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CFB ELISA Kit (Human) : 96 Wells (OKEH01427)

96 Wells
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Predicted Species Reactivity:
Kit Detection Method:
Colorimetric, OD450 nm
Kit Duration:
~ 3 Hours
Kit Principle:
Aviva Systems Biology CFB ELISA Kit (Human) (OKEH01427) is based on standard sandwich enzyme-linked immuno-sorbent assay technology. An antibody specific for CFB has been pre-coated onto a 96-well plate (12 x 8 Well Strips) and blocked. Standards or test samples are added to the wells, incubated and removed. A biotinylated detector antibody specific for CFB is added, incubated and followed by washing. Avidin-Peroxidase Conjugate is then added, incubated and unbound conjugate is washed away. An enzymatic reaction is produced through the addition of TMB substrate which is catalyzed by HRP generating a blue color product that changes yellow after adding acidic stop solution. The density of yellow coloration read by absorbance at 450 nm is quantitatively proportional to the amount of sample CFB captured in well.
Kit Range:
0.625 - 40ng/mL
Kit Recovery:
Mean recovery when spiking into sample matrices at concentrations within the dynamic range: 86%
Kit Reproducibility:
Mean Intra-assay CV%: < 5.4% (n = 20)
Mean Inter-assay CV%: < 7.6% (n = 20)
Kit Component:
CFB Microplate96 Wells (12 x 8 Well strips)
CFB Lyophilized Standard2
100X Biotinylated CFB Detector Antibody1 x 120 uL
100X Avidin-HRP Conjugate1 x 120 uL
Sample Diluent1 x 20 mL
Detector Antibody Diluent1 x 12 mL
Conjugate Diluent1 x 12 mL
25X Wash Buffer1 x 30 mL
TMB Substrate1 x 10 mL
Stop Solution1 x 10 mL
Reconstitution and Storage:
Store as indicated in product manual.
Gene Symbol:
Official Gene Full Name:
complement factor B
Alias Symbols:
AHUS4, BF, BFD, C3/C5 convertase, CFAB, Complement factor B, FB, FBI12, GBG, Glycine-rich beta glycoprotein, H2-Bf, PBF2, Properdin factor B
NCBI Gene Id:
Protein Name:
Complement factor B
Description of Target:
Factor B which is part of the alternate pathway of the complement system is cleaved by factor D into 2 fragments: Ba and Bb. Bb, a serine protease, then combines with complement factor 3b to generate the C3 or C5 convertase. It has also been implicated in proliferation and differentiation of preactivated B-lymphocytes, rapid spreading of peripheral blood monocytes, stimulation of lymphocyte blastogenesis and lysis of erythrocytes. Ba inhibits the proliferation of preactivated B-lymphocytes.
Swissprot Id:
Protein Accession #:
Nucleotide Accession #:
Sample Type:
Serum, Plasma, Tissue homogenates, Cell culture supernates, Other biological fluids
0.297 ng/mL
Tissue Tool:
Find tissues and cell lines supported by DNA array analysis to express CFB.
RNA Seq:
Find tissues and cell lines supported by RNA-seq analysis to express CFB.
Click here to download product manual. As variation between lots may occur, always reference the lot-specific manual received with each kit.
Natural and recombinant Human Complement factor B
Assay Info:
Assay Methodology: Quantitative Sandwich ELISA
Molecular Weight:
86 kDa
Protein Size (# AA):

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273/10/2019 00:19
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Using Aviva kit to measure CFB levels in blood

This is Jieun Park in South Korea.

We purchased Aviva's CFB ELISA kit to measure human CFB levels in plasma.

After a preilminary study to confirm the dilution factor, we set dilution factors as 1:30,000.

Due to the dilution factor, we request more sample diluent (they only provided 1X sample diluent, 10ml) and  Aviva provide it. 

So, we could finish the test and thankfully get results as we expected. 

Thank you for all your support :)


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