Recombinant Human Interleukin-1alpha/IL-1alpha produced in E. coli is a single non-glycosylated polypeptide chain containing 159 amino acids with a molecular mass of 18 kDa.
纯度
> 95 % as determined by reducing SDS-PAGE.
过滤
0.2 μm filtered
内毒素水平
Less than 0.1 ng/μg (1 IEU/μg) as determined by LAL test
It is not recommended to reconstitute to a concentration less than 100 μg/mL. Dissolve the lyophilized protein in ddH2O. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.
缓冲液
Lyophilized from a 0.2 μm filtered solution of 20 mM TrisHCl, 150 mM NaCl, pH 7.5.
注意事项
Always centrifuge tubes before opening. Do not mix by vortex or pipetting.
储存条件
4 °C/-20 °C/-80 °C
储存方法
Lyophilized protein should be stored at < -20°C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 4-7°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.
Interleukin-1 alpha (IL1alpha) is a cytokine member of the interleukin-1 family. IL-1 consists of two distinct forms: IL1alpha and IL1beta that recognize the same cell surface receptors but are distinct proteins with approximately 25% amino acid sequence identity. IL1alpha is constitutively produced by epithelial cells and plays an essential role in maintenance of skin barrier function. Upon stimulation, a wide variety of cells including osteoblasts, monocytes, macrophages can be induced to express IL1alpha. IL1alpha possesses a wide range of metabolic, physiological, haematopoietic activities, and is critically involved in the regulation of the immune responses and inflammatory responses. Alternative Names: Interleukin-1 Alpha, IL-1 Alpha, Hematopoietin-1, IL1A, IL1F1