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- cyt-204
- 2025年12月24日
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- 详细信息
- 文献和实验
- 技术资料
- 保存条件：
for future use below -18°C
- 保质期：
See instructions
- 英文名：
IFNA2A
- 库存：
部分小规格有备货
- 供应商：
上海经科化学科技有限公司
- CAS号：
无
- 规格：
20ug/100ug/1mg
| 规格： | 20ug | 产品价格： | ￥1080.0 |
|---|---|---|---|
| 规格： | 100ug | 产品价格： | ￥2415.0 |
| 规格： | 1mg | 产品价格： | ￥14500.0 |
CATALOGUE NUMBER
CYT-204
SYNONYMS
Leukocyte IFN, B cell IFN, Type I IFN, IFNA2, IFN-a 2a, Interferon-alpha-2a.
INTRODUCTION
IFN-alpha is produced by macrophages and has antiviral activities. IFN stimulates the production of two enzymes: protein kinase and an oligoadenylate synthetase.
DESCRIPTION
IFN Alpha Human 2a Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 165 amino acids and having a molecular mass of 19241 Dalton. The difference between IFNA2A and IFNA2B is in the amino acid present at position 23. IFN-alpha 2a has a lysine at that position 23 while IFN-alpha 2b has arginine.
The Interferon-alpha-2a gene was obtained from human leukocytes.
The IFNA2A is purified by proprietary chromatographic techniques.
SOURCE
PHYSICAL APPEARANCE
FORMULATION
SOLUBILITY
It is recommended to reconstitute the lyophilized Interferon-alpha-2a in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
STABILITY
Lyophilized IFNA-2A although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution IFN-alpha 2a should be stored at 4°C between 2-7 days and for future use below -18°C.
For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
Please prevent freeze-thaw cycles.
PURITY
(a) Analysis by RP-HPLC.
(b) Analysis by SDS-PAGE.
AMINO ACID SEQUENCE
CDLPQTHSLGSRRTLMLLAQMRKISLFSCLKDRHDFGFPQEEFGNQFQKAETIPVLHEM IQQIFNLFSTKDSSAAWDETLLDKFYTELYQQLNDLEACVIQGVGVTETPLMKEDSILAV RKYFQRITLYLKEKKYSPCAWEVVRAEIMRSFSLSTNLQESLRSKE.
N-terminal methionine has been completely removed enzymatically.
BIOLOGICAL ACTIVITY
PROTEIN CONTENT
1. UV spectroscopy at 280 nm using the absorbency value of 0.924 as the extinction coefficient for a 0.1% (1mg/ml) solution. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics).
2. Analysis by RP-HPLC, using a calibrated solution of IFN-a 2a as a Reference Standard.
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文献和实验1.Title:Gender specificity of altered human immune cytokine profiles in aging.
Publication:Published online before print May 7, 2010, doi: 10.1096/fj.10-160911 September 2010 The FASEB Journal vol. 24 no. 9 3580-3589
motifs located prevalently in the 3′ untranslated regions of target messenger RNAs (mRNA). Interferon-alpha-2a (IFNα) induces a large set of protein coding genes mediating antiproliferative and antiviral responses. Here we use a global microarray-based
Many cytokines alter the half-lives and stabilities of mRNAs for other cytokines (1 ) and enzymes that may be related to disease progression. For example, IL-1β stabilizes the mRNA for human interstitial collagenase-1 in normal fibroblasts
Modulation of human interferon- biosynthesis by antisense oligodeoxynucleotides
We investigated the inhibition of human interferon-γ (HuIFN-γ) production in cultures of lymphocytes with the use of the antisense strategy. Out of a series of antisense oligodeoxynucleotides (ODN) complementary to different regions of the HuIFN
技术资料