Human Interleukin-21 / IL-21 Protein Bioactive Protein Product Attributes
Product Type: Bioactive Protein
Recombinant Interleukin-21 / IL-21 Protein based upon sequence from: Human
Host: QP10326 protein expressed in E. coli.
Protein Construction: A DNA sequence encoding the Human Interleukin-21 / IL-21 Protein, was expressed in the hosts and tags indicated. Please select your host/tag option, above.
Application Notes: Please contact us for application specific information for QP10326.
Bioactivity Data: Equivalent or superior bioactivity to competitors. Data available upon request. The ED50 as determined by by a cell proliferation assay using human N1186 T cells is less than 20 ng/ml, corresponding to a specific activity of > 5.0 Ã 104 IU/mg.
Full Length? Partial (see sequence information for more details).
Amino Acid Sequence: QGQDRHMIRM RQLIDIVDQL KNYVNDLVPE FLPAPEDVET NCEWSAFSCF QKAQLKSANT GNNERIINVS IKKLKRKPPS TNAGRRQKHR LTCPSCDSYE KKPPKEFLER FKSLLQKMIH QHLSSRTHGS EDS
Purity: Greater than 97% as determined by SDS-PAGE and HPLC.
Concentration of Human Interleukin-21 / IL-21 Protein Protein: Lyophilized. Concentration determined by reconstitution volume.
Endotoxin Levels: Less than 1.0 EU/ug as determined by LAL method.
Buffer: 0.2 um filtered PBS, pH 7.4, lyophilized
Storage Conditions: Store at -20C to -80C.
Limitations and Performance Guarantee
This is a life science research product (for Research Use Only). This product is guaranteed to work for a period of two years when stored at -70C or colder, and one year when aliquoted and stored at -20C.