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AB192577

Anti-Factor B antibody

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(12 Publications)

Rabbit Polyclonal CFAB antibody. Suitable for WB, IHC-P and reacts with Mouse, Human samples. Cited in 12 publications. Immunogen corresponding to Recombinant Full Length Protein corresponding to Human CFB.

View Alternative Names

BF, BFD, CFB, Complement factor B, C3/C5 convertase, Glycine-rich beta glycoprotein, PBF2, Properdin factor B, GBG

3 Images
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Factor B antibody (AB192577)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Factor B antibody (AB192577)

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of mouse kidney tissue labelling Factor B with ab192577 at 1/50 dilution.

Western blot - Anti-Factor B antibody (AB192577)
  • WB

Supplier Data

Western blot - Anti-Factor B antibody (AB192577)

All lanes:

Western blot - Anti-Factor B antibody (ab192577) at 1/500 dilution

Lane 1:

MCF7 (human breast adenocarcinoma cell line) whole cell lysate

Lane 2:

HeLa (human epithelial cell line from cervix adenocarcinoma) whole cell lysate

Lane 3:

U-251 MG (formally U-373 MG) (human brain glioma cell line) whole cell lysate

Lane 4:

THP-1 (human monocytic leukemia cell line) whole cell lysate

Predicted band size: 85 kDa

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Western blot - Anti-Factor B antibody (AB192577)
  • WB

CiteAb

Western blot - Anti-Factor B antibody (AB192577)

Factor B western blot using anti-Factor B antibody ab192577. Publication image and figure legend from Sun, X., Ni, Y., et al., 2022, Cell Death Dis, PubMed 36494334.

ab192577 was used in this publication in western blot. This may not be the same as the application(s) guaranteed by Abcam. For a full list of applications guaranteed by Abcam for ab192577 please see the product overview.

Down regulation of CFB in liver protects against Con-A induced liver injury.a Western blot assay showing CFB expression in mouse livers after shRNA-CFB injection. b Representative co-immunofluorescent staining images for F4/80 with CFB (white arrows). Scale bar = 100 μm. c The strategy for establishing a mouse model of injection of shRNA-CFB and Con-A administration. d The ALT levels in serum of mice exposed to Con-A for 8 h, n = 6. e Representative HE-stained mouse livers. Scale bar = 100 μm. f Liver sections of were immunofluorescent stained with TUNEL. Scale bar = 200 μm. g Left, representative immunofluorescent staining images for ly6b. Scale bar = 100 μm. Right, quantitative determination of ly6b+ cells among groups as indicated, n = 4. h Left, representative immunofluorescent staining images for C3d. Scale bar = 100 μm. Right, quantitative determination of C3d area in a field of vision, n = 4. i Representative immunostaining images for C5b-9. Scale bar = 100 μm. j Left, representative immunofluorescent staining images for F4/80 (white arrows). Scale bar = 100 μm. Right, quantitative determination of F4/80+ cells among groups as indicated, n = 4. *p < 0.05. k Schematic working model on the role of mTORC1 activation in hepatocytes and KCs in the pathogenesis of ALD.

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Key facts

Host species

Rabbit

Clonality

Polyclonal

Isotype

IgG

Carrier free

No

Reacts with

Mouse, Human

Applications

WB, IHC-P

applications

Immunogen

Recombinant Full Length Protein corresponding to Human CFB.

P00751

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "WB" : {"fullname" : "Western blot", "shortname":"WB"}, "IHCP" : {"fullname" : "Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)", "shortname":"IHC-P"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "1/500", "WB-species-notes": "<p></p>", "IHCP-species-checked": "guaranteed", "IHCP-species-dilution-info": "", "IHCP-species-notes": "" }, "Mouse": { "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "1/500", "WB-species-notes": "<p></p>", "IHCP-species-checked": "testedAndGuaranteed", "IHCP-species-dilution-info": "1/50", "IHCP-species-notes": "<p></p>" } } }

Properties and storage information

Form
Liquid
Purification technique
Affinity purification Immunogen
Purification notes
ab192577 was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen and the purity is > 95% (by SDS-PAGE).
Storage buffer
pH: 7.2 Preservative: 0.02% Sodium azide Constituents: PBS, 50% Glycerol (glycerin, glycerine)
Shipped at conditions
Blue Ice
Appropriate short-term storage duration
1-2 weeks
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

Factor B also known as B-factor is a protein that plays an important role in the immune system specifically in the complement pathway. It is sometimes referred to as factor B complement and its gene identifier is often referenced as KY21 NNL or factor B 1001. Factor B has a molecular mass of approximately 93 kDa. It is mainly expressed in the liver but can also be found in blood plasma in its inactive form as part of the innate immune response.
Biological function summary

Factor B is involved in the alternative complement pathway which serves as a part of the body's defense mechanism. It participates in the formation of the C3 convertase together with factor D and properdin initiating a cascade that can lead to the opsonization and elimination of pathogens. Factor B undergoes cleavage by factor D which generates the Ba and Bb fragments with Bb functioning as a serine protease within the C3 convertase complex.

Pathways

Factor B contributes to the complement system interacting notably in the alternative and lectin pathways. In these pathways Factor B associates with proteins like complement component C3. The alternative pathway is activated on microbial surfaces independent of antibodies. The involvement of Factor B in these pathways illustrates its role in pathogen recognition and further highlights its cooperation with complement proteins such as C3 and properdin.

Factor B has been associated with atypical hemolytic uremic syndrome (aHUS) a rare and serious disease affecting kidney function. Factor B involvement in aHUS links it to abnormal complement activation leading to a pathological condition. Additionally Factor B connects to age-related macular degeneration (AMD) a disorder where complement pathway genetic variations including those involving Factor B have shown associations. Understanding interactions with other complement components such as factor H helps to elucidate its role in these diseases.

Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:

Target data

Precursor of the catalytic component of the C3 and C5 convertase complexes of the alternative pathway of the complement system, a cascade of proteins that leads to phagocytosis and breakdown of pathogens and signaling that strengthens the adaptive immune system (PubMed : 3638964, PubMed : 624565, PubMed : 6554279, PubMed : 6919543, PubMed : 9748277). The alternative complement pathway acts as an amplification loop that enhances other complement pathways (classical, lectin and GZMK) by promoting formation of additional C3 and C5 convertases (PubMed : 3638964, PubMed : 624565, PubMed : 6554279, PubMed : 6919543, PubMed : 9748277). CFB is cleaved and activated by CFD to generate Ba and Bb chains; Bb chain constituting the catalytic component of the C3 and C5 convertases (PubMed : 6769474, PubMed : 9748277).. Complement factor B Bb. Serine protease component of the complement C3 and C5 convertase complexes of the alternative complement pathway (PubMed : 30643019, PubMed : 3638964, PubMed : 624565, PubMed : 6554279, PubMed : 6919543). Following cleavage and activation by factor D (CFD), forms the C3 convertase together with complement C3b (PubMed : 3638964, PubMed : 624565, PubMed : 6554279, PubMed : 6919543, PubMed : 9748277). As part of the C3 convertase, cleaves and activates C3 into C3a anaphylatoxin and C3b opsonin, the next components of the complement pathways (PubMed : 3638964, PubMed : 624565, PubMed : 6554279, PubMed : 6919543, PubMed : 9748277). When an additional complement C3b molecule binds to the C3 convertase, forms the C5 convertase, which cleaves and activates C5 into C5a anaphylatoxin and C5b component of the membrane attack complex (PubMed : 30643019, PubMed : 624565, PubMed : 6554279).. Complement factor B Ba. Involved in proliferation and differentiation of preactivated B-lymphocytes, rapid spreading of peripheral blood monocytes, stimulation of lymphocyte blastogenesis and lysis of erythrocytes.
See full target information CFB

Publications (12)

Recent publications for all applications. Explore the full list and refine your search

Scientific reports 15:495 PubMed39753879

2025

Complement classical and alternative pathway activation contributes to diabetic kidney disease progression: a glomerular proteomics on kidney biopsies.

Applications

Unspecified application

Species

Unspecified reactive species

Yang Yang,Ying Zhang,Yuan Li,Xinjin Zhou,Kazuho Honda,Dedong Kang,Muxi Wang,Jing-Hua Yang,Zongping Xia,Yuan Wei,Lu Liu,Ruimin Hu,Takashi Takaki,Guolan Xing

BMC nephrology 25:387 PubMed39478440

2024

The prognostic role of activation of the complement pathways in the progression of advanced IgA nephropathy to end-stage renal disease.

Applications

Unspecified application

Species

Unspecified reactive species

Ying Wang,Shimin Jiang,Dingxin Di,Guming Zou,Hongmei Gao,Shunlai Shang,Wenge Li

International journal of general medicine 16:1879-1889 PubMed37213477

2023

Lectin Complement Pathway Activation is Associated with Massive Proteinuria in PLA2R-Positive Membranous Nephropathy: A Retrospective Study.

Applications

Unspecified application

Species

Unspecified reactive species

Jiayi Li,Jiao Zhang,Xu Wang,Xumin Zheng,Hongmei Gao,Shimin Jiang,Wenge Li

JCI insight 7: PubMed36546481

2022

Deficiency of CFB attenuates renal tubulointerstitial damage by inhibiting ceramide synthesis in diabetic kidney disease.

Applications

Unspecified application

Species

Unspecified reactive species

Zi-Jun Sun,Dong-Yuan Chang,Min Chen,Ming-Hui Zhao

Cell death & disease 13:1031 PubMed36494334

2022

Mechanistic target of rapamycin complex 1 orchestrates the interplay between hepatocytes and Kupffer cells to determine the outcome of immune-mediated hepatitis.

Applications

Unspecified application

Species

Unspecified reactive species

Xiaoli Sun,Yajie Ni,Qingmiao Lu,Yan Liang,Mengru Gu,Xian Xue,Chunsun Dai

Frontiers in medicine 9:845679 PubMed35479942

2022

Activation of Complement Pathways in Kidney Tissue May Mediate Tubulointerstitial Injury in Diabetic Nephropathy.

Applications

Unspecified application

Species

Unspecified reactive species

Shimin Jiang,Yuanyuan Jiao,Guming Zou,Hongmei Gao,Li Zhuo,Wenge Li

Thoracic cancer 13:811-823 PubMed35137541

2022

Recruitment of IL-1β-producing intermediate monocytes enhanced by C5a contributes to the development of malignant pleural effusion.

Applications

Unspecified application

Species

Unspecified reactive species

Lisha Luo,Shuanglinzi Deng,Wei Tang,Xinyue Hu,Feifei Yin,Huan Ge,Jiale Tang,Zhonghua Liao,Xiaozhao Li,Juntao Feng

JCI insight 6: PubMed34622800

2021

Complement factor B in high glucose-induced podocyte injury and diabetic kidney disease.

Applications

Unspecified application

Species

Unspecified reactive species

Qingmiao Lu,Qing Hou,Kai Cao,Xiaoli Sun,Yan Liang,Mengru Gu,Xian Xue,Allan Zijian Zhao,Chunsun Dai

Human gene therapy 32:1370-1381 PubMed34238030

2021

Adeno-Associated Virus Vector Gene Delivery Elevates Factor I Levels and Downregulates the Complement Alternative Pathway .

Applications

Unspecified application

Species

Unspecified reactive species

Amina Ahmad,Mawj Mandwie,Anna K Dreismann,Christine M Smyth,Helen Doyle,Talat H Malik,Matthew C Pickering,Peter J Lachmann,Ian E Alexander,Grant J Logan

Journal of experimental & clinical cancer research 39:9 PubMed31928530

2020

Complement C3 overexpression activates JAK2/STAT3 pathway and correlates with gastric cancer progression.

Applications

Unspecified application

Species

Unspecified reactive species

Kaitao Yuan,Jinning Ye,Zhenguo Liu,Yufeng Ren,Weiling He,Jianbo Xu,Yulong He,Yujie Yuan
View all publications

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