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AB108307

Anti-CD46 antibody [EPR4014]

5

(1 Review)

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(18 Publications)

Anti-CD46 antibody [EPR4014] (ab108307) is a rabbit monoclonal antibody detecting CD46 in Western Blot, IHC-P. Suitable for Human.

- KO validated for confirmed specificity
- Biophysical QC for unrivalled batch-batch consistency
- Over 10 publications

View Alternative Names

CD46, MCP, MIC10, Membrane cofactor protein, TLX, Trophoblast leukocyte common antigen

12 Images
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CD46 antibody [EPR4014] (AB108307)
  • IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CD46 antibody [EPR4014] (AB108307)

ab108307 showing positive staining in human thyroid gland carcinoma tissue.

Perform heat mediated antigen retrieval via the pressure cooker method before commencing with IHC staining protocol.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CD46 antibody [EPR4014] (AB108307)
  • IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CD46 antibody [EPR4014] (AB108307)

ab108307 at 1/500 dilution staining CD46 in paraffin-embedded human kidney tissue

Perform heat mediated antigen retrieval via the pressure cooker method before commencing with IHC staining protocol.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CD46 antibody [EPR4014] (AB108307)
  • IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CD46 antibody [EPR4014] (AB108307)

ab108307 showing positive staining in human colonic adenocarcinoma tissue.

Perform heat mediated antigen retrieval via the pressure cooker method before commencing with IHC staining protocol.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CD46 antibody [EPR4014] (AB108307)
  • IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CD46 antibody [EPR4014] (AB108307)

ab108307 at 1/500 dilution staining CD46 in paraffin-embedded human tonsil tissue.

Perform heat mediated antigen retrieval via the pressure cooker method before commencing with IHC staining protocol.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CD46 antibody [EPR4014] (AB108307)
  • IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CD46 antibody [EPR4014] (AB108307)

ab108307 showing positive staining in human normal breast tissue.

Perform heat mediated antigen retrieval via the pressure cooker method before commencing with IHC staining protocol.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CD46 antibody [EPR4014] (AB108307)
  • IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CD46 antibody [EPR4014] (AB108307)

ab108307 showing positive staining in human normal placenta tissue.

Perform heat mediated antigen retrieval via the pressure cooker method before commencing with IHC staining protocol.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CD46 antibody [EPR4014] (AB108307)
  • IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CD46 antibody [EPR4014] (AB108307)

ab108307 showing positive staining in human normal uterus tissue.

Perform heat mediated antigen retrieval via the pressure cooker method before commencing with IHC staining protocol.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CD46 antibody [EPR4014] (AB108307)
  • IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CD46 antibody [EPR4014] (AB108307)

ab108307 showing positive staining in human breast carcinoma tissue.

Perform heat mediated antigen retrieval via the pressure cooker method before commencing with IHC staining protocol.

Western blot - Anti-CD46 antibody [EPR4014] (AB108307)
  • WB

Lab

Western blot - Anti-CD46 antibody [EPR4014] (AB108307)

Western blot : Anti-CD46 antibody [EPR4014] (ab108307) staining at 1/1000 dilution, shown in green; Mouse anti-GAPDH antibody [6C5] (ab8245) loading control staining at 1/20000 dilution, shown in magenta. In Western blot, ab108307 was shown to bind specifically to CD46. A band was observed at 50-75 kDa in wild-type A549 cell lysates with no signal observed at this size in CD46 knockout cell line. To generate this image, wild-type and CD46 knockout A549 cell lysates were analysed. First, samples were run on an SDS-PAGE gel then transferred onto a nitrocellulose membrane. Membranes were blocked in 3 % milk in TBS-0.1 % Tween® 20 (TBS-T) before incubation with primary antibodies overnight at 4 °C. Blots were washed four times in TBS-T, incubated with secondary antibodies for 1 h at room temperature, washed again four times then imaged. Secondary antibodies used were Goat anti-Rabbit IgG H&L 800CW and Goat anti-Mouse IgG H&L 680RD at 1/20000 dilution.

All lanes:

Western blot - Anti-CD46 antibody [EPR4014] (ab108307) at 1/1000 dilution

Lane 1:

Wild-type A549 cell lysate at 20 µg

Lane 2:

CD46 knockout A549 cell lysate at 20 µg

Lane 3:

HAP1 cell lysate at 20 µg

Lane 4:

THP-1 cell lysate at 20 µg

Secondary

All lanes:

Goat anti-Rabbit IgG H&L 800CW and Goat anti-Mouse IgG H&L 680RD at 1/20000 dilution

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Western blot - Anti-CD46 antibody [EPR4014] (AB108307)
  • WB

Unknown

Western blot - Anti-CD46 antibody [EPR4014] (AB108307)

All lanes:

Western blot - Anti-CD46 antibody [EPR4014] (ab108307) at 1/1000 dilution

Lane 1:

MOLT-4 (Human lymphoblastic leukemia cell line) cell lysate at 10 µg

Lane 2:

Jurkat (Human T cell leukemia cell line from peripheral blood) cell lysate at 10 µg

Lane 3:

HeLa (Human epithelial cell line from cervix adenocarcinoma) cell lysate at 10 µg

Lane 4:

K562 (Human chronic myelogenous leukemia cell line from bone marrow) cell lysate at 10 µg

Secondary

All lanes:

Goat anti-rabbit HRP conjugate at 1/2000 dilution

Predicted band size: 44 kDa

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Western blot - Anti-CD46 antibody [EPR4014] (AB108307)
  • WB

Lab

Western blot - Anti-CD46 antibody [EPR4014] (AB108307)

Lane 1 : Wild-type HAP1 cell lysate (20 μg)
Lane 2 : CD46 knockout HAP1 cell lysate (20 μg)
Lane 3 : HeLa cell lysate (20 μg)
Lane 4 : K562 cell lysate (20 μg)
Lanes 1 - 4 : Merged signal (red and green). Green - ab108307 observed at 50-70 kDa. Red - loading control, ab8245, observed at 37 kDa.
ab108307 was shown to specifically react with when CD46 knockout samples were used. Wild-type and CD46 knockout samples were subjected to SDS-PAGE. ab108307 and ab8245 (loading control to GAPDH) were diluted 1/1000 and 1/10 000 respectively and incubated overnight at 4°C. Blots were developed with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed (ab216773) and Goat anti-Mouse IgG H&L (IRDye® 680RD) preadsorbed (ab216776) secondary antibodies at 1/10 000 dilution for 1 h at room temperature before imaging.

All lanes:

Western blot - Anti-CD46 antibody [EPR4014] (ab108307)

Predicted band size: 44 kDa

false

Western blot - Anti-CD46 antibody [EPR4014] (AB108307)
  • WB

CiteAb

Western blot - Anti-CD46 antibody [EPR4014] (AB108307)

CD46 western blot using anti-CD46 antibody [EPR4014] ab108307. Publication image and figure legend from Scambi, C., Ugolini, S., et al., 2015, PLoS One, PubMed 25658605.

ab108307 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 ab108307 please see the product overview.

Immunoblot analysis of MCP (CD46) of skin biopsies from healthy controls and SSc patients.Protein extract from skin biopsies of 8 SSc patients (4 lesional SSc skin and 4 non-lesional SSc skin) and 8 healthy subjects were analyzed by immunoblot using a specific antibody. Results of a representative experiment of four are shown. Data are expressed as an optical density ratio of MCP (CD46) and β-tubulin.

false

  • Carrier free

    Anti-CD46 antibody [EPR4014] - BSA and Azide free

  • Carrier free

    Anti-CD46 antibody [EPR4014] - Low endotoxin, Azide free

Key facts

Host species

Rabbit

Clonality

Monoclonal

Clone number

EPR4014

Isotype

IgG

Carrier free

No

Reacts with

Human

Applications

WB, IHC-P

applications

Immunogen

The exact immunogen used to generate this antibody is proprietary information.

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "IHCP" : {"fullname" : "Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)", "shortname":"IHC-P"}, "IP" : {"fullname" : "Immunoprecipitation", "shortname":"IP"}, "FlowCyt" : {"fullname" : "Flow Cytometry", "shortname":"Flow Cyt"}, "WB" : {"fullname" : "Western blot", "shortname":"WB"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "IHCP-species-checked": "testedAndGuaranteed", "IHCP-species-dilution-info": "1/500 - 1/1000", "IHCP-species-notes": "<p></p>", "IP-species-checked": "notRecommended", "IP-species-dilution-info": "", "IP-species-notes": "<p></p>", "FlowCyt-species-checked": "notRecommended", "FlowCyt-species-dilution-info": "", "FlowCyt-species-notes": "<p></p>", "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "1/1000 - 1/10000", "WB-species-notes": "<p></p>" }, "Rabbit": { "IHCP-species-checked": "predicted", "IHCP-species-dilution-info": "", "IHCP-species-notes": "", "IP-species-checked": "notRecommended", "IP-species-dilution-info": "", "IP-species-notes": "", "FlowCyt-species-checked": "notRecommended", "FlowCyt-species-dilution-info": "", "FlowCyt-species-notes": "", "WB-species-checked": "predicted", "WB-species-dilution-info": "", "WB-species-notes": "" } } }

Product details

What is this antibody validated in?
Anti-CD46 antibody [EPR4014] (ab108307) is a rabbit recombinant monoclonal antibody and is validated for use in Western Blot (WB), Immunohistochemistry (IHC-P) in Human samples.

What is the molecular weight of CD46?
Anti-CD46 [EPR4014] (ab108307) specifically detects a band for CD46 (UniProt: P15529) at a molecular weight of 44kDa.

Trusted by the scientific community
Anti-CD46 [EPR4014] (ab108307) was first used in a scientific publication in 2011 and has been cited over 10 times in peer-reviewed journals.

Trial sizes available!
Test your antibody or perform pre-screening before committing to a larger quantity. Sold in 10µl. Discover our selection of trial-size antibodies.

Specificity confirmed
The specificity of Anti-CD46 antibody [EPR4014] (ab108307) has been confirmed by Western blot testing in CD46 Knockout HAP1 cells.

Other related products
We have a range of other formats of antibody clone [EPR4014] also available for your convenience: ab108307, Carrier free - ab229446, Carrier free - ab271871

Species reactivity
Mouse, Rat: We have preliminary internal testing data to indicate this antibody may not react with these species.
Please contact us for more information.

Patented technology
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.

What are the advantages of a recombinant monoclonal antibody?
This product is a recombinant monoclonal antibody, which offers several advantages including:

  • - High batch-to-batch consistency and reproducibility
  • - Improved sensitivity and specificity
  • - Long-term security of supply
  • - Animal-free batch production

For more information, read more on recombinant antibodies.

Properties and storage information

Form
Liquid
Purification technique
Affinity purification Protein A
Storage buffer
pH: 7.2 - 7.4 Preservative: 0.01% Sodium azide Constituents: PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA
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
Stable for 12 months at -20°C

Supplementary information

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

CD46 also known as membrane cofactor protein (MCP) is a type I membrane protein with a molecular weight around 50-70 kDa due to glycosylation variability. This protein serves as a regulatory component in the complement system which protects host cells from damage by complement components. CD46 is widely expressed on almost all nucleated human cells. It plays a role in inactivating C3b and C4b components of the complement cascade preventing autologous complement-mediated damage. The gene coding for CD46 is located on chromosome 1q32 a region known for encoding several complement regulatory proteins.
Biological function summary

Beyond its complement regulatory role CD46 acts in immune response modulation and reproduction. It forms a part of a protein complex that involves members such as decay-accelerating factor and complement receptor 1. CD46 also engages in intracellular signaling that affects T cell function and differentiation. In the reproductive context it participates in sperm-oocyte fusion and has a role in trophoblast fusion during placental formation.

Pathways

CD46 integrates into various signaling pathways including the complement and T cell receptor signaling pathways. In the complement pathway CD46 interacts with C3b and factor I promoting cleavage and inactivation of C3b leading to pathway regulation. Involvement in the T cell receptor pathway hints that CD46 signaling protects against overactive immune responses by promoting a switch to a regulatory T cell phenotype which can modulate immunity and prevent autoimmunity.

CD46 has connections with autoimmune conditions and infectious diseases. For instance alterations in CD46 expression or function can contribute to atypical hemolytic uremic syndrome where dysregulation of the complement pathway occurs. Additionally certain pathogens like Neisseria gonorrhoeae utilize CD46 as a receptor for infection. CD46's interaction with proteins such as C3b connects it directly to complement-related conditions highlighting its importance in maintaining immune system balance.

Product protocols

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

Target data

Acts as a cofactor for complement factor I, a serine protease which protects autologous cells against complement-mediated injury by cleaving C3b and C4b deposited on host tissue. May be involved in the fusion of the spermatozoa with the oocyte during fertilization. Also acts as a costimulatory factor for T-cells which induces the differentiation of CD4+ into T-regulatory 1 cells. T-regulatory 1 cells suppress immune responses by secreting interleukin-10, and therefore are thought to prevent autoimmunity.. (Microbial infection) A number of viral and bacterial pathogens seem to bind MCP in order to exploit its immune regulation property and directly induce an immunosuppressive phenotype in T-cells.. (Microbial infection) Acts as a receptor for Adenovirus subgroup B2 and Ad3.. (Microbial infection) Acts as a receptor for cultured Measles virus.. (Microbial infection) Acts as a receptor for Herpesvirus 6/HHV-6.. (Microbial infection) May act as a receptor for pathogenic bacteria Neisseria and Streptococcus pyogenes (PubMed : 11260136, PubMed : 11971006, PubMed : 7708671, PubMed : 9379894).
See full target information CD46

Publications (18)

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

Haematologica : PubMed40820810

2025

KLF4 overexpression protects against complement-mediated endothelial injury in transplant-associated thrombotic microangiopathy.

Applications

Unspecified application

Species

Unspecified reactive species

Shuhui Jiang,Jiaqian Qi,Tingting Pan,Zhenzhen Yao,Siyi Lu,Yifei Han,Depei Wu,Yue Han

International journal of oncology 65: PubMed38847230

2024

Complement regulatory protein CD46 promotes bladder cancer metastasis through activation of MMP9.

Applications

Unspecified application

Species

Unspecified reactive species

Thuy Nguyen Thi,Hien Duong Thanh,Van-Tan Nguyen,Se-Young Kwon,Changjong Moon,Eu Chang Hwang,Chaeyong Jung

Pathology, research and practice 247:154519 PubMed37244049

2023

Complement and complement regulatory proteins are upregulated in lungs of COVID-19 patients.

Applications

Unspecified application

Species

Unspecified reactive species

Xiaowen Ge,Zhui Yu,Xinxin Guo,Ling Li,Ling Ye,Maosong Ye,Jingping Yuan,Chouwen Zhu,Weiguo Hu,Yingyong Hou

Investigative ophthalmology & visual science 64:28 PubMed37093132

2023

Effects of Plasma-Derived Exosomal miRNA-19b-3p on Treg/T Helper 17 Cell Imbalance in Behçet's Uveitis.

Applications

Unspecified application

Species

Unspecified reactive species

Qingyan Jiang,Qingfeng Wang,Shiyao Tan,Jinyu Cai,Xingsheng Ye,Guannan Su,Peizeng Yang

American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons 22:46-57 PubMed34331749

2021

Kidney transplantation from triple-knockout pigs expressing multiple human proteins in cynomolgus macaques.

Applications

Unspecified application

Species

Unspecified reactive species

David Ma,Takayuki Hirose,Grace Lassiter,Hajime Sasaki,Ivy Rosales,Taylor M Coe,Charles G Rickert,Rudy Matheson,Robert B Colvin,Wenning Qin,Yinan Kan,Jacob V Layer,Violette B Paragas,Kathryn Stiede,Katherine C Hall,Michele E Youd,Luis M Queiroz,William F Westlin,Michael Curtis,Luhan Yang,James F Markmann,Tatsuo Kawai

Molecular genetics & genomic medicine 9:e1579 PubMed33350607

2020

Patient with CATSPER3 mutations-related failure of sperm acrosome reaction with successful pregnancy outcome from intracytoplasmic sperm injection (ICSI).

Applications

Unspecified application

Species

Unspecified reactive species

Jiaxiong Wang,Hui Tang,Qinyan Zou,Aiyan Zheng,Hong Li,Shenmin Yang,Jingjing Xiang

PloS one 15:e0236968 PubMed32745140

2020

Complement inhibitor Crry expression in mouse placenta is essential for maintaining normal blood pressure and fetal growth.

Applications

Unspecified application

Species

Unspecified reactive species

Manu Banadakoppa,Kathleen Pennington,Meena Balakrishnan,Chandra Yallampalli

Molecular oncology 14:657-668 PubMed31899582

2020

A SIRPα-Fc fusion protein enhances the antitumor effect of oncolytic adenovirus against ovarian cancer.

Applications

Unspecified application

Species

Unspecified reactive species

Yao Huang,Sai-Qun Lv,Pin-Yi Liu,Zhen-Long Ye,Huan Yang,Lin-Fang Li,Hai-Li Zhu,Ying Wang,Lian-Zhen Cui,Du-Qing Jiang,Fang-Yuan Hao,Hui-Min Xu,Hua-Jun Jin,Qi-Jun Qian

Xenotransplantation 26:e12540 PubMed31219218

2019

The role of human CD46 in early xenoislet engraftment in a dual transplant model.

Applications

Unspecified application

Species

Unspecified reactive species

Kannan P Samy,Qimeng Gao,Robert Patrick Davis,Mingqing Song,Zachary W Fitch,Michael S Mulvihill,Andrea L MacDonald,Frank V Leopardi,Tam How,Kyha D Williams,Gayathri R Devi,Bradley H Collins,Xunrong Luo,Allan D Kirk

Cancer letters 460:108-118 PubMed31226409

2019

A recombinant measles virus vaccine strain rMV-Hu191 has oncolytic effect against human gastric cancer by inducing apoptotic cell death requiring integrity of lipid raft microdomains.

Applications

Unspecified application

Species

Unspecified reactive species

Yao Lv,Duo Zhou,Xiao-Qiang Hao,Meng-Ying Zhu,Chu-di Zhang,Dong-Ming Zhou,Jin-Hu Wang,Rong-Xian Liu,Yi-Long Wang,Wei-Zhong Gu,Hong-Qiang Shen,Xi Chen,Zheng-Yan Zhao
View all publications

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