CFD Human

CFD Human

  • Name
  • Description
  • Cat#
  • Pricings
  • Quantity
  • CFD Human

  • Complement Factor D Human
  • PRO-2699
  • Shipped with Ice Packs

Catalogue number



Complement factor D, Adipsin, C3 convertase activator, Properdin factor D, CFD, DF, PFD.


CFD is an important component of the alternative pathway of complement activation. CFD cleaves and activates factor B when it binds C3b or a C3b-like protein such as C3 or CVF. CFD is a serine protease that exists as a mature protease, but it exhibits a highly restricted specificity and it appears to be substrate activated. CFD cleaves factor B bound to C3b leading to the release of the Ba fragment and leaving the Bb fragment bound to C3b. The C3b,Bb complex is called a C3 or C5 convertase because it converts these proteins to their active forms by cleaving off the small peptides C3a and C5a, respectively.


Human Complement Factor D produced in Human plasma is glycosylated polypeptide chain having a total molecular mass of 24kDa.


Human Plasma.

Physical Appearance

Sterile filtered solution.


CFD protein solution contains 10mM Sodium phosphate and 145mM NaCl, pH 7.3.


CFD Human is stable at 4°C if entire vial will be used within 2-4 weeks.
Store, frozen below -20°C for longer periods of time.
For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
Avoid multiple freeze-thaw cycles.


Greater than 95.0% as determined by SDS-PAGE.

Human Virus Test

Plasma from each donor has been tested and found negative for antibody to HIV-1, HIV-2, HCV and HBSAG.

Safety Data Sheet


ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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