Interleukin 1, alpha, Recombinant, Human (IL-1a, Hematopoietin-1, Lymphocyte-activating Factor, LAF, Endogenous Pyrogen, Leukocyte Endogenous Mediator, LEM, Mononuclear Cell Factor, MCF)

IL-1 alpha is a non-secreted proinflammatory cytokine produced in a variety of cells including monocytes, tissue macrophages, keratinocytes and other epithelial cells. Both IL-1alpha and IL-1beta binds to the same receptor and has similar if not identical biological properties. These cytokines have a broad range of activities including, stimulation of thymocyte proliferation, by inducing IL-2 release, B-cell maturation and proliferation, mitogenic FGF-like activity and the ability to stimulate the release of prostaglandin and collagenase from synovial cells. However, whereas IL-1beta is a secreted cytokine, IL-1alpha is predominantly a cell-associated cytokine.\n\nRecombinant human IL-1 alpha is a single non-glycosylated polypeptide chain containing 159 amino acids corresponding to aa113-271.\n\nAA Sequence:\nSAPFSFLS NVKYNFMRII KYEFILNDAL NQSIIRANDQ YLTAAALHNL DEAVKFDMGA YKSSKDDAKI TVILRISKTQ LYVTAQDEDQ PVLLKEMPEI PKTITGSETN LLFFWETHGT KNYFTSVAHP NLFIATKQDY WVCLAGGPPS ITDFQILENQ A\n\nBiological Activity: \nFully biologically active when compared to standard. The ED50 as determined by the dose-dependent stimulation of murine D10S cells is less then 0.001ng/ml, corresponding to a Specific Activity of 1 x 10e9 IU/mg.\n\nEndotoxin: \n(same/less than) 1EU/ug as determined by LAL method.\n\nStorage and Stability:\nLyophilized powder may be stored at -20 degrees C. Stable for 12 months at -20 degrees C. Reconstitute with sterile buffer or ddH2O, 0.1% BSA. Aliquot to avoid repeated freezing and thawing. Store at -20 degrees C. Reconstituted product is stable for 6 months at -20 degrees 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.

Prices direct from United States Biological

Quick response times

Exclusive Biosave savings/discounts

SPECIFICATIONS

Catalog Number

I7663-07E

Size

2ug

Form

Supplied as a lyophilized powder from PBS, pH 7.5. Reconstitute in sterile ddH2O or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1mg/ml.

Purity

~97% by SDS-PAGE and HPLC analyses.