| Species : | Human | 
                                
                                    | Source : | E.coli | 
                                
                                    | Tag : | His | 
                                
                                    | Description : | The protein encoded by this gene is a member of the interleukin 1 cytokine family. This protein inhibits the activities of interleukin 1, alpha (IL1A) and interleukin 1, beta (IL1B), and modulates a variety of interleukin 1 related immune and inflammatory responses. This gene and five other closely related cytokine genes form a gene cluster spanning approximately 400 kb on chromosome 2. A polymorphism of this gene is reported to be associated with increased risk of osteoporotic fractures and gastric cancer. Four alternatively spliced transcript variants encoding distinct isoforms have been reported. [provided by RefSeq, Jul 2008] | 
                                
                                    | Form : | Powder | 
                                
                                    | Bio-activity : | Determined by its ability to inhibit IL-1 alpha -dependent proliferation in D10.G4.1 cells. The ED50 for this effect is < 50 ng/mL. | 
                                
                                    | AA Sequence : | MRPSGRKSSKMQAFRIWDVNQKTFYLRNNQLVAGYLQGPNVNLEEKIDVVPIEPHALFLGIHGGKMCLSCVKSGDETRLQLEAVNITDLSENRKQDKRFAFIRSDSGPTTSFESAACPGWFLCTAMEADQPVSLTNMPDEGVMVTKFYFQEDE | 
                                
                                    | Endotoxin : | Endotoxin level is less than 0.1 EU/μg of the protein, as determined by the LAL test. | 
                                
                                    | Purity : | > 98% (by SDS-PAGE) | 
                                
                                    | Applications : | SDS-PAGE | 
                                
                                    | Notes : | For laboratory research only, not for drug, diagnostic or other use. | 
                                
                                    | Storage : | Lyophilized protein should be stored at -20°C. After reconstitution, aliquot and store at -20°C or -80°C for up to one month. Storage in frost free freezers is not recommended. Avoid repeated freeze/thaw cycles. Suggest spin the vial prior to opening. | 
                                
                                    | Storage Buffer : | PBS (pH 7.4) | 
                                
                                    | Reconstitution : | It is recommended to reconstitute the lyophilized protein in sterile water to a concentration not less than 100 μg/mL and incubate the stock solution for at least 20 min at room temperature to make sure the protein is dissolved completely. |