An information processing apparatus capable of being opened and closed includes storage means, display means, and taken image display control means. Contact members are arranged in the housing and held pivotably on the housing. The formulation of arginine \u03b1-ketoglutarate and excipient material is designed to obtain a desired result, e. That is, it is possible to reliably instruct the warning unit to supply the warning to the driver when the vehicle deviates from the current driving lane against the driver’s will. Each shelf is interchangeable between a plurality of different configurations, with a first configuration changeable to a second configuration by pivoting movement of one or more portions of the shelf between a stored position and an operational or display position. Such enzymes expand the variety of substrates that can be used in enzymatic glycosylation methods, including enzymatic glycorandomization, thereby providing increased diversity in chemical products.