### substance | activator | enzyme | kinase:

Pyruvate kinase
* clears intermediates out of the pathway.
* is another important regulated enzyme of glycolysis
  - required for glycolysis
  - the enzyme in glycolysis that catalyzes the final step of glycolysis
* key regulatory enzyme in the metabolism of sugar.

Tyrosine kinase
* are a class of enzymes that are implicated in a range of cancers.
* is an enzyme required for tumor growth
  - that is required for most tumor cell proliferation
  - protein kinase
  - proteins
* play a permissive role in glucose-induced insulin secretion from adult rat islets.

### substance | activator | enzyme:

Lipase
* are a group of enzymes already frequently used as catalysts
  - that break dietary fat down into smaller units
  - also present in breast milk
* are enzymes that catalyze the hydrolysis of fats and oils to free fatty acids and glyserol
  - hydrolyze esters of long chain fatty acids
  - essential for the digestion , transport and processing of lipids in the diet
  - normally present in raw milk, but are inactivated during pasteurization
  - used in the degreasing operation to hydrolyze fat particles embedded in the skin
* attack the bond between the glycerol molecule oxygen and the fatty acid.
* digest lipids.
* includes atoms.
* includes chemical chain
  - groups.
  * are essential for the digestion, transport and processing of lipids in the diet. Genes coding for lipases are even present in certain viruses
* rises later in serum than does amylase so it is secondary test for pancreatitis.
* works only on fats.

### substance | activator | enzyme | lipase:

Pancreatic lipase
* breaks down triglycerides into free fatty acids and monoglycerides.
* is the enzyme that digests fat
  - main enzyme in the digestive tract
* removes fatty acids from blood lipoproteins.

Lysozyme
* are enzymes
  - hydrolytic enzymes that are capable of degrading bacterial cell walls
* binds to elastin and protects elastin from elastase-mediated degradation.
* cleaves bonds between the subunits of cell wall polysaccharides in bacteria.
* destroys cell wall of gram-positive bacteria.
* forms tetragonal crystals.
* gains access to peptidoglycan and completes destruction of the bacterial cell.

### substance | activator | enzyme:

Monoamine oxidase
* breaks down serotonin, so inhibitors of the enzyme make more serotonin available.
* catalyze the oxidative deamination of monoamines.
* complex enzyme system, widely distributed throughout the body.
  - involved in the metabolism of biogenic amines
  - that is found in many parts of the body
  - which acts to destroy certain neurotransmitters such as dopamine
  - described as a complex enzyme system, widely distributed throughout the body
* requires an adequate supply of oxygen to function properly.

Natural enzyme
* Most natural enzymes use energy
  - solar energy
* are protein-based materials which break down complex organic molecules.
* work to help the body, but the enzymes in snake venom have harmful effects.

Nitrogenase
* catalyzes nitrogen fixation, an important yet energetically expensive process
  - several reactions in addition to the reduction of nitrogen to ammonia
* is an enzyme

Nuclease
* are classes of enzymes that degrade nucleic acids
  - enzymes that break down nucleic acid molecules
  - phosphoidesterases with a tremendous variability in their substrate requirements
* hydrolyze the nucleic acids e.

### substance | activator | enzyme | nuclease:

Endonuclease
* are enzymes that cut DNA at specific sites defined by nucleotide base sequences
  - potentially lethal weapons
* cleave internal phosphodiester bonds.
* is nuclease