Anti-Human CD28 Recombinant Antibody (SAA0010) (HY422107)

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Overview

Catalog No.	HY422107
Description	Anti-Human CD28 Antibody (SAA0010) [SAA0010] (HY422107) is a human monoclonal antibody detecting CD28 in ELISA, FCM, IHC, WB. Suitable for Human. Highlights ●Multi-Application — Validated across multiple applications. ●Flow Cytometry — Validated for flow cytometry applications.
Species reactivity	Human
Applications	ELISA, FCM, IHC, WB
Host species	Human
Isotype	IgG4
Clone ID	SAA0010
Clonality	Monoclonal
Target	CD28, TP44, T-cell-specific surface glycoprotein CD28, RHC83401
Endotoxin level	Please contact with the lab for this information.
Purity	>95% as determined by SDS-PAGE.
Purification	Protein A/G purified from cell culture supernatant.
Accession	P10747
Form	Liquid
Storage buffer	0.01M PBS, pH 7.4. Please refer to the specific buffer information in the hardcopy of datasheet or the lot-specific COA.
Stability and Storage	Use a manual defrost freezer and avoid repeated freeze thaw cycles. Store at 2 to 8°C for frequent use. Store at -20 to -80°C for twelve months from the date of receipt.
Background	T-cell-specific surface glycoprotein CD28 is a ~25 kDa protein. Receptor that plays a role in T-cell activation, proliferation, survival and the maintenance of immune homeostasis. Functions not only as an amplifier of TCR signals but delivers unique signals that control intracellular biochemical events that alter the gene expression program of T-cells. Stimulation upon engagement of its cognate ligands CD80 or CD86 increases proliferation and expression of various cytokines in particular IL2 production in both CD4(+) and CD8(+) T-cell subsets. Mechanistically, ligation induces recruitment of protein kinase C-theta/PRKCQ and GRB2 leading to NF-kappa-B activation via both PI3K/Akt-dependent and -independent pathways. In conjunction with TCR/CD3 ligation and CD40L costimulation, enhances the production of IL4 and IL10 in T-cells. 1. Gimmi, CD. et al. (1991) Proceedings of the National Academy of Sciences of the United States of America 88, 6575-9. PMID: 1650475 2. Raab, M. et al. (1995) Proceedings of the National Academy of Sciences of the United States of America 92, 8891-5. PMID: 7568038 3. Skånland, SS. et al. (2014) The Biochemical journal 460, 399-410. PMID: 24665965 4. Collins, AV. et al. (2002) Immunity 17, 201-10. PMID: 12196291 5. Wu, H. et al. (2022) Structure (London, England : 1993) 30, 803-812.e5. PMID: 35397202 6. Kong, KF. et al. (2011) Nature immunology 12, 1105-12. PMID: 21964608 7. Blotta, MH. et al. (1996) Journal of immunology (Baltimore, Md. : 1950) 156, 3133-40. PMID: 8617933
Note	For research use only.

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Bioactivity

SEC-HPLC detection for Anti-Human CD28 Antibody (ABS1952).
Flow Cytometry

Flow-cytometry using anti-human CD28 antibody.RPMI-8226 cells were stained with an irrelevant antibody (Blue Histogram) or an anti-human CD28 antibody monoclonal antibody (Catalog # HY422107 ,Green Histogram) at a concentration of 5 µg/ml for 30 mins at RT. After washing, bound antibody was detected using a FITC conjugated goat anti-human antibody (Catalog # HF690414) and cells analysed on a NovoCyte Flow Cytometer.
Flow CytoMetry

Flow-cytometry using anti-human CD28 antibody. Untransfected cells (blue Histogram) and Transfected cells (Yellow Histogram) were stained with an anti-human CD28 monoclonal antibody (Catalog: HY422107) at a concentration of 5 µg/ml for 30 mins at RT. After washing, bound antibody was detected using a Goat Anti-Human IgG H&L Polyclonal Antibody, FITC (abinScience: HF690414) and cells analysed on a NovoCyte Flow Cytometer.