Multiple choice

Complement component 3 is a prominent protein of the immune system contributing to the innate immunity. It is cleaved by

  1. C3b

  2. C3bBb

  3. Factor B

  4. Factor D

  5. Factor H
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the C3 convertase enzyme generated in the alternative complement pathway and is responsible for splitting the small peptide C3a, leaving C3b as a residue.

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