Glycosylation of the tandem repeat unit of the MUC2 polypeptide leading to the synthesis of the Tn antigen

被引:15
作者
Inoue, M [1 ]
Yamashina, I [1 ]
Nakada, H [1 ]
机构
[1] Kyoto Sangyo Univ, Fac Engn, Dept Biochem, Kita Ku, Kyoto 603, Japan
关键词
D O I
10.1006/bbrc.1998.8369
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
A synthetic peptide corresponding to the human MUC2 tandem repeat domain containing 14 Thr residues was glycosylated in vitro using UDP-GalNAc and microsomal membranes of the colorectal cancer cell line, LS180, The products were fractionated by reverse phase HPLC, which gave seven glycopeptide fractions. Their molecular weights were estimated by matrix-assisted laser desorption/ionization mass spectrometry, the values obtained corresponding to glycopeptides containing from one to ten GalNAc residues. On solid phase radioimmunoassaying involving a monoclonal anti-Tn antibody (MLS128), it was found that the glycopeptides containing nine or ten GalNAc residues were strongly immunoreactive, whereas the glycopeptides containing less than six GalNAc residues were inactive, indicating that a cluster of GalNAc-Thr is essential for the Tn antigenicity. (C) 1998 Academic Press.
引用
收藏
页码:23 / 27
页数:5
相关论文
共 15 条
[1]   cDNA cloning and expression of a novel human UDP-N-acetyl-alpha-D-galactosamine - Polypeptide N-acetylgalactosaminyltransferase, GalNAc-T3 [J].
Bennett, EP ;
Hassan, H ;
Clausen, H .
JOURNAL OF BIOLOGICAL CHEMISTRY, 1996, 271 (29) :17006-17012
[2]  
BLOOM EJ, 1990, COLON CANCER CELLS, P429
[3]  
CARLSON DM, 1968, J BIOL CHEM, V243, P616
[5]   PRODUCTION OF MONOCLONAL-ANTIBODIES DIRECTED AGAINST CARBOHYDRATE MOIETIES OF CELL-SURFACE GLYCOPROTEINS [J].
FUKUI, S ;
NUMATA, Y ;
KUROSAKA, A ;
KITAGAWA, H ;
NAKADA, H ;
FUNAKOSHI, I ;
KAWASAKI, T ;
TAKAHASHI, Y ;
HAYASHI, K ;
YAMASHINA, I .
JAPANESE JOURNAL OF CANCER RESEARCH, 1988, 79 (10) :1119-1129
[6]  
INOUE M, 1994, CANCER RES, V54, P85
[7]  
LAPPOLA A, 1994, BIOL MASS SPECTROM, V23, P241
[8]   Complexity in O-linked oligosaccharide biosynthesis engendered by multiple polypeptide N-acetylgalactosaminyltransferases [J].
Marth, JD .
GLYCOBIOLOGY, 1996, 6 (07) :701-705
[9]   SYNTHESIS AND SECRETION OF MUCIN BY THE HUMAN COLONIC TUMOR-CELL LINE LS180 [J].
MCCOOL, DJ ;
FORSTNER, JF ;
FORSTNER, GG .
BIOCHEMICAL JOURNAL, 1994, 302 :111-118
[10]   REGULATED AND UNREGULATED PATHWAYS FOR MUC2 MUCIN SECRETION IN HUMAN COLONIC LS180 ADENOCARCINOMA CELLS ARE DISTINCT [J].
MCCOOL, DJ ;
FORSTNER, JF ;
FORSTNER, GG .
BIOCHEMICAL JOURNAL, 1995, 312 :125-133