Non-competitive inhibition (by regulatory molecules)

Inhibitor temporarily changes the enzyme, altering the enzyme's relative affinity for the substrate. This mechanism provides cells with a mechanism to control the activity of allosteric enzymes.

Non-competitive inhibition (by enzyme poisons)

Inhibitor permanently changes the enzyme, rendering the enzyme non-functional. Enzyme poisons such as mercury are used in certain antimicrobial compounds.

Competitive inhibition

Inhibitor binds to the active site of the enzyme, obstructing the access of the substrate. Competitive inhibitors such as sulfa drugs are used as antibacterial medications.

Nester-Anderson-Roberts: I. Life and Death of 6. Metabolism: Fueling Cell © The McGraw-Hill

Microbiology, A Human Microorganisms Growth Companies, 2003

Perspective, Fourth Edition

Chapter 6 Metabolism: Fueling Cell Growth

^PABA (substrate)

Sulfa (inhibitor)

/ Sulfa molecules Sulfa more likely to

(inhibitor) bind to enzyme

Was this article helpful?

0 0
Getting Rid Of Warts Forever

Getting Rid Of Warts Forever

All wart sufferers, this is the day to stop the shame. How I Got Rid Of My Warts Forever and How You Can Get Rid Of Warts Naturally In 3 Days. With No Blisters, No Scars, And No Pain Without medications or expensive procedures. All by applying a simple, very natural and unbelievable FREE substance that can be found in almost every household.

Get My Free Ebook

Post a comment