Human B7-H4 ELISA Kit (ab233633)
Key features and details
- One-wash 90 minute protocol
- Sensitivity: 30 pg/ml
- Range: 23 pg/ml - 1500 pg/ml
- Sample type: Tissue Extracts
- Detection method: Colorimetric
- Assay type: Sandwich (quantitative)
- Reacts with: Human
Overview
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Product name
Human B7-H4 ELISA Kit
See all B7H4 kits -
Detection method
Colorimetric -
Precision
Intra-assay Sample n Mean SD CV% Overall 8 5.8% -
Sample type
Tissue Extracts -
Assay type
Sandwich (quantitative) -
Sensitivity
30 pg/ml -
Range
23 pg/ml - 1500 pg/ml -
Recovery
Sample specific recovery Sample type Average % Range Tissue Extracts 102 94% - 117% -
Assay time
1h 30m -
Assay duration
One step assay -
Species reactivity
Reacts with: Human -
Product overview
Human B7-H4 ELISA Kit (ab233633) is a single-wash 90 min sandwich ELISA designed for the quantitative measurement of B7-H4 protein in tissue extracts. It uses our proprietary SimpleStep ELISA® technology. Quantitate Human B7-H4 with 30 pg/ml sensitivity.
SimpleStep ELISA® technology employs capture antibodies conjugated to an affinity tag that is recognized by the monoclonal antibody used to coat our SimpleStep ELISA® plates. This approach to sandwich ELISA allows the formation of the antibody-analyte sandwich complex in a single step, significantly reducing assay time. See the SimpleStep ELISA® protocol summary in the image section for further details. Our SimpleStep ELISA® technology provides several benefits:
- Single-wash protocol reduces assay time to 90 minutes or less
- High sensitivity, specificity and reproducibility from superior antibodies
- Fully validated in biological samples
- 96-wells plate breakable into 12 x 8 wells stripsA 384-well SimpleStep ELISA® microplate (ab203359) is available to use as an alternative to the 96-well microplate provided with SimpleStep ELISA® kits.
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Notes
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. -
Platform
Pre-coated microplate (12 x 8 well strips)
Properties
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Storage instructions
Store at +4°C. Please refer to protocols. -
Components 1 x 96 tests 10X Human B7-H4 Capture Antibody 1 x 600µl 10X Human B7-H4 Detector Antibody 1 x 600µl 10X Wash Buffer PT (ab206977) 1 x 20ml 50X Cell Extraction Enhancer Solution (ab193971) 1 x 1ml 5X Cell Extraction Buffer PTR (ab193970) 1 x 10ml Antibody Diluent 4BI 1 x 6ml Human B7-H4 Lyophilized Recombinant Protein 2 vials Plate Seals 1 unit Sample Diluent NS (ab193972) 1 x 12ml SimpleStep Pre-Coated 96-Well Microplate (ab206978) 1 unit Stop Solution 1 x 12ml TMB Development Solution 1 x 12ml -
Research areas
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Function
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. -
Tissue specificity
Overexpressed in breast, ovarian, endometrial, renal cell (RCC) and non-small-cell lung cancers (NSCLC). Expressed on activated T- and B-cells, monocytes and dendritic cells, but not expressed in most normal tissues (at protein level). Widely expressed, including in kidney, liver, lung, ovary, placenta, spleen and testis. -
Sequence similarities
Belongs to the immunoglobulin superfamily. BTN/MOG family.
Contains 2 Ig-like V-type (immunoglobulin-like) domains. -
Post-translational
modificationsN-glycosylated. -
Cellular localization
Cell membrane. Expressed at the cell surface. A soluble form has also been detected. - Information by UniProt
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Alternative names
- B7 family member, H4
- B7 H4
- B7 homolog 4
see all -
Database links
- Entrez Gene: 79679 Human
- Omim: 608162 Human
- SwissProt: Q7Z7D3 Human
- Unigene: 546434 Human
Images
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Other - Human B7-H4 ELISA Kit (ab233633)
SimpleStep ELISA technology allows the formation of the antibody-antigen complex in one single step, reducing assay time to 90 minutes. Add samples or standards and antibody mix to wells all at once, incubate, wash, and add your final substrate. See protocol for a detailed step-by-step guide.
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Example of human B7-H4 standard curve in 1X Cell Extraction Buffer PTR.Background-subtracted data values (mean +/- SD) are graphed.
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Interpolated concentrations of native B7-H4 in human testes extract.The concentrations of B7-H4 were measured in duplicates, interpolated from the B7-H4 standard curves and corrected for sample dilution. Undiluted samples are as follows: Human testes extract 45 mg/mL. The interpolated dilution factor corrected values are plotted (mean +/- SD, n=2). The mean B7-H4 concentration was determined to be 1,098 pg/mL.
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Sandwich ELISA - Human B7-H4 ELISA Kit (ab233633)To learn more about the advantages of recombinant antibodies see here.
