Active Complement Factor B (CFB) Homo sapiens (Human) Active protein

CF-B; BF; BFD; CFAB; GBG; H2-Bf; PBF2; B-Factor; Properdin; Properdin factor B; C3/C5 convertase; Glycine-rich beta glycoprotein

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Overview
Properties
  • Buffer Formulation20mM Tris, 150mM NaCl, pH8.0, containing 1mM EDTA, 1mM DTT, 0.01% SKL, 5% Trehalose and Proclin300.
  • Traits Freeze-dried powder, Purity > 90%
  • Isoelectric Point6.7
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  • Active Complement Factor B (CFB) Packages (Simulation)
  • Active Complement Factor B (CFB) Packages (Simulation)
  • Active Complement Factor B (CFB) Figure. Gene Sequencing (Extract)
  • APC011Hu03.jpg Figure. SDS-PAGE
  • Active Complement Factor B (CFB) Figure. Western Blot
  • Certificate ISO9001: 2008, ISO13485: 2003 Registered

Activity test

Complement Factor B (CFB) a component of the alternative pathway of complement activation. Upon activation of the alternative pathway, it is cleaved by complement factor D yielding the noncatalytic chain Ba and the catalytic subunit Bb. The active subunit Bb is a serine protease that associates with C3b to form the alternative pathway C3 convertase. The method of functional assay of CFB was tested in hemolysis assays. Two-fold dilute the recombinant human CFB with 0.9% NaCl, 2mmol/L MgCl2 ,and then add same volume of 1% rabbit erythrocyte (RaE) in 8mmol/L EDTA, the negative control only without MgCl2. All the samples incubated at 37℃. After 3 hours later, take 10μL supernatant and 90μL TMB incubated at 37℃ for 5-10 minutes. Finally, add 50µL stop solution to the wells and read at 450nm immediately. The results are shown in Figure 1. It was obvious that the minimal effective concentration of CFB is 0.3125μg/mL.(A) 1% rabbit erythrocyte (RaE) treated with 0.3125μg/mL CFB for 1h
(B) Negative control (1% RaE treated with 0.3125ug/mL CFB, 8mmol/L EDTA) without MgCl2.
Figure. The hemolysis effection of recombinant human CFB

Figure. The hemolysis activity of recombinant human CFB

Usage

Reconstitute in 20mM Tris, 150mM NaCl (pH8.0) to a concentration of 0.1-1.0 mg/mL. Do not vortex.

Storage

Avoid repeated freeze/thaw cycles. Store at 2-8°C for one month. Aliquot and store at -80°C for 12 months.

Stability

The thermal stability is described by the loss rate. The loss rate was determined by accelerated thermal degradation test, that is, incubate the protein at 37°C for 48h, and no obvious degradation and precipitation were observed. The loss rate is less than 5% within the expiration date under appropriate storage condition.

Citations

  • Complement in patients receiving maintenance hemodialysis: functional screening and quantitative analysisBioMed: 14712369
  • Identification and Confirmation of Differentially Expressed Fucosylated Glycoproteins in the Serum of Ovarian Cancer Patients Using a Lectin Array and LC–MS/MSACS: pr300330z
  • Atypical hemolytic uremic syndrome: Korean pediatric seriesPubMed: 25443527
  • Acute and prolonged complement activation in the central nervous system during herpes simplex encephalitisPubmed:27235358
  • Adipose tissue complement factor B promotes adipocyte maturation.pubmed:29137982
  • Serum exosomes from newborn piglets restrict porcine epidemic diarrhea virus infection
  • Identification of susceptibility locus shared by IgA nephropathy and inflammatory bowel disease in a Chinese Han populationPubmed: 31857673
  • Association between thrombotic microangiopathy and activated alternative complement pathway in malignant nephrosclerosis33367879
  • Changes in complement alternative pathway components, factor B and factor H during dengue virus infection in the AG129 mouse33410734
  • Early Diagnostic Ability of Human Complement Factor B in Pancreatic Cancer Is Partly Linked to Its Potential Tumor-Promoting Role34766501
  • A Three-Protein Panel to Support the Diagnosis of Sepsis in ChildrenPubmed:35329889

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