid hydroxylase gene.- Screening for xenoantigenic...