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Merck
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Key Documents

SRP0705

Sigma-Aldrich

IFNA4

recombinant

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About This Item

分類程式碼代碼:
12352202
NACRES:
NA.32

重組細胞

expressed in E. coli

化驗

70-95% (SDS-PAGE)

形狀

lyophilized powder

分子量

~19.6 kDa

登錄號

P05014

運輸包裝

dry ice

儲存溫度

−70°C

基因資訊

human ... IFNA4(3441)

生化/生理作用

Recombinant Human IFNA4 was expressed in E. coli cells. All known subtypes of IFN- alpha show the same antiviral antiparasitic, antiproliferative activities. IFN-alpha forms are produced by monocytes/macrophages, lymphoblastoid cells, fibroblasts, and a number of different cell types following induction by viruses, nucleic acids, glucocorticoid hormones, and low-molecular weight substances. All IFN-alpha subtypes possess a common conserved sequence region between amino acid positions 115-151 while the amino-terminal ends are variable. Many IFN-alpha subtypes differ in their sequences at only one or two positions. IFN-alpha and IFN-beta are thought to bind to the same receptor. Signal transduction mechanisms elicited after binding of IFN-alpha to its receptors involves tyrosine phosphorylation (see also: PTK; protein tyrosine kinase) of various non-receptor tyrosine kinases belonging to the Janus kinases.

重構

Formulated as a lyophilized protein from a 0.2 um filtered solution in Tris and NaCl, pH 8.0. Upon reconstitution, working aliquots can be stored at 2-8°C for one month, or at -20°C for six months, with a carrier protein without detectable loss of activity.

儲存和穩定性

The lyophilized protein is stable for at least one year from date of receipt at -70°C. Upon reconstitution, this cytokine can be stored in working aliquots at 2-8°C for one month, or at -20°C for six months, with a carrier protein without detectable loss of activity. Avoid repeated freeze/thaw cycles.

儲存類別代碼

10 - Combustible liquids

水污染物質分類(WGK)

WGK 1

閃點(°F)

Not applicable

閃點(°C)

Not applicable


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