<;P>;PROBLEM TO BE SOLVED: To provide a means for mass-producing a mucin type sugar chain-bound peptide or protein in a yeast. <;P>;SOLUTION: Any one or two or more selected from a gene encoding a UDP (uridine 5'-diphosphate)-GalNAc (N-acetylgalactosamine) synthase, a gene encoding a UDP-GalNAc transporter and a gene encoding a polypeptide O-GalNAc transferase and, as desired, a gene encoding a mucin type sugar chain-bound protein are transferred into the yeast. The resultant yeast is used to produce the mucin type sugar chain-bound protein. <;P>;COPYRIGHT: (C)2008,JPO&INPIT