Date published: 2025-12-3

1-800-457-3801

SCBT Portrait Logo
Seach Input

Factor B Antibody (F-7): sc-271636

5.0(3)
Write a reviewAsk a question

Datasheets
  • Factor B Antibody (F-7) is a mouse monoclonal IgG1 κ, cited in 3 publications, provided at 200 µg/ml
  • raised against amino acids 426-520 mapping within an internal region of Factor B of human origin
  • Factor B Antibody (F-7) is recommended for detection of Complement Factor B Bb Fragment of human origin by WB, IP, IF and ELISA
  • Anti-Factor B Antibody (F-7) is available conjugated to agarose for IP; HRP for WB, IHC(P) and ELISA; and to either phycoerythrin or FITC for IF, IHC(P) and FCM
  • also available conjugated to Alexa Fluor® 488, Alexa Fluor® 546, Alexa Fluor® 594 or Alexa Fluor® 647 for WB (RGB), IF, IHC(P) and FCM, and for use with RGB fluorescent imaging systems, such as iBright™ FL1000, FluorChem™, Typhoon, Azure and other comparable systems
  • also available conjugated to Alexa Fluor® 680 or Alexa Fluor® 790 for WB (NIR), IF and FCM; for use with Near-Infrared (NIR) detection systems, such as LI-COR®Odyssey®, iBright™ FL1000, FluorChem™, Typhoon, Azure and other comparable systems
  • m-IgG Fc BP-HRP and m-IgG1 BP-HRP are the preferred secondary detection reagents for Factor B Antibody (F-7) for WB applications. These reagents are now offered in bundles with Factor B Antibody (F-7) (see ordering information below).

QUICK LINKS

SEE ALSO...

Factor B Antibody (F-7) is a mouse monoclonal IgG1 kappa light chain antibody that detects Complement Factor B, Bb Fragment, of human origin by western blotting (WB), immunoprecipitation (IP), immunofluorescence (IF), and enzyme-linked immunosorbent assay (ELISA). anti-Factor B antibody (F-7) is available in both non-conjugated and various conjugated forms, including agarose, horseradish peroxidase (HRP), phycoerythrin (PE), fluorescein isothiocyanate (FITC), and multiple Alexa Fluor® conjugates, providing versatility for different experimental needs. Complement Factor B plays a crucial role in the alternative pathway of the complement system, where Factor D cleaves Complement Factor B into Ba and Bb fragments. Bb fragment combines with complement Factor 3b to form the C3 or C5 convertase, essential for amplifying complement response. This process enables immune system response to pathogens, leading to pathogen opsonization and clearance by phagocytes. Bb also influences differentiation and proliferation of preactivated B lymphocytes, erythrocyte lysis, and lymphocyte blastogenesis stimulation, demonstrating significance in both innate and adaptive immunity. Ba fragment regulates immune responses by inhibiting preactivated B lymphocyte proliferation. Understanding Complement Factor B and fragment functions helps elucidate immune regulation mechanisms and potential therapeutic targets in complement dysregulation 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 B Antibody (F-7) References:

  1. New structural motifs on the chymotrypsin fold and their potential roles in complement factor B.  |  Jing, H., et al. 2000. EMBO J. 19: 164-73. PMID: 10637221
  2. Factor B of the alternative complement pathway regulates development of airway hyperresponsiveness and inflammation.  |  Taube, C., et al. 2006. Proc Natl Acad Sci U S A. 103: 8084-9. PMID: 16702544
  3. The principal site of glycation of human complement factor B.  |  Niemann, MA., et al. 1991. Biochem J. 274 (Pt 2): 473-80. PMID: 2006911
  4. Ba and Bb fragments of factor B activation: fragment production, biological activities, neoepitope expression and quantitation in clinical samples.  |  Kolb, WP., et al. 1989. Complement Inflamm. 6: 175-204. PMID: 2472921
  5. gamma-Interferon increases expression of class III complement genes C2 and factor B in human monocytes and in murine fibroblasts transfected with human C2 and factor B genes.  |  Strunk, RC., et al. 1985. J Biol Chem. 260: 15280-5. PMID: 2866182
  6. A transcriptional factor B paralog functions as an activator to DNA damage-responsive expression in archaea.  |  Feng, X., et al. 2018. Nucleic Acids Res. 46: 7465. PMID: 29897479
  7. Adipose vascular endothelial growth factor B is a major regulator of energy metabolism.  |  Chen, Y., et al. 2020. J Endocrinol. 244: 511-521. PMID: 31910156
  8. Cell-specific expression of the human complement protein factor B gene: evidence for the role of two distinct 5'-flanking elements.  |  Wu, LC., et al. 1987. Cell. 48: 331-42. PMID: 3643061
  9. Molecular cloning and characterization of the gene coding for human complement protein factor B.  |  Campbell, RD. and Porter, RR. 1983. Proc Natl Acad Sci U S A. 80: 4464-8. PMID: 6308626
  10. Complete primary structure for the zymogen of human complement factor B.  |  Mole, JE., et al. 1984. J Biol Chem. 259: 3407-12. PMID: 6546754
  11. Isolation of cDNA clones for the human complement protein factor B, a class III major histocompatibility complex gene product.  |  Woods, DE., et al. 1982. Proc Natl Acad Sci U S A. 79: 5661-5. PMID: 6957884
  12. A targeted disruption of the murine complement factor B gene resulting in loss of expression of three genes in close proximity, factor B, C2, and D17H6S45.  |  Taylor, PR., et al. 1998. J Biol Chem. 273: 1699-704. PMID: 9430715

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Factor B Antibody (F-7)

sc-271636
200 µg/ml
$316.00

Factor B Antibody (F-7): m-IgG Fc BP-HRP Bundle

sc-527271
200 µg Ab; 10 µg BP
$354.00

Factor B Antibody (F-7): m-IgG1 BP-HRP Bundle

sc-532644
200 µg Ab; 20 µg BP
$354.00

Factor B Antibody (F-7) AC

sc-271636 AC
500 µg/ml, 25% agarose
$416.00

Factor B Antibody (F-7) HRP

sc-271636 HRP
200 µg/ml
$316.00

Factor B Antibody (F-7) FITC

sc-271636 FITC
200 µg/ml
$330.00

Factor B Antibody (F-7) PE

sc-271636 PE
200 µg/ml
$343.00

Factor B Antibody (F-7) Alexa Fluor® 488

sc-271636 AF488
200 µg/ml
$357.00

Factor B Antibody (F-7) Alexa Fluor® 546

sc-271636 AF546
200 µg/ml
$357.00

Factor B Antibody (F-7) Alexa Fluor® 594

sc-271636 AF594
200 µg/ml
$357.00

Factor B Antibody (F-7) Alexa Fluor® 647

sc-271636 AF647
200 µg/ml
$357.00

Factor B Antibody (F-7) Alexa Fluor® 680

sc-271636 AF680
200 µg/ml
$357.00

Factor B Antibody (F-7) Alexa Fluor® 790

sc-271636 AF790
200 µg/ml
$357.00

What is the recommended starting dilution for Western blot for sc-271636: Factor B (F-7) monoclonal antibody?

Asked by: Randy McDonald
The recommended starting dilution for Western blot is 1:100 with a dilution range of 1:100-1:1000. This information, along with other technical specifications, is available in the recommended protocol: https://www.scbt.com/scbt/resources/protocols/western-immuno-blotting
Answered by: Technical Support
Date published: 2017-03-22
  • y_2025, m_11, d_14, h_6CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_1
  • loc_en_US, sid_271636, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_scbt
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 110ms
  • QUESTIONS, PRODUCT
Rated 5 out of 5 by from Works as expectedNice robust clean band in Western Blotting at a 1:200 dilution.
Date published: 2017-01-20
Rated 5 out of 5 by from Great Western Blot data of Factor B expressionGreat Western Blot data of Factor B expression in non-transfected and human Factor B transfected 293 whole cell lysates. -SCBT QC
Date published: 2015-04-17
Rated 5 out of 5 by from Great Western Blot data of Factor B in humanGreat Western Blot data of Factor B in human plasma. -SCBT QC
Date published: 2013-08-05
  • y_2025, m_11, d_14, h_6
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_3
  • loc_en_US, sid_271636, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_scbt
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 16ms
  • REVIEWS, PRODUCT
Factor B Antibody (F-7) is rated 5.0 out of 5 by 3.
  • y_2025, m_11, d_14, h_6
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_3
  • loc_en_US, sid_271636, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_scbt
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getAggregateRating, 102ms
  • REVIEWS, PRODUCT