JavaScript is disabled in your browser. Please enable JavaScript to view this website.
AB9475

Anti-CD20 antibody [L26]

5

(8 Reviews)

|

(101 Publications)

Anti-CD20 antibody [L26] (ab9475) is a mouse monoclonal antibody detecting CD20 in IHC-P. Suitable for Human.

- Over 70 publications
- Trusted since 2002

View Alternative Names

CD20, MS4A1, B-lymphocyte antigen CD20, B-lymphocyte surface antigen B1, Bp35, Leukocyte surface antigen Leu-16, Membrane-spanning 4-domains subfamily A member 1

2 Images
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CD20 antibody [L26] (AB9475)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CD20 antibody [L26] (AB9475)

Formalin-fixed, paraffin-embeded human tonsil tissue stained for CD20 using ab9475 at 1/50 dilution in immunohistochemical analysis. Antigen retrieval with citrate buffer pH 6.0.

Multiplex immunohistochemistry - Anti-CD20 antibody [L26] (AB9475)
  • mIHC

Collaborator

Multiplex immunohistochemistry - Anti-CD20 antibody [L26] (AB9475)

10-color fluorescence multiplex immunohistochemical analysis of human lung cancer tissue (formalin-fixed paraffin-embedded section).

Merged staining of anti-FOXP3 (ab215206; Cyan; TG540N), anti-PD1 (ab52587; Red; TG700N), anti-CD163 (ab182422; Brown; TG650N), anti-HLA-DR (ab92511; Yellow; TG570N), anti-CD4 (ab133616; Violet; TG620N), anti-CD8 alpha (ab101500; Purple; TG540S), anti-CD20 (ab9475; Grey; TG660S), anti-CD68 (ab192847; Green; TG520N), anti-Cytokeratin 19 (ab52625; Light blue; TG440N). TG470SN (dark blue) was used as a nuclear counter stain. The inset image shows the separate CD68 signal.

The section was incubated in nine rounds of staining; in the order of ab215206 (1/100 dilution), ab52587 (1/200 dilution), ab182422 (1/300 dilution), ab92511 (1/200 dilution), ab133616 (1/600 dilution), ab101500 (1/300 dilution), ab9475 (1/100 dilution), ab192847 (1/300 dilution), ab52625 (1/400 dilution); each using a separate fluorescent tyramide signal amplification system.

Sodium citrate antigen retrieval (pH6.0) was used in between rounds of tyramide signal amplification to remove the antibody from the previous round, to avoid any cross-reactivity.

Image acquisition was performed with TissueFAXS Spectra (TissueGnostics).

This image is courtesy of TissueGnostics Asia Pacific Limited

Key facts

Host species

Mouse

Clonality

Monoclonal

Clone number

L26

Isotype

IgG2a

Light chain type

kappa

Carrier free

No

Reacts with

Human

Applications

IHC-P

applications

Immunogen

Cell preparation containing MS4A1 protein. The exact immunogen used to generate this antibody is proprietary information.

P11836

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"}, "FlowCyt" : {"fullname" : "Flow Cytometry", "shortname":"Flow Cyt"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "IHCP-species-checked": "testedAndGuaranteed", "IHCP-species-dilution-info": "1/50 - 1/100", "IHCP-species-notes": "<p></p> Perform heat-mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.", "FlowCyt-species-checked": "notRecommended", "FlowCyt-species-dilution-info": "", "FlowCyt-species-notes": "<p></p>" } } }

Product details

What is this antibody validated in?
Anti-CD20 antibody [L26] (ab9475) is a mouse monoclonal antibody and is validated for use in Immunohistochemistry (IHC-P) in Human samples.

Trusted by the scientific community
Anti-CD20 [L26] (ab9475) was first used in a scientific publication in 2002 and has been cited over 70 times in peer-reviewed journals.

Reviewed by scientists
Anti-CD20 [L26] (ab9475) has over 5 independent reviews from customers.

Properties and storage information

Form
Liquid
Purity
Tissue culture supernatant
Storage buffer
pH: 7.3 - 7.5 Preservative: 0.1% Sodium azide
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
Storage information
Avoid freeze / thaw cycle

Supplementary information

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

CD20 also known as MS4A1 or L26 is a membrane-spanning 4-domains subfamily A member 1 protein. It is a non-glycosylated phosphoprotein with a molecular mass of approximately 33-37 kDa. Expressed extensively on the surface of B-cells CD20 plays an important role in B-cell activation and regulation. While CD20 is absent on early pro-B cells and plasma cells its presence increases as B-cells mature. Anti-CD20 antibodies such as 2H7 are commonly used in research and treatment to deplete B-cells due to the target's consistent expression in most stages of B-cell development.
Biological function summary

CD20 contributes significantly to calcium ion transport which is essential for the activation process of B-cells. Although CD20 does not belong to a larger protein complex its role centers around forming a calcium channel that allows a sustained influx of calcium into the B-cells. This influx is important for the signaling pathways that govern B-cell activation proliferation and differentiation impacting the immune response efficacy.

Pathways

CD20 is closely involved in the B-cell receptor (BCR) signaling pathway and the Fc gamma R-mediated phagocytosis pathway. These pathways play vital roles in adaptive immunity and immune response modulation. CD20's interaction with proteins like PI3K during BCR signaling enhances receptor-mediated cellular signals subsequently influencing downstream effectors involved in cell growth and survival of B-cells.

CD20 is strongly linked to certain blood cancers and autoimmune diseases including non-Hodgkin's lymphoma and rheumatoid arthritis. These conditions often exploit aberrant B-cell activity or count. CD20's expression on malignant B-cells in non-Hodgkin's lymphoma makes it an effective target for monoclonal antibody therapies such as rituximab an anti-CD20 antibody. Additionally CD20-targeted therapies can help deplete pathogenic B-cells in rheumatoid arthritis highlighting the protein's relevance in disease treatment.

Product protocols

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

Target data

B-lymphocyte-specific membrane protein that plays a role in the regulation of cellular calcium influx necessary for the development, differentiation, and activation of B-lymphocytes (PubMed : 12920111, PubMed : 3925015, PubMed : 7684739). Functions as a store-operated calcium (SOC) channel component promoting calcium influx after activation by the B-cell receptor/BCR (PubMed : 12920111, PubMed : 18474602, PubMed : 7684739).
See full target information MS4A1

Publications (101)

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

JCO precision oncology 9:e2500404 PubMed40749151

2025

Mucin 16-Directed Therapy in Pediatric Sarcomas: Case Evidence of Ubamatamab Efficacy in Epithelioid Sarcoma and Its Implications for Other Sarcoma Subtypes.

Applications

Unspecified application

Species

Unspecified reactive species

Denise M Connolly,Gabriel Revon-Rivière,Rose Chami,Denise Mills,Ailish C Coblentz,Thomas S Uldrick,David A Knorr,Priscila Goncalves,Michael Dobosz,Sumreen Jalal,Sarah Cohen-Gogo,Daniel A Morgenstern

Cancers 17: PubMed40723259

2025

The Prognostic Role of Tertiary Lymphoid Structures and Immune Microenvironment Signatures in Early-Stage -Mutant Lung Adenocarcinoma.

Applications

Unspecified application

Species

Unspecified reactive species

Wei-Hsun Hsu,Chia-Chi Hsu,Min-Shu Hsieh,James Chih-Hsin Yang

ACS omega 10:17416-17434 PubMed40352528

2025

Mercury Can Bond to α-Carbon of Curcumin Increasing Stability in Aqueous Medium and Demonstrated Selective Cytotoxicity against Acute Leukemia.

Applications

Unspecified application

Species

Unspecified reactive species

Sougata Mondal,Upasana Das,Oyendrila Ghosh,Bidisha Maiti,Shuvam Halder,Uttam Pal,Kalyan Kusum Mukherjee,Supratim Ghosh

Oncology letters 29:188 PubMed40007623

2025

Response‑adapted involved site radiation therapy for hepatic marginal zone B‑cell lymphoma: A case report.

Applications

Unspecified application

Species

Unspecified reactive species

Shin-Ting Chen,Yu-Guang Chen,Wen-Yen Huang,Cheng-Hsiang Lo

Anticancer research 45:639-650 PubMed39890197

2025

Efficacy of Second-line Nivolumab Tyrosine Kinase Inhibitors for Renal Cell Carcinoma With Bone Metastases.

Applications

Unspecified application

Species

Unspecified reactive species

Gaku Yamamichi,Taigo Kato,Akihiro Yoshimura,Masaru Tani,Yuki Horibe,Yutong Liu,Nesrine Sassi,Yohei Okuda,Toshiki Oka,Toshihiro Uemura,Akinaru Yamamoto,Y U Ishizuya,Takuji Hayashi,Yoshiyuki Yamamoto,Koji Hatano,Atsunari Kawashima,Tetsuya Takao,Kensaku Nishimura,Shingo Takada,Masao Tsujihata,Norio Nonomura

Scientific reports 15:2211 PubMed39820772

2025

B cells enhance IL-1 beta driven invasiveness in triple negative breast cancer.

Applications

Unspecified application

Species

Unspecified reactive species

Nicole J Toney,Lynn M Opdenaker,Lisa Frerichs,Shirin R Modarai,Aihui Ma,Holly Archinal,Grace O Ajayi,Jennifer Sims-Mourtada

Therapeutic advances in gastroenterology 17:17562848241309445 PubMed39735350

2024

CD8+ cell dominance in immune checkpoint inhibitor-induced colitis and its heterogeneity across endoscopic features.

Applications

Unspecified application

Species

Unspecified reactive species

Min Kyu Kim,Hye-Nam Son,Seung Wook Hong,Sang Hyoung Park,Dong-Hoon Yang,Byong Duk Ye,Jeong-Sik Byeon,Seung-Jae Myung,Suk-Kyun Yang,Shinkyo Yoon,Sung Wook Hwang

Journal of translational medicine 22:1152 PubMed39731106

2024

Association of PD-1 + Treg/PD-1 + CD8 ratio and tertiary lymphoid structures with prognosis and response in advanced gastric cancer patients receiving preoperative treatment.

Applications

Unspecified application

Species

Unspecified reactive species

Xu Liu,Danhua Xu,Chengbei Zhou,Yiqing Zhong,Haigang Geng,Chen Huang,Yanying Shen,Xiang Xia,Chaojie Wang,Chunchao Zhu,Hui Cao

Cancer science 116:350-366 PubMed39601159

2024

Pan-immune-inflammation value predicts immunotherapy response and reflects local antitumor immune response in rectal cancer.

Applications

Unspecified application

Species

Unspecified reactive species

Qianyu Wang,Wentao Zhong,Yi Xiao,Guole Lin,Junyang Lu,Lai Xu,Guannan Zhang,Aijun Liu,Junfeng Du,Bin Wu

Nature communications 15:7713 PubMed39231979

2024

Single-cell and spatial transcriptome analyses reveal tertiary lymphoid structures linked to tumour progression and immunotherapy response in nasopharyngeal carcinoma.

Applications

Unspecified application

Species

Unspecified reactive species

Yang Liu,Shuang-Yan Ye,Shuai He,Dong-Mei Chi,Xiu-Zhi Wang,Yue-Feng Wen,Dong Ma,Run-Cong Nie,Pu Xiang,You Zhou,Zhao-Hui Ruan,Rou-Jun Peng,Chun-Ling Luo,Pan-Pan Wei,Guo-Wang Lin,Jian Zheng,Qian Cui,Mu-Yan Cai,Jing-Ping Yun,Junchao Dong,Hai-Qiang Mai,Xiaojun Xia,Jin-Xin Bei
View all publications

Product promise

We are committed to supporting your work with high-quality reagents, and we're here for you every step of the way. In the unlikely event that one of our products does not perform as expected, you're protected by our Product Promise.
For full details, please see our Terms & Conditions

Please note: All products are 'FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES'.

For licensing inquiries, please contact partnerships@abcam.com