- Name
- Description
- Cat#
- Pricings
- Quantity
Catalogue number
CYT-1248
Description
Interleukin 22 Y51A mutan Mouse Recombinant is a single non-glycosilated polypeptide chain containing 147 amino acids and additional Ala at N-terminus. The iL22RA is bound to 20 kDa PEG molecule at N-terminus, resulting in 36.0 kDa. The Mouse iL22RA (Y51A) Pegylated runs as a 50 kDa due to enlarged hydrodymanic volume. iL22RA Mutant Mouse Recombinant was purified by proprietary chromatographic techniques.
Source
Escherichia coli.
Physical Appearance
White lyophilized (freeze-dried) powder.
Formulation
The Mouse iL22RA (Y51A) was lyophilized from a concentrated (1mg/ml) solution with 0.003mM NaHCO3.
Solubility
It is recommended to reconstitute the lyophilized iL22RA (Y51A) Mutant Mouse Recombinant in sterile water or sterile 0.4% NaHCO3 adjusted to pH 8-9, not less than 100µg/ml, which can then be further diluted with other aqueous solutions.
Stability
Lyophilized iL22RA (Y51A) Mutant Mouse Recombinant although stable at room temperature for several weeks, should be stored desiccated below -18°C. Upon reconstitution at > 0.1 mg/ml and up to 2mM and filter sterilization iL22RA mutant can be stored at 4°C or even room temperature for several weeks making it suitable for long term infusion studies using osmotic pumps. At lower concentration addition of a carrier protein (0.1% HSA or BSA) is suggested.
Please prevent freeze-thaw cycles.
Purity
Greater than 98.0% as determined by:
(a) Gel filtration analysis.
(b) Analysis by SDS-PAGE.
Biological Activity
Pegylated Mouse iL22RA inhibits mouse IL-22 induced STAT3 phosphorylation in HepG cells. Its inhibitory acrtivity in vitro is ~ 10-20% compared to the non-pegylated mIL22 (Y51A) mutant.
Protein content
Protein quantization was carried out by UV spectroscopy at 280 nm using the absorbency value of 0.18 as the extinction coefficient for a 0.1% (1mg/ml) solution at pH 8.0. This value is calculated by the DNAman computer analysis program of protein sequences.
Safety Data Sheet
Usage
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
Background
IL-22 is a part of the IL-10 family of regulatory cytokines and produced by several populations of immune cells at a site of inflammation. Members of this family share partial homology in their amino acid sequences, but varies in their biological functions. IL-22 takes effect on non-hematopoietic cells. IL-22 takes part in wound healing and in protection against microbs. Produced by T lymphocytes, IL-22 inhibits IL-4 production by Th2 cells, and induces acute phase reactants in the pancreas and liver.