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產品名稱：重組人干擾素-α2a蛋白
產品型號：rHuIFN-α2a
產品廠商：KALANG
產品文檔：

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簡單介紹：

重組人干擾素-α2a蛋白與其它公司提供的重組蛋白不同，rHuIFN-α2a蛋白產品為采用CFS的無細胞麥胚蛋白合成系統表達出來的重組蛋白，可表達出對細胞有毒性、易被蛋白酶降解的蛋白；并獲得具有良好的可溶性，并有翻譯后修飾、從而部分具有功能的蛋白.同時獨有的全自動蛋白純化技術則簡便高效，將蛋白純化過程中對蛋白的損傷降低到*小程度.重組人干擾素-α2a蛋白（全長序列）產品可用于Western Blot驗證、抗體制備、蛋白檢測、ELISA等試驗中.

詳情介紹：

重組人干擾素-α2a蛋白

Species Human

Accession P01563

GeneID 3440

Source Yeast

Molecular Weight Approximately 19.2 kDa, a single non-glycosylated polypeptide chain containing 165 amino acids.

Quantity 20μg/100μg/1000μg

AA Sequence 重組人干擾素-α2a蛋白CDLPQTHSLG SRRTLMLLAQ MRKISLFSCL KDRHDFGFPQ EEFGNQFQKA ETIPVLHEMI QQIFNLFSTK DSSAAWDETL LDKFYTELYQ QLNDLEACVI QGVGVTETPL MKEDSILAVR KYFQRITLYL KEKKYSPCAW EVVRAEIMRS FSLSTNLQES LRSKE

Purity > 97 % by SDS-PAGE and HPLC analyses.

Biological Activity Fully biologically active when compared to standard. The specific activity determined by an anti-viral assay is no less than 1.0 × 10⁸ IU/mg.

Physical Appearance Sterile Filtered White lyophilized (freeze-dried) powder.

Formulation 重組人干擾素-α2a蛋白Lyophilized from a 0.2 μm filtered solution in PBS, pH 7.4.

Endotoxin Less than 1 EU/μg of rHuIFN-α2a as determined by LAL method.

Reconstitution We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions.

Storage 重組人干擾素-α2a蛋白This lyophilized preparation is stable at 2-8 °C, but should be kept at -20 °C for long term storage, preferably desiccated. Upon reconstitution, the preparation is stable for up to one week at 2-8 °C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20 °C to -70 °C. Avoid repeated freeze/thaw cycles.

重組人干擾素-α2a蛋白

SDS-PAGE

Reference 1. Tarhini AA, Gogas H, Kirkwood JM. 2012. J Immunol, 189: 3789-93.
2. Zarogoulidis P, Kioumis I, Papanas N, et al. 2012. J Chemother, 24: 173-7.
3. Tohyama M, Yang L, Hanakawa Y, et al. 2012. J Invest Dermatol, 132: 1933-5.
4. Corssmit EP, Heijligenberg R, Hack CE, et al. 1997. Clin Exp Immunol, 107: 359-63.

Background IFN-αs are proteins secreted by leukocyte. They are mainly involved in innate immune response against viral infection. The IFN-α family has 13 subtypes and 23 different variants. The individual proteins have molecular masses between 19-26 kDa and consist of proteins with lengths of 156-166 and 172 amino acids. All IFN-α 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. Naturally occurring variants also include proteins truncated by 10 amino acids at the carboxy-terminal end.

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Species	Human
Accession	P01563
GeneID	3440
Source	Yeast
Molecular Weight	Approximately 19.2 kDa, a single non-glycosylated polypeptide chain containing 165 amino acids.
Quantity	20μg/100μg/1000μg
AA Sequence	重組人干擾素-α2a蛋白CDLPQTHSLG SRRTLMLLAQ MRKISLFSCL KDRHDFGFPQ EEFGNQFQKA ETIPVLHEMI QQIFNLFSTK DSSAAWDETL LDKFYTELYQ QLNDLEACVI QGVGVTETPL MKEDSILAVR KYFQRITLYL KEKKYSPCAW EVVRAEIMRS FSLSTNLQES LRSKE
Purity	> 97 % by SDS-PAGE and HPLC analyses.
Biological Activity	Fully biologically active when compared to standard. The specific activity determined by an anti-viral assay is no less than 1.0 × 10⁸ IU/mg.
Physical Appearance	Sterile Filtered White lyophilized (freeze-dried) powder.
Formulation	重組人干擾素-α2a蛋白Lyophilized from a 0.2 μm filtered solution in PBS, pH 7.4.
Endotoxin	Less than 1 EU/μg of rHuIFN-α2a as determined by LAL method.
Reconstitution	We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions.
Storage	重組人干擾素-α2a蛋白This lyophilized preparation is stable at 2-8 °C, but should be kept at -20 °C for long term storage, preferably desiccated. Upon reconstitution, the preparation is stable for up to one week at 2-8 °C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20 °C to -70 °C. Avoid repeated freeze/thaw cycles.
重組人干擾素-α2a蛋白
SDS-PAGE
Reference	1. Tarhini AA, Gogas H, Kirkwood JM. 2012. J Immunol, 189: 3789-93. 2. Zarogoulidis P, Kioumis I, Papanas N, et al. 2012. J Chemother, 24: 173-7. 3. Tohyama M, Yang L, Hanakawa Y, et al. 2012. J Invest Dermatol, 132: 1933-5. 4. Corssmit EP, Heijligenberg R, Hack CE, et al. 1997. Clin Exp Immunol, 107: 359-63.
Background	IFN-αs are proteins secreted by leukocyte. They are mainly involved in innate immune response against viral infection. The IFN-α family has 13 subtypes and 23 different variants. The individual proteins have molecular masses between 19-26 kDa and consist of proteins with lengths of 156-166 and 172 amino acids. All IFN-α 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. Naturally occurring variants also include proteins truncated by 10 amino acids at the carboxy-terminal end.

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產品名稱：重組人干擾素-α2a蛋白