Fig. 3B: Cleavage of C2 by C1 during 
    the Classical Complement Pathway - Step 2 
  
C2 binds to the C4b   and the enzyme C1 subsequently cleaves C2 into C2a and C2b. The C4b2a functions as a C3 convertase that   can enzymatically cleave hundreds of molecules of C3 into C3a and C3b.
    
  
Cleavage of C2 by C1 during the Classical Complement Pathway - Step 2 .jpg by Gary E. Kaiser, Ph.D. 
     Professor of Microbiology, 
      The Community College of Baltimore County, Catonsville Campus
      This work is licensed under a Creative Commons Attribution 4.0 International License.
     Based on a work at https://cwoer.ccbcmd.edu/science/microbiology/index_gos.html..

Last updated: August, 2019
  Please send comments and inquiries to Dr. 
    Gary Kaiser