Utilization of Microbial Enzyme for Production of Glycoprotein and for Analysis of Intracellular Mechanism: Preparation of Glycoprotein and Clarification of Intracellular Response by Using Microbial Glycoside Hydrolases: 微生物の糖質分解酵素を利用した糖タンパク質調製法の開発と細胞応答機構の解明