Breast Neoplasms Carbon Radioisotopes Female Glucosyltransferases Glycoproteins Guanosine Diphosphate Mannose Hexosyltransferases Human Kinetics Mannosyltransferases Microsomes Nucleoside Diphosphate Sugars Polyisoprenyl Phosphate Oligosaccharides Support, Non-U.S. Gov't Uridine Diphosphate Glucose Uridine Diphosphate Sugars article biosynthesis breast tumor carbon diagnostic agent enzymology female glucosyltransferase glycoprotein glycosyltransferase guanosine diphosphate mannose human isoprenoid phosphate sugar kinetics