Recombinant Human CCL26/Eotaxin-3 (aa 24-94) Protein

Name: Recombinant Human CCL26/Eotaxin-3 (aa 24-94) Protein
Brand: R&D Systems
SKU: 346-E3
Rating: 5 (1 reviews)

Catalog #: 346-E3
2 Citations 1 Review Datasheet / COA / SDS

Carrier Free

Catalog #	Availability	Size / Price	Qty
346-E3-025/CF

With Carrier

Catalog #	Availability	Size / Price	Qty
346-E3-025

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Product Details

Citations (2)

FAQs

Reviews (1)

Summary Product Datasheets Carrier Free Data Images Reconstitution Calculator Background Related Research Areas

Recombinant Human CCL26/Eotaxin-3 (aa 24-94) Protein Summary

Product Specifications

Purity

>97%, by SDS-PAGE under reducing conditions and visualized by silver stain.

Endotoxin Level

<0.01 EU per 1 μg of the protein by the LAL method.

Activity

Measured by its ability to chemoattract BaF3 mouse pro‑B cells transfected with mouse CCR3. The ED₅₀ for this effect is 80.0-800 ng/mL.

Source

E. coli-derived human CCL26/Eotaxin-3 protein
Thr24-Leu94

Accession #

Q9Y258.1

N-terminal Sequence
Analysis

Thr24

Predicted Molecular Mass

8.4 kDa

Product Datasheets

346-E3 (with carrier)

Product Datasheet

COA

SDS

346-E3/CF (carrier free)

Product Datasheet

COA

SDS

Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.

346-E3

Formulation	Lyophilized from a 0.2 μm filtered solution in Acetonitrile and TFA with BSA as a carrier protein.
Reconstitution	Reconstitute at 100 μg/mL in sterile PBS containing at least 0.1% human or bovine serum albumin.
Shipping	The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage:	Use a manual defrost freezer and avoid repeated freeze-thaw cycles. 12 months from date of receipt, -20 to -70 °C as supplied. 1 month, 2 to 8 °C under sterile conditions after reconstitution. 3 months, -20 to -70 °C under sterile conditions after reconstitution.

346-E3/CF

Formulation	Lyophilized from a 0.2 μm filtered solution in Acetonitrile and TFA.
Reconstitution	Reconstitute at 100 μg/mL in sterile PBS.
Shipping	The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage:	Use a manual defrost freezer and avoid repeated freeze-thaw cycles. 12 months from date of receipt, -20 to -70 °C as supplied. 1 month, 2 to 8 °C under sterile conditions after reconstitution. 3 months, -20 to -70 °C under sterile conditions after reconstitution.

Reconstitution Calculator

Background: CCL26/Eotaxin-3

Eotaxin-3, also named CCL26 or SCYA26, is a novel human CC chemokine that maps to chromosome 7q11.2, within 40 kilobases of the Eotaxin-2 loci. Eotaxin-3/CCL26 has been shown to be constitutively expressed in the heart and ovary. In addition, low levels of Eotaxin-3/CCL26 expression can also be detected in various tissues. The expression of Eotaxin-3/CCL26 in vascular endothelial cells has been shown to be up-regulated by IL-13 and IL-4.

Eotaxin-3/CCL26 cDNA encodes a 94 amino acid (aa) residue protein with a putative signal peptide of either 23 or 26 aa residues. Recombinant Eotaxin-3/CCL26 has been produced in insect cells using a baculovirus expression system and shown to contain 71 aa residues. Recombinant Eotaxin-3/CCL26 is chemotactic for eosinophils and PHA-activated T cells. Eotaxin-3/CCL26 induces calcium flux in eosinophils as well as in CCR3-transfected cells. Eotaxin-3/CCL26 has also been shown to cross-desensitize cells to other CCR3 ligands. Both the 71 aa residue and 68 aa residue variants of recombinant Eotaxin-3 have been expressed in E. coli and found to have equal potency in inducing chemotaxis of a human CCR3-transfected cell line.

References

Gou, R.F. et al. (1999) Genomics 58:313.
Kitamura, M. et al. (1999) J. Biol. Chem. 274:27975.
Shinkai, A. et al. (1999) J. Immunol. 163:1602.

Entrez Gene IDs

10344 (Human)

Alternate Names

CC chemokine IMAC; C-C motif chemokine 26; CCL26; chemokine (C-C motif) ligand 26; chemokine N1; Eotaxin3; Eotaxin-3; IMAC; Macrophage inflammatory protein 4-alpha; MGC126714; MIP-4a; MIP-4alpha; SCYA26; SCYA26MIP-4-alpha; small inducible cytokine A26; small inducible cytokine subfamily A (Cys-Cys), member 26; Small-inducible cytokine A26; TSC-1Thymic stroma chemokine-1

Related Research Areas

Citations for Recombinant Human CCL26/Eotaxin-3 (aa 24-94) Protein

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

2 Citations: Showing 1 - 2
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Rapid chemokine secretion from endothelial cells originates from 2 distinct compartments.
Authors: Oynebraten I, Bakke O, Brandtzaeg P, Johansen FE, Haraldsen G
Blood, 2004-03-25;104(2):314-20.
Applications: ELISA (Standard)
Identification of full, partial and inverse CC chemokine receptor 3 agonists using [35S]GTPgammaS binding.
Authors: Wan Y, Jakway JP, Qiu H, Shah H, Garlisi CG, Tian F, Ting P, Hesk D, Egan RW, Billah MM, Umland SP
Eur. J. Pharmacol., 2002-12-05;456(1):1-10.
Species: Human
Sample Types: Whole Cells
Applications: Bioassay