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Description
Human IL-31 Protein, His TagProduct Specification Species Human Synonyms Interleukin 31, IL31 Accession Q6EBC2 Amino Acid Sequence Protein sequence (Q6EBC2, Ser24 Thr164, with N His Tag) SHTLPVRLLRPSDDVQKIVEELQSLSKMLLKDVEEEKGVLVSQNYTLPCLSPDAQPPNNIHSPAIRAYLKTIRQLDNKSVIDEIIEHLDKLIFQDAPETNISVPTDTHECKRFILTISQQFSECMDLALKSLTSGAQQATT Expression System HEK293 Molecular Weight Predicted MW: 17. 5 kDa Observed MW: 20 kDa Purity 95% by SDS PAGE Endotoxin <1EU g Conjugation Unconjugated
Product Specification
| Species | Human |
| Synonyms | Interleukin-31, IL31 |
| Accession | Q6EBC2 |
| Amino Acid Sequence | Protein sequence (Q6EBC2, Ser24-Thr164, with N-His Tag) SHTLPVRLLRPSDDVQKIVEELQSLSKMLLKDVEEEKGVLVSQNYTLPCLSPDAQPPNNIHSPAIRAYLKTIRQLDNKSVIDEIIEHLDKLIFQDAPETNISVPTDTHECKRFILTISQQFSECMDLALKSLTSGAQQATT |
| Expression System | HEK293 |
| Molecular Weight | Predicted MW: 17.5 kDa Observed MW: 20 kDa |
| Purity | ＞95% by SDS-PAGE |
| Endotoxin | <1EU/μg |
| Conjugation | Unconjugated |
| Physical Appearance | Lyophilized powder |
| Storage Buffer | Lyophilized from a 0.2 μm filtered solution of 0.2M PBS, pH7.4 with 3% trehalose. |
| Reconstitution | Reconstitute no more than 1 mg/mL according to the size in deionized water after rapid centrifugation. |
| Stability & Storage | 12 months from date of receipt, -20 to -70 °C as supplied. |
Background
Interleukin-31 (IL-31) is a novel cytokine belonging to the IL-6 family, primarily produced by activated T helper 2 (Th2) cells and mast cells. It signals through a heterodimeric receptor composed of IL-31 receptor A (IL-31RA) and oncostatin M receptor β (OSMRβ), which is expressed on various cell types including sensory neurons, keratinocytes, and immune cells. IL-31 is a key mediator of pruritus (itch) in inflammatory skin diseases such as atopic dermatitis, psoriasis, and allergic conditions. Its signaling pathway promotes itch sensation, disrupts epidermal barrier function, and drives immune responses, making it a significant therapeutic target for chronic pruritic disorders.
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