AB243899

Anti-B7H4 antibody [BLR043F]

Recombinant
What is this?

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(1 Publication)

Rabbit Recombinant Monoclonal B7H4 antibody. Suitable for IHC-P, ICC, IP and reacts with Human samples. Cited in 1 publication. Immunogen corresponding to Recombinant Fragment Protein within Human VTCN1.

View Alternative Names

B7H4, UNQ659/PRO1291, VTCN1, V-set domain-containing T-cell activation inhibitor 1, B7 homolog 4, B7h.5, Immune costimulatory protein B7-H4, Protein B7S1, T-cell costimulatory molecule B7x, B7-H4

3 Images

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Immunocytochemistry - Anti-B7H4 antibody [BLR043F] (AB243899)

Formalin-fixed, paraffin-embedded NIH : OVCAR-3 (human ovary adenocarcinoma cell line) cells labeling B7H4 using ab243899 at 1/100 dilution in ICC analysis. A HRP-conjugated goat-anti rabbit IgG was used as the secondary. DAB staining.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-B7H4 antibody [BLR043F] (AB243899)

IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-B7H4 antibody [BLR043F] (AB243899)

Formalin-fixed, paraffin-embedded human ovarian carcinoma tissue stained for B7H4 using ab243899 at 1/100 dilution in immunohistochemical analysis. A HRP-conjugated goat anti-rabbit antibody was used as the secondary. DAB staining.

IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-B7H4 antibody [BLR043F] (AB243899)

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of human lung carcinoma tissue labelling B7H4 with ab243899 at 1/250 dilution.

Key facts

Host species

Rabbit

Clonality

Monoclonal

Clone number

BLR043F

Isotype

IgG

Carrier free

Reacts with

Human

Applications

IP, IHC-P, ICC

applications

Immunogen

Recombinant Fragment Protein within Human VTCN1. The exact immunogen used to generate this antibody is proprietary information.

Q7Z7D3

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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"}, "ICC" : {"fullname" : "Immunocytochemistry", "shortname":"ICC"}, "IP" : {"fullname" : "Immunoprecipitation", "shortname":"IP"}, "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": "1/100 - 1/500", "IHCP-species-notes": "", "ICC-species-checked": "testedAndGuaranteed", "ICC-species-dilution-info": "1/100 - 1/500", "ICC-species-notes": "", "IP-species-checked": "testedAndGuaranteed", "IP-species-dilution-info": "", "IP-species-notes": "Use 20μl/mg lysate.", "WB-species-checked": "notRecommended", "WB-species-dilution-info": "1/1000", "WB-species-notes": "" } } }

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Product details

REACH authorisation
Abcam has not and does not intend to apply for the REACH Authorisation of customers' uses of products that contain European Authorisation list (Annex XIV) substances.
It is the responsibility of our customers to check the necessity of application of REACH Authorisation, and any other relevant authorisations, for their intended uses.

This product is sold under License from Bethyl Laboratories, Inc.

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Properties and storage information

Form

Liquid

Purification notes

Recombinant antibody was purified from cell culture supernatant.

Storage buffer

pH: 7.8 - 8.6 Preservative: 0.09% Sodium azide Constituents: 98% Borate buffered saline, 0.1% 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

+4°C

Aliquoting information

Upon delivery aliquot

Storage information

Avoid freeze / thaw cycle

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Supplementary information

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

B7-H4 also known as VTCN1 or B7x is a member of the B7 family of immunoregulatory proteins. It has an approximate molecular mass of 50 kDa. B7-H4 expression is detected on the surface of various cells including B cells T cells monocytes and some cancer cells. Its expression is often inducible; immune cells can express B7-H4 in response to specific conditions or signals in the environment.

Biological function summary

B7-H4 acts as an immune checkpoint molecule that negatively regulates T cell immunity. It does not form a known complex with other proteins but instead interacts directly with T cells. By inhibiting T cell activation and proliferation B7-H4 contributes to the regulation of immune responses helping to maintain self-tolerance and prevent autoimmunity.

Pathways

B7-H4 is involved in the regulation of immune checkpoints prominently in the pathways related to immune tolerance and suppression. It plays a critical role in the pathways that modulate tumor evasion of the immune system. B7-H4 is related to other immune checkpoint proteins such as PD-L1 which are also pivotal in immune regulation and therapy targets.

B7-H4 is connected to cancer progression and autoimmune conditions. Overexpression of B7-H4 in certain cancers such as ovarian and breast cancer associates with tumor immune evasion allowing tumors to grow unchecked by the immune system. Its expression links with proteins like CTLA-4 in maintaining immune suppression. B7-H4 modifications could serve as a potential target in cancer immunotherapy aiming to enhance the immune system's ability to combat malignancies.

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Product protocols

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

Visit the General protocols
Visit the Troubleshooting

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Target data

Negatively regulates T-cell-mediated immune response by inhibiting T-cell activation, proliferation, cytokine production and development of cytotoxicity. When expressed on the cell surface of tumor macrophages, plays an important role, together with regulatory T-cells (Treg), in the suppression of tumor-associated antigen-specific T-cell immunity. Involved in promoting epithelial cell transformation.

See full target information VTCN1

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Publications (1)

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

Oncology research 33:1679-1693 PubMed40612868

2025

N6-Methyladenosine Promotes the Transcription of c-Src Kinase via IRF1 to Facilitate the Proliferation of Liver Cancer.

Applications

Unspecified application

Species

Unspecified reactive species

Yanxi Peng,Honggen Yuan,Zhanjie Jiang,Xiaoqing Ou,Qian Zhang,Kexin Yi,Yanbin Meng,Qun Xie

View all publications

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