Recombinant Human SECTM1 Fc Chimera Protein, CF Summary
Product Specifications
Optimal dilutions should be determined by each laboratory for each application.
| Human SECTM1 (Gln29-Gly145) Accession # Q8WVN6 |
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.
7559-ST
| Formulation | Lyophilized from a 0.2 μm filtered solution in PBS. |
| Reconstitution | Reconstitute at 100 μg/mL in PBS. |
| Shipping | The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. |
| Stability & Storage: | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
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Reconstitution Calculator
Background: SECTM1
SECTM1 (secreted and transmembrane 1), also called K12, is either found as an approximately 27 kDa intracellular type I transmembrane protein that shows a perinuclear, Golgi‑like staining pattern, or as a 20 kDa soluble, secreted form (1, 2). SECTM1 protein expression is detected in some myeloid cells, such as stimulated monocytes, immature monocyte‑derived dendritic cells, and granulocytes (1‑3). In the thymus, it is also expressed by epithelia and fibroblasts (2). Stimulation with IFN‑ gamma is often necessary to detect SECTM1 expression, and it is thought to be an interferon early‑response gene (1‑5). Human SECTM1 cDNA encodes 248 amino acids (aa), including a 28 aa signal sequence, a 117 aa extracellular domain (ECD) with one potential N‑linked glycosylation site, a 21 aa transmembrane sequence, and an 82 aa cytoplasmic sequence (1). The ECD shows some similarity to Ig domains (1). The human SECTM1 ECD shares limited (approximately 45‑51%) aa sequence identity with mouse SECTM1 (a or b) and rat SECTM1 ECD. SECTM1 from human and mouse each show species‑specific binding of CD7 and co‑stimulate CD4+ and CD8+ T cells through CD7, either alone or through synergy with CD28 (2‑4). Immobilized recombinant human SECTM1/Fc also enhances human NK cell expression of activation markers such as CD25, CD69 and CD54 (4).
- Slentz-Kesler, K.A. et al. (1998) Genomics 47:327.
- Lam, G.K. et al. (2005) J. Clin. Immunol. 25:41.
- Wang, T. et al. (2012) J. Leukoc. Biol. 91:449.
- Lyman, S.D. et al. (2000) J. Biol. Chem. 275:3431.
- Huyton, T. et al. (2011) Biochim. Biophys. Acta 1810:1294.
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