THE COMPLEMENT SYSTE1

THE COMPLEMENT SYSTE1 - THECOMPLEMENTSYSTEM

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
THE COMPLEMENT SYSTEM   The complement system consists of about 30 different proteins found in an inactive form in the  blood plasma. The system is made up of the following proteins: C1 - C9 Factor B Factor D Factor P (properdin)     The proteins may be activated in one of three ways:    1. Classical pathway---an immune reaction between antigens and antibodies. When antigens  and antibodies bind together, this results in the activation of the complement protein C3.     2. Alternative pathway---direct interaction between polysaccharides found in the cell walls of  certain bacteria and fungi, as well as the surface of some foreign mammalian red blood cells,  with three of the complement proteins, Factors B, D, and P. This also leads to the activation of  C3. This pathway is particularly important in responding to gram-negative bacteria that live in 
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 2

THE COMPLEMENT SYSTE1 - THECOMPLEMENTSYSTEM

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online