Sport touring motorcycle sportbikes were redefined (for marketing purposes) as sport touring bikes: the 2000 Kawasaki ZX-6R sportbike became the 2004 ZZR600 with just a change to a fairing bracket. Sport touring motorcycle A sport touring motorcycle (sometime a "sports-tourer") is a type of motorcycle that combines the performance of a sport bike with the long-distance capabilities and comfort of a touring motorcycle. The first sport-tourer is said to be the fully faired 1977 BMW R100RS. Journalist Peter Egan defines the sport-tourer as a "café racer that doesn't hurt your wrists and a touring bike that doesn't feel like a tank," and identified
Beta-propeller four beta-strands in a sheet, beta-lactamase inhibitor protein-II only has three beta-strands per sheet while the phytase of "bacillus subtilis" has five beta-strands per beta-sheet. Due to its structure and plasticity, protein-protein interactions can form with the top, bottom, central channel, and side faces of the beta-propeller. The function of the propeller can vary based on the blade number. Four-bladed beta-propellers function mainly as transport proteins, and because of its structure, they have a conformation that is favorable for substrate binding. Unlike larger beta-propellers, four-bladed beta-propellers usually cannot perform catalysis themselves, but act instead to aid in catalysis by performing