Recombinant Mouse IL-5
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BackgroundIL-5 is a 26 kD TH2 cytokine and a homodimeric glycoprotein that is part of the hematopoietic family. IL-5 stimulates B cell growth as well as increases Ig secretion. It is the main factor that promotes the terminal differentiation of eosinophil progenitors and enhances the effector capacity of mature eosinophils. IL-5 is a major regulator of eosinophil accumulation in tissues. In fact, in Hodgkin lymphoma, the characteristically observed eosinophilia is suspected to result from an increased production of IL-5. IL-5 may also be the cause of several allergic diseases including asthma, where it is thought that eosinophils have a significant role in the disease pathology. There are several mAbs currently in use that target IL-5 for the treatment of severe eosinophilic asthma. Protein DetailsPurity >97% by SDS-PAGE and analyzed by silver stain. Endotoxin Level <1.0 EU/µg as determined by the LAL method Protein Accession No. Amino Acid Sequence meipmstvvk etltqlsahr alltsnetmr lpvpthknhq lcigeifqgl dilknqtvrg gtvemlfqnl slikkyidrq kekcgeerrr trqfldylqe flgvmstewa meg
N-terminal Sequence Analysis Met21 State of Matter Solution Predicted Molecular Mass The predicted molecular weight of Recombinant Mouse IL-5 is Mr 13.1 kDa. However, the actual molecular weight as observed by migration on SDS-PAGE is Mr 15-18 kDa. Predicted Molecular Mass 13.1 Formulation This recombinant protein solution was 0.2 µm filtered and formulated in modified Dulbecco’s phosphate buffered saline (1X PBS) pH 7.2 – 7.3 with no calcium, magnesium, or preservatives present. Storage and Stability Working aliquots of this recombinant protein solution are stable for up to twelve months at -20°C to -70°C in a manual defrost freezer. Upon thawing, in the presence of a carrier protein, this recombinant protein can be stored at 2° - 8°C for one month without detectable loss of activity. For long-term storage, aliquot and freeze at -20°C to -70°C in a manual defrost freezer. Avoid repeated freeze thaw cycles. Country of Origin USA Shipping Dry Ice NCBI Gene Bank References & Citations1. Capron, M. et al. (1994) J Exp Med 179: 703 2. Graber, P. et al. (1993) Nature 363: 172 3. Inokuma, S. et al. (2005) Int Arch Allergy Immunol 1: 55 Certificate of AnalysisIMPORTANT Use lot specific datasheet for all technical information pertaining to this recombinant protein. |
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