Welcome to BioLegend’s one-of-a-kind advanced search. Search by any one of the single fields below or narrow down your searches by using multiple parameters. Looking for an anti-mouse NK cell antibody for IHC? Or looking for a FITC-conjugated antibody against a human marker for dendritic cells to use for flow cytometry? Only BioLegend’s advanced search can provide you with the best answers. If you have further questions, please contact our technical service team at 858-768-5801.
Use this document lookup tool to find Current Product Datasheets, Certificates of Analysis, or MSDS for any antibody products you have purchased from BioLegend.
Use the search box below to perform a site search of BioLegend.com powered by Google™.
The antibody was purified by affinity chromatography, and conjugated with Alexa Fluor® 488 under optimal conditions. The solution is free of unconjugated Alexa Fluor® 488 and unconjugated antibody.
Concentration:
0.5 mg/ml
Storage & Handling:
The antibody solution should be stored undiluted at 4°C and protected from prolonged exposure to light. Do not freeze.
Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis. For immunofluorescent staining, the suggested use of this reagent is ≤ 1.0 µg per 106 cells in 100 µl volume. It is recommended that the reagent be titrated for optimal performance for each application.
* Alexa Fluor® 488 has a maximum emission of 519 nm when it is excited at 488 nm. ** Alexa Fluor® is a registered trademark of Molecular Probes, Inc. Alexa Fluor® dye antibody conjugates are sold under license from Molecular Probes, Inc. for research use only, except for use in combination with microarrays and high content screening, and are covered by pending and issued patents.
Additional reported applications (for the relevant formats) include: in vitro costimulation of T and NK cells1, in vitro blocking of allogeneic mixed leukocyte response and inhibition of MHC-unrestricted CTL cytotoxicity, and in vitro induction of thymocyte differentiation. The LEAF™ purified antibody (Endotoxin <0.1 EU/μg, Azide-Free, 0.2 μm sterile-filtered) is recommended for functional assays (Cat. No. 122004).
Application References:
1. Dennehy KM, et al. 2006. J. Immunol. 176:5725.
C57BL/6 mouse splenocytes stained with E18 Alexa Fluor® 488
CD28 is a 44 kD glycoprotein, also known as Tp44 or T44. It is a member of the Ig superfamily, expressed on thymocytes, most peripheral T cells, and NK cells. In association with CD80 (B7-1) and CD86 (B7-2), CD28 acts as the second signal for T and NK cell activation and proliferation. The E18 antibody blocks the binding of 37.51 antibody to CD28 and costimulates T cell activation and proliferation.
Other Names:
Tp44, T44
Structure:
Ig superfamily, 44 kD
Distribution:
Thymocytes, CD4+, CD8+ peripheral T cells, NK cells
Function:
Costimulates T and NK cells
Ligand Receptor:
CD80 (B7-1), CD86 (B7-2)
Antigen References:
1. Barclay AN, et al. 1997. The Leukocyte Antigen FactsBook Academic Press. 2. Lenschow DJ, et al. 1996. Annu. Rev. Immunol. 14:233. 3. Gross JA, et al. 1992. J. Immunol. 149:380.
*These products may be covered by one or more Limited Use Label Licenses (see the BioLegend Catalog or our website, www.biolegend.com/terms). BioLegend products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products or to provide a service to third parties without written approval of BioLegend. By use of these products you accept the terms and conditions of all applicable Limited Use Label Licenses. Unless otherwise indicated, these products are for research use only and are not intended for human or animal diagnostic, therapeutic or commercial use.
This data display is provided for general comparisons between formats. Your actual data may vary due to variations in samples, target cells, instruments and their settings, staining conditions, and other factors. If you need assistance with selecting the best format contact our expert technical support team.
Purified anti-mouse CD28
C57BL/6 mouse splenocytes stained with purified E18, followed by anti-mouse IgG2b FITC
LEAF™ Purified anti-mouse CD28
C57BL/6 mouse splenocytes stained with LEAF™ E18, followed by anti-mouse IgG2b FITC
FITC anti-mouse CD28
C57BL/6 mouse splenocytes stained with CD3 (145-2C11) PE and E18 FITC
PE anti-mouse CD28
C57BL/6 mouse splenocytes stained with E18 PE
PE/Cy7 anti-mouse CD28
C57BL/6 mouse thymocytes stained with E18 PE/Cy7
APC anti-mouse CD28
C57BL/6 mouse thymocytes stained with E18 APC
Alexa Fluor® 488 anti-mouse CD28
C57BL/6 mouse splenocytes stained with E18 Alexa Fluor® 488
