catalyst

a biochemical catalyst such as an enzyme

any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions

an enzyme found in mammals that can catalyze the deamination of adenosine into inosine and ammonia

any of a group of proteins found in saliva and pancreatic juice and parts of plants; help convert starch to sugar

an enzyme that hydrolyses acetylcholine (into choline and acetic acid)

an enzyme that induces coagulation

any enzyme that catalyzes the hydrolysis of collagen and gelatin

one of a series of enzymes in the blood serum that are part of the immune response

enzyme found in most plant and animal cells that functions as an oxidative catalyst; decomposes hydrogen peroxide into oxygen and water

either of two related enzymes that control the production of prostaglandins and are blocked by aspirin

any of the enzymes that hydrolize the carboxyl group

an enzyme that removes the iodine radical

an enzyme that catalyzes the hydrolysis of disaccharides into monosaccharides

a pancreatic enzyme that catalyzes the hydrolysis of elastin

enzyme in the intestinal juice that converts inactive trypsinogen into active trypsin

enzyme that acts as a catalyst in converting histidine to histamine

an enzyme (trade name Hyazyme) that splits hyaluronic acid and so lowers its viscosity and increases the permeability of connective tissue and the absorption of fluids

an enzyme that catalyzes its substrate to an isomeric form

an enzyme that catalyzes the conversion of a proenzyme to an active enzyme

an enzyme secreted in the digestive tract that catalyzes the breakdown of fats into individual fatty acids that can be absorbed into the bloodstream

an enzyme found in saliva and sweat and tears that destroys the cell walls of certain bacteria

an enzyme that catalyzes the oxidation of many body compounds (e.g., epinephrine and norepinephrine and serotonin)

an enzyme of nitrogen-fixing microorganisms that catalyzes the conversion of nitrogen to ammonia

general term for enzymes that catalyze the hydrolysis of nucleic acid by cleaving chains of nucleotides into smaller units

any of the enzymes that catalyze biological oxidation

an enzyme that catalyzes oxidation-reduction

a proteolytic enzyme obtained from the unripe papaya; used as a meat tenderizer

enzyme produced by certain bacteria that inactivates penicillin and results in resistance to that antibiotic

an enzyme produced in the stomach that splits proteins into peptones

precursor of pepsin; stored in the stomach walls and converted to pepsin by hydrochloric acid in the stomach

any of a group of enzymes that act as a catalyst in the hydrolysis of organic phosphates

an enzyme that dissolves the fibrin of blood clots

an enzyme that catalyzes the formation of new DNA and RNA from an existing strand of DNA or RNA

any enzyme that catalyzes the splitting of proteins into smaller peptide fractions and amino acids by a process known as proteolysis

an enzyme that catalyses the biochemical reduction of some specified substance

an enzyme that occurs in gastric juice; causes milk to coagulate

a set of enzymes believed to snip pieces off a longer protein producing fragments of amyloid protein that bunch up and create amyloid protein plaques in brain tissue (the pathological hallmark of Alzheimer's)

an enzyme produced by some hemolytic strains of streptococcus that dissolves fibrinous secretions from infections; used medicinally (often in combination with streptokinase)

an enzyme produced by some strains of streptococcus that can liquefy blood clots by converting plasminogen to plasmin; used medicinally in some cases of myocardial infarction and pulmonary embolism

an enzyme that catalyzes the conversion of superoxide into hydrogen peroxide and oxygen

an enzyme in eukaryotic cells that can add telomeres to the ends of chromosomes after they divide

any of various enzymes that move a chemical group from one compound to another compound

an enzyme of pancreatic origin; catalyzes the hydrolysis of proteins to smaller polypeptide units

an enzyme that catalyzes the hydrolysis of urea into carbon dioxide and ammonia; is present in intestinal bacteria

a complex of enzymes that cause glycolysis; originally found in yeast but also present in higher organisms

a fine black powder of platinum; used as a catalyst in chemical reactions