6 Different Classes Of Enzymes Flashcards

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1
Q

What are the 6 different classes of enzymes and how to remember them?

A

LI’L HOT

Ligase
Isomerase
Lyase
Hydrolase
Oxidoreductase
Transferase
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2
Q

Ligase

A

Joining 2 large biomolecules, often the same one
Often required ATP
ex: synthetase

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3
Q

Isomerase

A

Catalyzes the interconversion of isomers, including both constitutional isomers and stereoisomers

ex: fumarase, phosphohexose isomerase
- same chemical formula but different structure

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4
Q

Lyase

A

Cleavage of a single molecule into two products, or synthesis of small organic molecules

  • Without the addition of water or transfer of electrons
  • ex: synthase
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5
Q

Hydrolase

A

Breaking of a compound into two molecules using the addition of water
ex: lipases, pepsin, amylase, peptidase, nuclease (breaking biomolecules) (digestive enzymes)

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6
Q

Oxidoreductase

A

Oxidation and reduction reactions which involves transfer of electrons
-ex: NAD+ to NADP
Dehydrogenase, reductase, oxidase

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7
Q

Transferase

A

Movement of functions group from one molecule to another

ex: kinases, phosphatase

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