• Product name

    Human Complement H ELISA Kit
    See all Factor H kits
  • Detection method

  • Precision

    Sample n Mean SD CV%
    1 16 2.32ng/ml 0.12 5.2%
    2 16 8.15ng/ml 0.47 5.8%
    3 16 37.66ng/ml 2.37 6.3%
    Sample n Mean SD CV%
    1 24 2.01ng/ml 0.13 6.9%
    2 24 9ng/ml 0.56 6.3%
    3 24 45.39ng/ml 3.22 7.1%
  • Sample type

    Cell culture supernatant, Urine, Serum, Plasma, Hep Plasma, EDTA Plasma
  • Assay type

    Sandwich (quantitative)
  • Sensitivity

    < 50 pg/ml
  • Range

    1.56 ng/ml - 100 ng/ml
  • Assay time

    3h 30m
  • Assay duration

    Multiple steps standard assay
  • Species reactivity

    Reacts with: Human
  • Product overview

    The Human Complement H Enzyme-Linked Immunosorbent Assay (ELISA) kit (ab213765) is designed for the quantitative measurement Human Complement H/CFH in cell culture supernatants, serum, plasma (heparin, EDTA) and urine.

    The kit is based on standard sandwich enzyme-linked immune-sorbent assay technology. A monoclonal antibody from mouse specific for Complement H/CFH has been pre-coated onto 96-well plates. Standards and test samples are added to the wells, a biotinylated detection polyclonal antibody from goat specific for Complement H/CFH is added subsequently and then followed by washing with PBS or TBS buffer. Avidin-Biotin-Peroxidase Complex is added and unbound conjugates are washed away with PBS or TBS buffer. HRP substrate TMB is used to visualize HRP enzymatic reaction. TMB is catalyzed by HRP to produce a blue color product that changed into yellow after adding acidic stop solution. The density of yellow is proportional to the Human Complement H/CFH amount of sample captured in plate.

  • Notes

    Complement factor H (CFH), originally known as beta-1H globulin, is a serum glycoprotein that regulates the function of the alternative complement pathway in fluid phase and on cellular surfaces. It binds to C3b, accelerates the decay of the alternative pathway convertase C3bBb, and also acts as a cofactor for complement factor I, another C3b inhibitor. The CFH gene is located on chromosome 1q32-q32.1 within a cluster of genes encoding the regulatory complement components of the activation of C3 (RCA for 'regulators of complement activation'). This gene cluster includes decay accelerating factor (DAF), C4-binding protein (C4BPA and C4BPB), and the factor H-related genes CFHR1, CFHR2, CFHR3, CFHR4, and CFHR5, among others. The gene family has arisen by multiple duplication events.

  • Tested applications

    Suitable for: Sandwich ELISAmore details
  • Platform

    Pre-coated microplate (12 x 8 well strips)


  • Storage instructions

    Store at -20°C. Please refer to protocols.
  • Components Identifier 1 x 96 tests
    ABC Diluent Buffer Blue Cap 1 x 12ml
    Adhesive Plate Seal 4 units
    Antibody Diluent Buffer Green Cap 1 x 12ml
    Anti-Human CFH coated Microplate (12 x 8 wells) 1 x 96 tests
    Avidin-Biotin-Peroxidase Complex (ABC) 1 x 130µl
    Biotinylated anti- human CFH antibody 1 x 130µl
    Lyophilized recombinant human CFH standard 2 x 100ng
    Sample Diluent Buffer Green Cap 1 x 30ml
    TMB Color Developing Agent Black Cap 1 x 10ml
    TMB Stop Solution Yellow Cap 1 x 10ml
  • Research areas

  • Function

    Factor H functions as a cofactor in the inactivation of C3b by factor I and also increases the rate of dissociation of the C3bBb complex (C3 convertase) and the (C3b)NBB complex (C5 convertase) in the alternative complement pathway.
  • Tissue specificity

    Expressed by the liver and secreted in plasma.
  • Involvement in disease

    Genetic variations in CFH are associated with basal laminar drusen (BLD) [MIM:126700]; also known as drusen of Bruch membrane or cuticular drusen or grouped early adult-onset drusen. Drusen are extracellular deposits that accumulate below the retinal pigment epithelium on Bruch membrane. Basal laminar drusen refers to an early adult-onset drusen phenotype that shows a pattern of uniform small, slightly raised yellow subretinal nodules randomly scattered in the macula. In later stages, these drusen often become more numerous, with clustered groups of drusen scattered throughout the retina. In time these small basal laminar drusen may expand and ultimately lead to a serous pigment epithelial detachment of the macula that may result in vision loss.
    Defects in CFH are the cause of complement factor H deficiency (CFH deficiency) [MIM:609814]. CFH deficiency determines uncontrolled activation of the alternative complement pathway with consumption of C3 and often other terminal complement components. It is associated with a number of renal diseases with variable clinical presentation and progression, including membranoproliferative glomerulonephritis and atypical hemolytic uremic syndrome. CFH deficiency patients may show increased susceptibility to meningococcal infections.
    Defects in CFH are a cause of susceptibility to hemolytic uremic syndrome atypical type 1 (AHUS1) [MIM:235400]. An atypical form of hemolytic uremic syndrome. It is a complex genetic disease characterized by microangiopathic hemolytic anemia, thrombocytopenia, renal failure and absence of episodes of enterocolitis and diarrhea. In contrast to typical hemolytic uremic syndrome, atypical forms have a poorer prognosis, with higher death rates and frequent progression to end-stage renal disease. Note=Susceptibility to the development of atypical hemolytic uremic syndrome can be conferred by mutations in various components of or regulatory factors in the complement cascade system. Other genes may play a role in modifying the phenotype.
    Genetic variation in CFH is associated with age-related macular degeneration type 4 (ARMD4) [MIM:610698]. ARMD is a multifactorial eye disease and the most common cause of irreversible vision loss in the developed world. In most patients, the disease is manifest as ophthalmoscopically visible yellowish accumulations of protein and lipid (known as drusen) that lie beneath the retinal pigment epithelium and within an elastin-containing structure known as Bruch membrane.
  • Sequence similarities

    Contains 20 Sushi (CCP/SCR) domains.
  • Cellular localization

  • Information by UniProt
  • Alternative names

    • adrenomedullin binding protein
    • age related maculopathy susceptibility 1
    • AHUS 1
    • AHUS1
    • AMBP 1
    • AMBP1
    • ARMD 4
    • ARMD4
    • ARMS 1
    • ARMS1
    • beta 1 H globulin
    • beta 1H
    • beta1H
    • CFH
    • CFHL 3
    • CFHL3
    • Complement factor H
    • complement factor H, isoform b
    • Factor H
    • factor H like 1
    • FH
    • FHL 1
    • FHL1
    • H factor 1
    • H factor 1 (complement)
    • H factor 2 (complement)
    • HF
    • HF 1
    • HF 2
    • HF1
    • HF2
    • HUS
    • MGC88246
    see all
  • Database links


Our Abpromise guarantee covers the use of ab213765 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
Sandwich ELISA Use at an assay dependent concentration.


  • Human Complement H ELISA Kit (ab213765) Standard Curve



ab213765 has not yet been referenced specifically in any publications.

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