Pay in installments of $74.00 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Sep 1 - Sep 6
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Biotinylated B7-1 Avi&His Tag Protein, HumanProduct Specification Species Human Antigen B7 1 Synonyms CD80, B7, B7 1, B7. 1, BB1, CD28LG, CD28LG1, LAB7 Accession P33681 1 Amino Acid Sequence Val35 Asn242, with C terminal Avi&His Tag VIHVTKEVKEVATLSCGHNVSVEELAQTRIYWQKEKKMVLTMMSGDMNIWPEYKNRTIFDITNNLSIVILALRPSDEGTYECVVLKYEKDAFKREHLAEVTLSVKADFPTPSISDFEIPTSNIRRIICSTSGGFPEPHLSWLENGEELNAINTTVSQDPETELYAVSSKLDFNMTTNHSFMCLIKYGHLRVNQTFNWNTTKQEHFPDNGGGSGLNDIFEAQKIEWHEHHHHHHHH Expression System HEK293
Product Specification
| Species | Human |
| Antigen | B7-1 |
| Synonyms | CD80, B7, B7-1, B7.1, BB1, CD28LG, CD28LG1, LAB7 |
| Accession | P33681-1 |
| Amino Acid Sequence | Val35-Asn242, with C-terminal Avi&His Tag VIHVTKEVKEVATLSCGHNVSVEELAQTRIYWQKEKKMVLTMMSGDMNIWPEYKNRTIFDITNNLSIVILALRPSDEGTYECVVLKYEKDAFKREHLAEVTLSVKADFPTPSISDFEIPTSNIRRIICSTSGGFPEPHLSWLENGEELNAINTTVSQDPETELYAVSSKLDFNMTTNHSFMCLIKYGHLRVNQTFNWNTTKQEHFPDNGGGSGLNDIFEAQKIEWHEHHHHHHHH |
| Expression System | HEK293 |
| Molecular Weight | 43-55kDa |
| Purity | ＞95% by SDS-PAGE |
| Endotoxin | <0.1EU/μg |
| Conjugation | Biotin |
| Tag | Avi Tag, His Tag |
| Physical Appearance | Lyophilized Powder |
| Storage Buffer | PBS, pH7.4 |
| Reconstitution | Reconstitute at 0.1-1 mg/ml according to the size in ultrapure water after rapid centrifugation. |
| Stability & Storage | · 12 months from date of receipt, lyophilized powder stored at -20 to -80℃. · 3 months, -20 to -80℃ under sterile conditions after reconstitution. · 1 week, 2 to 8℃ under sterile conditions after reconstitution. · Please avoid repeated freeze-thaw cycles. |
| Reference | 1. Carin C. Stamper, Yan Zhang, James F. Tobin, David V. Erbe, Shinji Ikemizu, Simon J. Davis, Mark L. Stahl, Jasbir Seehra, William S. Somers & Lidia Mosyak: Crystal structure of the B7-1/CTLA-4 complex that inhibits human immune responses, Nature volume 410, pages608-611 (2001). |
Background
As the first identified B7 family member, CD80 is widely expressed in a broad spectrum of tissues, even on some malignant tumor cells, thereby suggesting the potential mechanism of immune evasion of tumor cells.CD80 is recognized as one of the most potent costimulatory molecules by which immune cells limit malignant growth. It is upregulated upon cell stress and it is critical for efficacious immune surveillance during carcinogenesis. Low surface expression of CD80 was reported as an immune escape mechanism of colon carcinoma; on the other hand, its expression resulted enhanced in high-frequency microsatellite instability (MSI) colorectal cancers, a CRC subtype which is highly immunogenic and associated with a better prognosis. Both in vivo and in vitro studies showed that the upregulation of CD80 on tumor cell surface successfully activates antitumor immune responses, while its expression is frequently lost during tumor progression probably due to selective pressure by the immune system. Thus, to develop effective approaches for cancer immunotherapy, strategies for enhancing CD80 expression in tumors are urgently required.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy