Date published: 2025-12-3

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Factor H Antibody (L20/3): sc-47686

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Datasheets
  • Factor H Antibody (L20/3) is a mouse monoclonal IgG1 κ, cited in 4 publications, provided at 200 µg/ml
  • raised against complement protein factor H purified from human serum
  • recommended for detection of Factor H of human origin by WB, IP, IF and IHC(P)
  • See Factor H (C18/3): sc-47685 for Factor H antibody conjugates, including AC, HRP, FITC, PE, Alexa Fluor® 488, 594, 647, 680 and 790.
  • m-IgG Fc BP-HRP, m-IgG1 BP-HRP and m-IgGκ BP-HRP are the preferred secondary detection reagents for Factor H Antibody (L20/3) for WB and IHC(P) applications. These reagents are now offered in bundles with Factor H Antibody (L20/3) (see ordering information below).

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Factor H Antibody (L20/3) is a mouse monoclonal IgG1 antibody that detects Factor H in human samples through applications such as western blotting (WB), immunoprecipitation (IP), immunofluorescence (IF), and immunohistochemistry with paraffin-embedded sections (IHCP). Factor H is a crucial serum glycoprotein composed of 1213 amino acids, organized into 20 short consensus repeats (SCRs) that are approximately 60 amino acids in length, along with an 18-residue leader sequence. This unique structure allows Factor H to effectively regulate the alternative complement pathway, serving as a cofactor for Factor I, which inactivates C3b, thereby preventing excessive complement activation that could lead to tissue damage. Beyond complement system regulation, Factor H also interacts with various cellular components, including the integrin receptor CD11b/CD18 and cell surface glycosaminoglycans, highlighting Factor H′s multifunctional nature and importance in immune response and pathogen recognition. Notably, Factor H deficiencies are associated with acute renal diseases, underscoring Factor H′s significance in maintaining kidney health and overall immune function. Anti-Factor H antibody (L20/3) is an essential tool for researchers investigating the complexities of the complement system and its implications in various diseases.

For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.

Alexa Fluor® is a trademark of Molecular Probes Inc., OR., USA

LI-COR® and Odyssey® are registered trademarks of LI-COR Biosciences

Factor H Antibody (L20/3) References:

  1. Factor H and the pathogenesis of renal diseases.  |  Ault, BH. 2000. Pediatr Nephrol. 14: 1045-53. PMID: 10975323
  2. Complement factor H in its alternative identity as adrenomedullin-binding protein 1.  |  Sim, RB., et al. 2015. Mol Immunol. 68: 45-8. PMID: 26597206
  3. Complement factor H in host defense and immune evasion.  |  Parente, R., et al. 2017. Cell Mol Life Sci. 74: 1605-1624. PMID: 27942748
  4. Potential influences of complement factor H in autoimmune inflammatory and thrombotic disorders.  |  Ferluga, J., et al. 2017. Mol Immunol. 84: 84-106. PMID: 28216098
  5. Factor H Family Proteins in Complement Evasion of Microorganisms.  |  Józsi, M. 2017. Front Immunol. 8: 571. PMID: 28572805
  6. Function and Dysfunction of Complement Factor H During Formation of Lipid-Rich Deposits.  |  Meri, S. and Haapasalo, K. 2020. Front Immunol. 11: 611830. PMID: 33363547
  7. Factor H Autoantibodies and Complement-Mediated Diseases.  |  Zhang, Y., et al. 2020. Front Immunol. 11: 607211. PMID: 33384694
  8. Hijacking Factor H for Complement Immune Evasion.  |  Moore, SR., et al. 2021. Front Immunol. 12: 602277. PMID: 33717083
  9. Factor H preserves alternative complement function during ARDS, linked to improved survival.  |  Bain, W., et al. 2023. ERJ Open Res. 9: PMID: 37377659
  10. Protective role of complement factor H against the development of preeclampsia.  |  Yasmin, H., et al. 2024. Front Immunol. 15: 1351898. PMID: 38464530

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Factor H Antibody (L20/3)

sc-47686
200 µg/ml
$316.00

Factor H Antibody (L20/3): m-IgG Fc BP-HRP Bundle

sc-536797
200 µg Ab; 10 µg BP
$354.00

Factor H Antibody (L20/3): m-IgGκ BP-HRP Bundle

sc-533961
200 µg Ab; 40 µg BP
$354.00

Factor H Antibody (L20/3): m-IgG1 BP-HRP Bundle

sc-544823
200 µg Ab; 20 µg BP
$354.00

Does this antibody work for FH CCP 18-20 (c-terminal) Elisa quantification? Thank you!

Asked by: Jackie19
Thank you for your question. This mouse monoclonal antibody was raised against complement protein factor H purified from human serum. The exact epitope recognized by this antibody has not been determined. We do not currently recommend using this antibody for ELISA.
Answered by: Technical Support
Date published: 2019-12-05

I am using Factor H (L20/3): sc-47686 monoclonal antibody to stain paraffin embedded tissue. Do you recommend antigen retrieval when using this antibody?

Asked by: jerojero
We recommend performing antigen retrieval with sodium citrate buffer (pH 6) and heat. The full protocol can be found here: https://www.scbt.com/scbt/resources/protocols/immunoperoxidase-staining
Answered by: Technical Support
Date published: 2017-02-24
  • y_2025, m_11, d_21, h_6CST
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Rated 5 out of 5 by from Reliable Antibody, Great for IHCThis antibody is well-cited for a variety of applications including WB, IP, IF, and even IHC. Strong, clear signal with little to no background. Beautiful tissue staining.
Date published: 2017-02-07
Rated 4 out of 5 by from Produced good immunoperoxidase plasma stainingProduced good immunoperoxidase plasma staining in formalin fixed, paraffin-embedded human blood vessel. -SCBT QC
Date published: 2015-03-02
Rated 4 out of 5 by from Good specificity in WB in human PBL wholeGood specificity in WB in human PBL whole cell lysate and human recombinant Factor H. -SCBT QC
Date published: 2015-02-25
Rated 4 out of 5 by from Good publishable in WB in squirrel liver samplesGood publishable in WB in squirrel liver samples. -SCBT Publication Review
Date published: 2015-01-24
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Factor H Antibody (L20/3) is rated 4.3 out of 5 by 4.
  • y_2025, m_11, d_21, h_6
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