Enzyme inhibitor protease in a complex with the protease inhibitor ritonavir . The structure of the protease is shown by the red, blue and yellow ribbons. The inhibitor is shown as the smaller ball-and-stick structure near the centre. Created from PDB 1HXW .
Enzyme inhibitors are molecule s that more
Chromatophore chromatophores mediate background adaptation on exposure to dark (top) and light environments (bottom).
Chromatophores are pigment -containing and light-reflecting cells found in amphibian s, fish , reptile s, crustacean s, and cephalopod s. They are largely responsible for generati more
Georg Forster , 1781
Johann Georg Adam Forster (November 27 1754 Many sources, including the biography of Thomas Saine, list the birthdate as November 26 ; according to Ulrich Enzensberger, Ein Leben in Scherben, Frankfurt 1996, ISBN 3-423-13248-5, the baptism registry of St Peter in Danzig list more
Asthma
Asthma is a chronic condition involving the respiratory system in which the airway occasionally constricts, becomes inflamed , and is lined with excessive amounts of mucus , often in response to one or more triggers. These episodes may be triggered by such things as exposure to an envir more
Enzyme
of the enzyme TIM , surrounded by the space-filling model of the protein. TIM is an extremely efficient enzyme involved in the process that converts sugar s to energy in the body.
Enzymes are protein s that catalyze (i.e. accelerate ) chemical reaction s. In enzymatic reactions, the molec more