Recombinant Human IGSF8/CD316 Fc Chimera Protein, CF Summary
Product Specifications
Human IGSF8 (Arg28-Thr579) Accession # Q969P0-1 | IEGRMD | Human IgG1 (Pro100-Lys330) |
N-terminus | C-terminus | |
Analysis
Product Datasheets
Carrier Free
CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.
In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.
1241-S8
Formulation | Lyophilized from a 0.2 μm filtered solution in PBS. |
Reconstitution | Reconstitute at 500 μg/mL in PBS. |
Shipping | The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. |
Stability & Storage: |
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Scientific Data
![Recombinant Human IGSF8/CD316 Fc Chimera Protein Binding Activity Recombinant Human IGSF8/CD316 Fc Chimera Protein Binding Activity](https://aeroglobalimagesuat.blob.core.windows.net/images/datasheets/protein/IGSF8_1241S8_2268.jpg)
When Recombinant Human IGSF8/CD316 Fc Chimera (Catalog # 1241-S8) is immobilized at 1 µg/mL (100 µL/well), Biotinylated Recombinant CD81 Fc Chimera binds with an ED50 of 1.2-7.2 μg/mL.
![Recombinant Human IGSF8/CD316 Fc Chimera Protein SDS-PAGE Recombinant Human IGSF8/CD316 Fc Chimera Protein SDS-PAGE](https://aeroglobalimagesuat.blob.core.windows.net/images/datasheets/protein/IGSF8_1241S8_2252.jpg)
2 μg/lane of Recombinant Human IGSF8/CD316 Fc Chimera was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 86-113 kDa and 170-230 kDa, respectively.
Reconstitution Calculator
Background: IGSF8/CD316
IGSF8 (Immunoglobulin superfamily member 8), also known as EWI-2, KCT-4, LIR-D1, and PGRL, is a 75-kDa cell surface protein belonging to the immunoglobulin superfamily (1). IGSF8 is widely expressed, with pronounced mRNA expression in the brain and protein expression on peripheral blood lymphocytes and hepatocytes where it colocalizes with CD81 (1-3). It strongly associates with tetraspanins CD9 and CD81 which may act as physical linkers to form a complex with alpha 3 beta 1 integrin that may regulate cell aggregation and motility on laminin-5 (4). Human IGSF8 is synthesized as a 613 aa protein that includes a 27 aa signal peptide, a 552 aa extracellular domain (ECD), a 21 aa transmembrane segment, and a 13 aa cytoplasmic tail. Within the ECD, human IGSF8 shares 91% and 90% aa sequence identity with mouse and rat IGSF8, respectively. IGSF8 is an inducible receptor for Heat Shock Protein A8 (HSPA8) on activated dendritic cells (5). IGSF8 can interact with alpha -Actinin to regulate T cell immune synapses and HIV viral infection (6). In human glioma patients, low IGSF8 expression correlates with shorter survival time. Studies have shown that re-expression of IGSF8 in malignant glioblastoma cell lines inhibited glioblastoma colony formation in soft agar and caused diminished cell motility and invasion (7).
- Clark, K.L. et al. (2001) J. Immunol. 167:5115.
- Stipp, C.S. et al. (2001) J. Biol. Chem. 276:40545.
- Charrin, S. et al. (2003) Biochem. J. 373:409.
- Stipp, C.S. et al. (2003) J. Cell Biol. 163:1167.
- Kettner, S. et al. (2007) Mol Cell Biol. 27:7718.
- Gordón-Alonso, M. et al. (2012) J Immunol 189:689.
- Kolesnikova, T. et al. (2009) Neoplasia.11:77.
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