In biology, the active site is the region of an enzyme where substrate molecules bind and undergo a chemical reaction. The active site consists of residues that form temporary bonds with the substrate (binding site) and residues that catalyse a reaction of that substrate (catalytic site).
Seattle is rolling out 11 rainbow crosswalks in Capitol Hill this week, adding a colorful bang to the annual Pride celebration. The crosswalks cost the city $66,000, said Seattle Department of Transportation spokesman Rick Sheridan, and are permanent.
At Carriage Crossing, a new âultra-luxuryâ development in east Waterloo, fees cover a 24-hour concierge, multiple gyms and pools, spa rooms and a yoga studio. The owner of a 1,000 square foot condo at the development can expect to pay around $400 in fees for the lifestyle. But it comes with a promise from the builder not to raise the fees during the phased-in construction period.