Recombinant Human Eotaxin-2 Protein (His Tag)

Name: Recombinant Human Eotaxin-2 Protein (His Tag)
Brand: Beta LifeScience
SKU: BLPSN-1775
Availability: InStock

Collections: Other recombinant proteins, Recombinant proteins

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Product Overview

Tag	His
Host Species	Human
Accession	O00175
Synonym	Ckb-6, MPIF-2, MPIF2, SCYA24
Background	CCL24, also known as Eotaxin-2 and MPIF-2, belongs to the intercrine beta (chemokine CC) family. CCL24 gene belongs to the subfamily of small cytokine CC genes. Cytokines are a family of secreted proteins involved in immunoregulatory and inflammatory processes. The CC cytokines are proteins characterized by two adjacent cysteines. CCL24 displays chemotactic activity on resting T lymphocytes, a minimal activity on neutrophils, and is negative on monocytes and activated T lymphocytes. CCL24 is also a strong suppressor of colony formation by a multipotential hematopoietic progenitor cell line. CCL24 is chemotactic for resting T-lymphocytes, and eosinophils. It has lower chemotactic activity for neutrophils but none for monocytes and activated lymphocytes. It is a strong suppressor of colony formation by a multipotential hematopoietic progenitor cell line. Eotaxin-2 interacts with chemokine receptor CCR3 to induce chemotaxis in eosinophils. Elevated level of Eotaxin-2 has been seen in patients with aspirin-exacerbated respiratory disease.
Description	A DNA sequence encoding the human CCL24 (O00175) (Met 1-Cys 119) was fused with a His tag at the C-terminus.
Source	Baculovirus-Insect Cells
Predicted N Terminal	Val 27
AA Sequence	Met 1-Cys 119
Molecular Weight	The secreted recombinant human CCL24 consists of 103 a.a. and predicts a molecular mass of 11.8 kDa. It migrates as an approximately 19 KDa band in SDS-PAGE under reducing conditions.
Purity	>87% as determined by SDS-PAGE
Endotoxin	< 1.0 EU per μg of the protein as determined by the LAL method
Bioactivity	Please contact us for detailed information
Formulation	Lyophilized from sterile 20mM Tris, 500mM NaCl, pH 7.4, 10% gly.
Stability	The recombinant proteins are stable for up to 1 year from date of receipt at -70°C.
Usage	For Research Use Only
Storage	Store the protein under sterile conditions at -20°C to -80°C. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.

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: Hs.247838
Tissue Specificity	Activated monocytes and activated T lymphocytes.

Gene Functions References

Study showed that CCL24 was upregulated in hepatocellular carcinoma (HCC) tissues and correlated with poor prognosis in HCC patients . Also, CCL24 was associated with the metastatic potential of HCC cell lines and promoted proliferation, migration, and invasion. 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.

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