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折扣/货期| 货号：40-278-0.005 mg | 规格：0.005 mg | 目录价：￥3783 |
| 货号：40-278-0.02 mg | 规格：0.02 mg | 目录价：￥5674.5 |
产品详情
* 以下信息仅供参考，详情请以原厂网站为准
产品名称:
IFN beta Recombinant Protein
别名:
IFB, IFF, IFNB, IFB, Interferon beta, Fibroblast interferon, IFN-beta
表达系统:
CHO cells
保存温度:
The lyophilized IFN beta recombinant protein is stable for at least 2 years from date of receipt at -20˚C. Reconstituted IFN beta is stable for at least 3 months when stored in working aliquots with a carrier protein at -20˚C. As with any protein, exposing IFN beta recombinant protein to repeated freeze / thaw cycles is not recommended. When working with proteins care should be taken to keep recombinant protein at a cool and stable temperature.
运输温度:
Blue Ice
产品形式:
Lyophilized
产地:
美国
生产商:
Prosci
功能与背景:
Proteins of this family play an important role in inducing non-specific resistance against a broad range of viral infections. They also affect cell proliferation and modulate immune responses. Produced by peripheral blood leukocytes and lymphoblastoid cells, IFNα is an acid stable molecule that signals through IFNα/βR, which is also used by IFNβ. Both IFNs have similar anti-viral activity and regulate expression of MHC class I antigens. IFNα contains four highly conserved cysteine residues which form two disulfide bonds, one of which is necessary for biological activity. Recombinant human IFNβ is an 20.0 kDa protein containing 166 amino acid residues. Due to glycosylation, IFNβ has an approximate MW of 22.3 kDa based on SDS-PAGE gel and Mass Spectrometry.
纯度:
Greater than 95% by SDS-PAGE gel and HPLC analyses.
Endotoxin level is less than 0.1 ng per μg (1EU/μg).
Endotoxin level is less than 0.1 ng per μg (1EU/μg).
生物活性:
Determined by a cytotoxicity assay using human TF-1 cells. The expected ED50 is ≤ 0.1 ng/ml, corresponding to a specific activity of ≥ 1 x 107units/mg.
Accession #:
NP_002167.1
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