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.
Rainbow did not mention nothing about a $2900 vacuum costing $4000. We got the Rainbow and were told it was going to $2900 total. Come to find out a month later that the company took a loan out for $4000 for the vacuum. I did not consent to a $4000 loan being taken out for a vacuum. I could have gotten the same product for less than $1000 online.