SRP3211
IL-4 from mouse
Animal-component free, recombinant, expressed in E. coli, ≥98% (SDS-PAGE), ≥98% (HPLC), suitable for cell culture
Synonyme(s) :
B cell stimulating factor (BSF-1), BCDF, BCGF
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About This Item
Code UNSPSC :
12352202
Nomenclature NACRES :
NA.32
Produits recommandés
Source biologique
mouse
Produit recombinant
expressed in E. coli
Pureté
≥98% (HPLC)
≥98% (SDS-PAGE)
Forme
lyophilized
Puissance
≤2.0 ng/mL ED50
Poids mol.
13.7 kDa
Conditionnement
pkg of 20 μg
Technique(s)
cell culture | mammalian: suitable
Impuretés
<0.1 EU/μg endotoxin, tested
Couleur
white to off-white
Numéro d'accès UniProt
Conditions d'expédition
wet ice
Température de stockage
−20°C
Informations sur le gène
mouse ... IL4(16189)
Description générale
IL-4 (interleukin 4) is a pleiotropic cytokine. Produced by mast cells, T cells and bone marrow stromal cells. Recombinant murine IL-4 is a 13.7kDa globular protein containing 120 amino acid residues.
Actions biochimiques/physiologiques
It regulates diverse T and B cell responses including cell proliferation, survival and gene expression. IL-4 regulates the differentiation of naive CD4+ T cells into helper Th2 (T helper) cells, characterized by their cytokine-secretion profile that includes secretion of IL-4, IL-5, IL-6, IL-10, and IL-13, which favor a humoral immune response. Another dominant function of IL-4 is the regulation of immunoglobulin class switching to the IgG1 (immunoglobulin G1) and IgE isotypes. Excessive IL-4 production by Th2 cells has been associated with elevated IgE production and allergy. IL-4 helps in long-term recovery after cerebral ischemia by controlling the activities of microglia/macrophage. In mice, absence of IL-4 is associated with a state anxiety-like behavior.
Séquence
MHIHGCDKNH LREIIGILNE VTGEGTPCTE MDVPNVLTAT KNTTESELVC RASKVLRIFY LKHGKTPCLK KNSSVLMELQ RLFRAFRCLD SSISCTMNES KSTSLKDFLE SLKSIMQMDY S
Forme physique
Lyophilized with no additives.
Reconstitution
Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a stabilizer (example 5% Trehalose) and store in working aliquots at -20°C to -80°C.
Code de la classe de stockage
11 - Combustible Solids
Classe de danger pour l'eau (WGK)
WGK 3
Point d'éclair (°F)
Not applicable
Point d'éclair (°C)
Not applicable
Certificats d'analyse (COA)
Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".
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