IL37 (IL1F7) Human Recombinant produced in E.Coli is a single, non-glycosylated, Polypeptide chain containing 167 amino acids (Lys53-Asp218) and having a molecular mass of 18.6kDa.The IL-37 (IL-1F7)is purified by proprietary chromatographic techniques.
Human interleukin family 1, member 7 (IL1F7) belongs to the interleukin 1 cytokine family. There are 5 alternatively spliced transcript variants encoding distinct isoforms with distinct expression profiles. The longest IL-1F7 transcript, named IL1F7b or IL1F7 isoform 1, encodes a 218 aa residues proprotein and containing a 45 aa propeptide which is cleaved to produce a mature protein. IL1F7b binds to IL18 Rb with low affinity however it doesn’t exert any IL18 agonistic or antagonistic effects. IL1F7b also binds IL18BP (interleukin 18 binding protein), which is an inhibitory binding protein of interleukin 18 (IL18), and afterward forms a complex with IL18 receptor beta subunit, and throµgh which it inhibits the activity of IL18.
Sterile Filtered White lyophilized (freeze-dried) powder.
IL1F7 was lyophilized after extensive dialysis against 20mM Phosphate buffer, pH7.4.
It is recommended to quick spin followed by reconstitution of IL1F7 in PBS to a concentration no less than 100
Lyophilized IL1F7 althoµgh stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution IL1F7 should be stored at 4°C between 2-7 days and for future use below -18°C.Please prevent freeze-thaw cycles.
Amino Acid Sequence
The sequence of the first five N-terminal amino acids was determined and was found to be Met-Lys-Asn-Leu-Asn.
Greater than 95.0% as determined by:(a) Analysis by RP-HPLC.(b) Analysis by SDS-PAGE.
As measured by its binding ability in a functional ELISA, immobilized IL1F7 at 1
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