Human Interleukin-1 alpha Recombinant

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Human Interleukin-1 alpha Recombinant

$70.00$4,700.00


accession P01583


Source Optimized DNA sequence encoding Human Interleukin-1 alpha mature chain was expressed in Escherichia Coli.
Molecular weight Mature human IL-1 alpha, is generated by the proteolytic removal of the signal peptideand propeptide. The molecule has a calculated molecular mass of approximately kDa. Recombinant Interleukin-1a is a monomer protein consisting of160 amino acid residue subunits and migrates as an approximately18 kDa protein under non-reducing conditions and reducing conditions in SDS-PAGE.
Purity >97%, as determined by SDS-PAGE and HPLC
Biological Activity The ED(50) was determined by thedose-dependent stimulation of murine D10S cells is ≤.002 ng/ml, corresponding to a specific activity of ≥2 x units/mg.
Protein Sequence MAKVPDMFED LKNCYSENEE DSSSIDHLSL NQKSFYHVSY GPLHEGCMDQ SVSLSISETS KTSKLTFKES MVVVATNGKV LKKRRLSLSQ SITDDDLEAI ANDSEEEIIK PRSAPFSFLS NVKYNFMRII KYEFILNDAL NQSIIRANDQ YLTAAALHNL DEAVKFDMGA YKSSKDDAKI TVILRISKTQ LYVTAQDEDQ PVLLKEMPEI PKTITGSETN LLFFWETHGT KNYFTSVAHP NLFIATKQDY WVCLAGGPPS ITDFQILENQ A
Endotoxin Endotoxin content was assayed using a LAL gel clot method. Endotoxin level was found to be less than.1 ng/µg(1EU/µg).
Presentation Interleukin-1 alphawas lyophilized from a.2 μm filtered PBS solution pH7.0.
Reconstitution A quick spin of the vial followed by reconstitution in distilled water to a concentration not less than.1 mg/mL. This solution can then be diluted into other buffers.
Storage The lyophilized protein is stable for at least years from date of receipt at -20° C. Upon reconstitution, this cytokine can be stored in working aliquots at° -° C for one month, or at -20° C for six months, with a carrier protein without detectable loss of activity. Avoid repeated freeze/thaw cycles.
Usage This cytokine product is for research purposes only.It may not be used for therapeutics or diagnostic purposes.


Biological Process Inflammatory-response
Molecular function Cytokine
Molecular function Mitogen
Molecular function Pyrogen

Methods

Size separation of proteins in CM of PDT-treated T-Ep.

IL-1α
  • Detection of the FSA activity by chromatographed COS-1 cell-derived IL-1α is included in (B and C).

Soluble mediator secretion by normal and OA synovial tissue explants (STEs) with or without IL-1α.

10 ng/ml IL-1α
  • Graphs demonstrate all soluble mediators which were significantly (p<0.01) different between A. normal (black bars) and OA (grey bars) STEs and B. normal and OA STEs under pro-inflammatory (IL-1α) conditions.

Cell Culture

  • VSMCs, EL4, HEK, and HeLa cells were cultured in DMEM and Jurkat and THP-1 cells in RPMI 1640, all supplemented with penicillin, streptomycin, L-glutamine, and 10% FCS.
  • Human monocyte-derived macrophages were differentiated as described previously (2, clarified, and stored at −80°C.
  • Cells were also made necrotic by incubation with 7-BIO (25 μM) or digitonin (0.1%) (data not shown) or by overnight hypoxic exposure.
  • To activate inflammasomes, cells were treated with LPS (1 μg/ml; 4 hr), followed by ATP (5 mM) or Nigericin (20 μM) for 30 min.
  • Calpain activity was determined with Calpain-Glo .
  • VSMCs, HEK, and THP-1 cells were transfected with pcDNA3 with nucleofection or FugeneHD .

Bacterial stimuli and TLR ligands induce distinct immune responses in fetal, neonatal and adult keratinocytes.

IL1α
  • IL1α was used as positive control, cell culture medium (untreated) and TSB as negative controls.

TAK1 exerts its functional effects through activation of NF -κB pathways by phosphorylation at Ser412 (A) Western blot analysis demonstrated that p-TAK1 at Thr184/187 was just found in HEK293 and Hela cells only, while p-TAK1 at Ser412 was generally found in all cell types including ovarian cancer cell lines (n=4).

Human IL-1α
  • After 48 hours, Human IL-1α (10ng/ml) was used to treat the transfected cells with various time points.