Product name
Recombinant Human IFN- Alpha 2b protein
Code
CD01613
Biological activity
Fully biologically active when compared to standard. The specific activity determined by an anti-viral assay is no less than 1.6 × 108 IU/mg.
Endotoxin
Less than 0.1 EU/μg of rHuIFN-α2b, Yeast as determined by LAL method.
Synonyms
IFN-α2b, Human, Yeast-derived
Sequence
MCDLPQTHSL GSRRTLMLLA QMRRISLFSC LKDRHDFGFP QEEFGNQFQK AETIPVLHEM IQQIFNLFST KDSSAAWDET LLDKFYTELY QQLNDLEACV IQGVGVTETP LMKEDSILAV RKYFQRITLY LKEKKYSPCA WEVVRAEIMR SFSLSTNLQE SLRSKE
Uniprot Accession
Molecular Weight
Approximately 19.3 kDa, a single polypeptide chain containing 165 amino acids.
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS, pH 7.4.
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.
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.
Storage
-20ºC
Research area
Immunology
