Recombinant Human C-C Motif Chemokine 24 Protein (CCL24), Active

Name: Recombinant Human C-C Motif Chemokine 24 Protein (CCL24), Active
Brand: Beta LifeScience
SKU: BLC-05504P
Availability: InStock

Collections: All products, Buy cytokines, chemokines, and growth factors for research online, Chemokines and receptors – essential regulators of immune response, High-quality cytokines for advanced research, High-quality recombinant proteins

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Product Overview

Description	Recombinant Human C-C Motif Chemokine 24 Protein (CCL24), Active is produced by our E.coli expression system. This is a protein fragment.
Purity	Greater than 97% as determined by SDS-PAGE and HPLC.
Endotoxin	Less than 1.0 EU/μg as determined by LAL method.
Activity	Fully biologically active when compared to standard. The biological activity determined by a chemotaxis bioassay using human peripheral blood eosinophils is in a concentration of 50-100 ng/ml.
Uniprotkb	O00175
Target Symbol	CCL24
Synonyms	C C motif chemokine 24; C-C motif chemokine 24; CCL24; CCL24_HUMAN; Chemokine CC Motif Ligand 24; CK beta 6; CK-beta-6; Ckb6; Eosinophil chemotactic protein 2; Eotaxin-2; MPIF 2; MPIF-2; MPIF2; Myeloid progenitor inhibitory factor 2; SCYA24; Small inducible cytokine A24; Small inducible cytokine subfamily A (Cys-Cys) member 24 ; Small-inducible cytokine A24
Species	Homo sapiens (Human)
Expression System	E.coli
Tag	Tag-Free
Complete Sequence	VVIPSPCCMF FVSKRIPENR VVSYQLSSRS TCLKAGVIFT TKKGQQFCGD PKQEWVQRYM KNLDAKQKKA SPRARAVA
Expression Range	27-104aa
Protein Length	Partial
Mol. Weight	8.8 kDa
Research Area	Immunology
Form	Lyophilized powder
Buffer	Lyophilized from a 0.2 µm filtered PBS, pH 7.4
Reconstitution	Briefly centrifuged the vial prior to opening to bring the contents to the bottom. Reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL. It is recommended to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. The default final concentration of glycerol is 50%.
Storage	1. Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. 2. Avoid repeated freeze-thaw cycles. 3. Store working aliquots at 4°C for up to one week. 4. In general, protein in liquid form is stable for up to 6 months at -20°C/-80°C. Protein in lyophilized powder form is stable for up to 12 months at -20°C/-80°C.
Notes	Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.

Target Details

Target Function	Chemotactic for resting T-lymphocytes, and eosinophils. Has lower chemotactic activity for neutrophils but none for monocytes and activated lymphocytes. Is a strong suppressor of colony formation by a multipotential hematopoietic progenitor cell line. Binds to CCR3.
Subcellular Location	Secreted.
Protein Families	Intercrine beta (chemokine CC) family
Database References	HGNC: 10623 OMIM: 602495 KEGG: hsa:6369 STRING: 9606.ENSP00000222902 UniGene: PMID: 28042950 Mean eotaxin 2 concentrations in nasal fluid in patients with perennial allergic rhinitis and nonallergic and allergic chronic rhinosinusitis with nasal polyps patients were significantly higher in comparison to control subjects. PMID: 28587510 HMGB1 did not elicit chemotaxis of human eosinophils alone and had no effect in combination with the eosinophil chemotactic agent, eotaxin-2 (CCL24). PMID: 25774667 these data suggest that CCL26 and CCL24 are likely involved in the pathogenesis of chronic nasal hypereosinophilia, with a complex cooperation and different involvement of the various members of eotaxin family. PMID: 24989688 Pregnancy associated environments increased local CCL24/CCR3, supporting the process of decidualization in human early pregnancy. PMID: 23696919 Phosphodiesterase 4 inhibitors, rolipram and RO-20-1724 have no effect on CCL24 expression in human primary bronchial epithelial cells. PMID: 22946025 Study shows that CCL24 levels were significantly increased in age-related macular degeneration (AMD) patients despite Avastin treatment as compared with normal controls and those without Avastin. PMID: 23025269 CCR3 is differentially expressed on inflammatory cells in rheumatoid arthritis, while eotaxin-2, a potent CCR3 agonist, is differentially expressed in active disease. PMID: 20659406 stimulates lung fibroblast proliferation and collagen synthesis PMID: 20143648 alters eosinophil integrin function via mitogen-activated protein kinases PMID: 12034562 Intradermal injection of CCL24 induces recruitment of eosinophils, basophils, neutrophils, and macrophages as well as features of early- and late-phase allergic reactions in atopic and nonatopic volunteers. PMID: 12193745 Plasma eotaxin-2 concentrations differed in asthmatic patients with respect to aspirin intolerance and tolerance, indicating that eotaxin-2 may be differentially up-regulated according to aspirin intolerance. PMID: 16304252 Our results suggest that Eo2 +179T>C and Eo2 +275C>T of eotaxin-2 might be associated with the susceptibility of ulcerative colitis. PMID: 16391516 These data support the idea that CCL24/eotaxin-2 is part of the mechanism of CD4 lymphocyte activation paracrinally induced by Nef. PMID: 17630924 eotaxin-2 is a chemokine strongly associated with primary and metastatic tumors of colorectal origin PMID: 17908961 the ability to produce eotaxin-2/CCL24 is acquired during the differentiation into eosinophilic lineage which is dependent on GATA-1 expression PMID: 17917245 This protein is an eosinophil chemoattractant that is up-regulated by human rhinovirus infection in cultured bronchial epithelial cells. PMID: 11467997

FAQs

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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.