Recombinant Human CD80/B7-1 Protein, C-His (HW630011) expressed in Mammalian Cells, spanning Met1-Asn242. Purity: >90% by SDS-PAGE.
Highlights
●His-Tagged — N-terminal 6×His tag for IMAC purification.
●Mammalian Expression — Proper folding and native glycosylation.
●High Purity — >90% purity verified by SDS-PAGE.
Система экспрессии
Mammalian cells
Номер доступа
P33681
Длина белка
Met1-Asn242
Применения
ELISA, Immunogen, SDS-PAGE, WB, Bioactivity testing in progress
Виды
Homo sapiens (Human)
Характер
Recombinant
Уровень эндотоксинов
Please contact with the lab for this information.
Чистота
>90% as determined by SDS-PAGE.
Прогнозируемая молекулярная масса
28.57 kDa
Форма
Lyophilized
Буфер хранения
Lyophilized from a solution in PBS pH 7.4, 1 mM EDTA, 4% Trehalose, 1% Mannitol.
Пожалуйста, обратитесь к конкретной информации о буфере в печатной версии даташита или в индивидуальном сертификате качества (COA) для партии.
Реконституция
Reconstitute in sterile water for a stock solution. Adjust the volume of sterile water so that, after reconstitution, the final stock concentration matches the value indicated on the product label or datasheet.
RECONSTITUTION PROTOCOL
1. Allow the product to be reconstituted and the reconstitution diluent to reach room temperature.
2. Tap or briefly centrifuge the product vial before opening to dislodge any lyophilized material that may be dispersed on the wall or cap of the vial.
3. Use the diluent and stock concentration recommended in the product datasheet. If preparing a stock concentration higher than recommended, contact Technical Service.
4. After adding the diluent, re-cap the vial and invert gently by hand or place on a slow rocking platform to allow the reconstitution diluent to coat all the surfaces inside the vial. Note: Do not mix by vortexing or by pipetting the material up and down.
5. Allow the vial to sit at room temperature with gentle agitation for at least 15 minutes before aliquotting or using.
6. Store the reconstituted material in single use aliquots in polypropylene or siliconized tubes. Aliquots of 10 μL or larger are recommended.
Доставка
In general, proteins are provided as lyophilized powder/frozen liquid. They are shipped out with dry ice/blue ice unless customers require otherwise.
Устойчивость и хранение
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.
T-lymphocyte activation antigen CD80 (B7-1) is a ~33 kDa protein. Costimulatory molecule that belongs to the immunoglobulin superfamily that plays an important role in T-lymphocyte activation. Acts as the primary auxiliary signal augmenting the MHC/TCR signal in naive T-cells by acting as a ligand for the CD28 receptor which is constitutively expressed on the cell surface of T-cells. In turn, activates different signaling pathways such as NF-kappa-B or MAPK leading to the production of different cytokines. Also acts as an inhibitor of T-cell activation by acting as a ligand for CTLA4, a decoy receptor, thereby blocking CD28-mediated T-cell priming. In addition, CD28/CD80 costimulatory signal stimulates glucose metabolism and ATP synthesis of T-cells by activating the PI3K/Akt signaling pathway.
1. Lu, B. et al. (2024) Acta pharmacologica Sinica 45, 1214-1223. PMID: 38467718
2. Collins, AV. et al. (2002) Immunity 17, 201-10. PMID: 12196291
3. Boulougouris, G. et al. (1999) Journal of immunology (Baltimore, Md. : 1950) 163, 1809-16. PMID: 10438913
4. Vandenborre, K. et al. (1999) Immunology 98, 413-21. PMID: 10583602
5. Stamper, CC. et al. (2001) Nature 410, 608-11. PMID: 11279502
6. Frauwirth, KA. et al. (2002) Immunity 16, 769-77. PMID: 12121659
7. Kennedy, A. et al. (2023) The EMBO journal 42, e111556. PMID: 36727298
Примечание
For research use only.
Изображения
SDS-PAGE
SDS-PAGE for Recombinant Human CD80/B7-1 Protein, C-His
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