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You are here:Home » Molecular Biology » Growth Factors-Interleukin » Interleukin 1 alpha, Recombinant, Human (Interleukin-1 alpha, IL-1 alpha, IL1-alpha, IL1A, IL-1A, Hematopoietin-1, IL1F1)

Interleukin 1 alpha, Recombinant, Human (Interleukin-1 alpha, IL-1 alpha, IL1-alpha, IL1A,
IL-1A, Hematopoietin-1, IL1F1)

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Specifications

Catalog #I7663B
SourceRecombinant corresponding to 159aa of human Interleukin-1 alpha expressed in E.coli is a single, non-glycosylated, polypeptide chain.
Molecular Weight~18kD
Biological ActivityThe ED50 as determined by the dose-dependent stimulation of mouse D10S cellsis less then 0.001ng/ml, corresponding to a Specific Activity of 1x10 IU/mg.
Dimers and Aggregates 1% (SDS-PAGE)
Protein ContentProtein quantitation was carried out by two independent methods: 1. UV spectroscopy at 280nm using the absorbency value of 1.13 as the extinctioncoefficient for a 0.1% (1mg/ml) solution. This value is calculated by the PC GENEcomputer analysis program of protein sequences (IntelliGenetics). 2. Analysis by RP-HPLC, using a standard solution of chicken IL-1alpha as a Reference Standard.
Storage and StabilityLyophilized powder may be stored at -20°C. Stable for 12 months at -20°C. Reconstitute with sterile ddH2O, HSA or BSA. Aliquot to avoid repeated freezing and thawing. Store at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
Molecular Weight~18kD
Purity~98% (RP-HPLC, Anion-exchange FPLC, SDS-PAGE) Endotoxin: 0.1ng/ug (IEU/ug)
Concentration~1mg/ml
FormSupplied as a lyophilized powder. No preservative added. Reconstitute with sterile dH2O, 0.1% HSA or BSA to 0.1mg/ml.
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.


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