Cusabio Active Proteins
Recombinant Human Interleukin-31 (IL31) (Active) | CSB-AP004631HU
- 5 to 10 Working Days
Recombinant Human Interleukin-31 (IL31) (Active) | CSB-AP004631HU | Cusabio
Protein Description: Full Length of Mature Protein
Alternative Name (s) : Interleukin-31; IL-31; IL31
Gene Names: IL31
Research Areas: Immunology
Species: Homo sapiens (Human)
Tag Info: Tag-Free
Expression Region: 24-164aa
Sequence Info: SHTLPVRLLRPSDDVQKIVEELQSLSKMLLKDVEEEKGVLVSQNYTLPCLSPDAQPPNNIHSPAIRAYLKTIRQLDNKSVIDEIIEHLDKLIFQDAPETNISVPTDTHECKRFILTISQQFSECMDLALKSLTSGAQQATT
Biological Activity: The ED50 as determined by inducing STAT3 activation in U87 MG human glioblastoma/astrocytoma cells is less than 45 ng/mL.
MW: 15.8 kDa
Purity: Greater than 95% as determined by SDS-PAGE.
Endotoxin: Less than 1.0 EU/µg as determined by LAL method.
Relevance: Human Interleukin 31 (IL-31) is a cytokine containing a four-helix bundle structure. It shares several structural and functional characteristics with IL-6, Oncostatin M, LIF, and Cardiotrophin-1. Human IL-31 cDNA encodes a 164 amino acid precursor that contains a 23 amino acid signal peptide and a 141 amino acid mature protein. Human and mouse IL-31 share 24% sequence identity in the mature region. IL-31 is mainly associated with activated T cells and is preferentially expressed by type 2 helper T cells (Th2) . IL-31 signals via a heterodimeric receptor complex composed of a gp130 related molecule termed IL-31RA (also GPL and GLMR) and an Oncostatin M receptor (OSM Rβ) . The IL-31 receptor is constitutively expressed by keratinocytes and upregulated by IFNγ on monocytes. GPL/OSMR signaling is a strong activator of STAT3 and STAT5, and can also activate STAT1, Jak1, and Jak2 signaling pathways. IL-31 regulated immune responses have been implicated in skin physiology and inflammatory skin diseases. Studies have shown that IL31 induces severe pruritis (itching) and dermatitis in transgenic mice.
Notes: Repeated freezing and thawing is not recommended. Store working aliquots at 4℃ for up to one week.
Function: Activates STAT3 and possibly STAT1 and STAT5 through the IL31 heterodimeric receptor composed of IL31RA and OSMR
Involvement in disease:
Subcellular Location: Secreted
Tissue Specificity: Detected at low levels in testis, bone marrow, skeletal muscle, kidney, colon, thymus, small intestine and trachea.
Form: Lyophilized powder
Buffer: Lyophilized from a 0.2 μm filtered 20 mM PB, 150 mM NaCl, pH 7.4
Reconstitution: We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Uniprot ID: Q6EBC2
Uniprot Entry Name:
HGNC Database Link: HGNC
UniGene Database Link: UniGene
KEGG Database Link: KEGG
STRING Database Link: STRING
OMIM Database Link: OMIM