Recombinant Human IL-10 Protein, CF

Catalog #: 1064-ILB Datasheet / COA / SDS

Analyzed by SEC-MALS

Catalog #	Availability	Size / Price	Qty
1064-ILB-010
1064-ILB-050
1064-ILB-250
1064-ILB-01M

Recombinant Human IL‑10 Protein SEC-MALS.

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Product Details

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

Recombinant Human IL-10 Protein, CF Summary

Product Specifications

Purity

>97%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.

Endotoxin Level

<0.10 EU per 1 μg of the protein by the LAL method.

Activity

Measured in a cell proliferation assay using MC/9‑2 mouse mast cells. Thompson-Snipes, L. et al. (1991) J. Exp. Med. 173:507. The ED₅₀ for this effect is 0.075-0.750 ng/mL.

Source

E. coli-derived human IL-10 protein
Ser19-Asn178, with a N-terminal Met

Accession #

P22301.1

N-terminal Sequence
Analysis

Met

Structure / Form

Noncovalently-linked homodimer

Predicted Molecular Mass

19 kDa

SDS-PAGE

18 kDa, under reducing conditions.

Product Datasheets

1064-ILB

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.

1064-ILB

Formulation	Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose.
Reconstitution	Reconstitute at 100-500 μg/mL in 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.

Scientific Data

SEC-MALS

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Recombinant human IL-10 (Catalog # 1064-ILB) has a molecular weight (MW) of 36.7 kDa as analyzed by SEC-MALS, suggesting that this protein is a homodimer. MW may differ from predicted MW due to post-translational modifications (PTMs) present (i.e. Glycosylation).

Bioactivity

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Measured in a cell proliferation assay using MC/9‑2 mouse mast cells. The ED₅₀ for this effect is 0.075-0.750 ng/mL.

SDS-PAGE

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2 μg/lane of Recombinant Human IL‑10 Protein (Catalog # 1064-ILB) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 18.4 kDa.

Reconstitution Calculator

Background: IL-10

Interleukin 10, also known as cytokine synthesis inhibitory factor (CSIF), is the charter member of the IL‑10 family of alpha ‑helical cytokines that also includes IL‑19, IL‑20, IL‑22, IL‑24, and IL‑26/AK155 (1, 2). IL‑10 is secreted by many activated hematopoietic cell types as well as hepatic stellate cells, keratinocytes, and placental cytotrophoblasts (2-5). Mature human IL‑10 shares 72%-86% amino acid sequence identity with bovine, canine, equine, feline, mouse, ovine, porcine, and rat IL‑10. Whereas human IL‑10 is active on mouse cells, mouse IL‑10 does not act on human cells (6, 7). IL‑10 is a 178 amino acid molecule that contains two intrachain disulfide bridges and is expressed as a 36 kDa noncovalently associated homodimer (6, 8, 9). The IL‑10 dimer binds to two IL‑10 R alpha /IL‑10 R1 chains, resulting in recruitment of two IL‑10 R beta /IL‑10 R2 chains and activation of a signaling cascade involving JAK1, TYK2, and STAT3 (10). IL‑10 R beta does not bind IL‑10 by itself but is required for signal transduction (1). IL‑10 R beta also associates with IL‑20 R alpha, IL‑22 R alpha, or IL‑28 R alpha to form the receptor complexes for IL‑22, IL‑26, IL‑28, and IL‑29 (11-13). IL‑10 is a critical molecule in the control of viral infections and allergic and autoimmune inflammation (14-16). It promotes phagocytic uptake and Th2 responses but suppresses antigen presentation and Th1 proinflammatory responses (2).

References

Pestka, S. et al. (2004) Annu. Rev. Immunol. 22:929.
Sabat, R. et al. (2010) Cytokine Growth Factor Rev. 21:331.
Mathurin, P. et al. (2002) Am. J. Physiol. Gastrointest. Liver Physiol. 282:G981.
Grewe, M. et al. (1995) J. Invest. Dermatol. 104:3.
Szony, B.J. et al. (1999) Mol. Hum. Reprod. 5:1059.
Vieira, P. et al. (1991) Proc. Natl. Acad. Sci. 88:1172.
Hsu, D.-H. et al. (1990) Science 250:830.
Windsor, W.T. et al. (1993) Biochemistry 32:8807.
Syto, R. et al. (1998) Biochemistry 37:16943.
Kotenko, S.V. et al. (1997) EMBO J. 16:5894.
Kotenko, S.V. et al. (2000) J. Biol. Chem. 276:2725.
Hor, S. et al. (2004) J. Biol. Chem. 279:33343.
Sheppard, P. et al. (2003) Nat. Immunol. 4:63.
Fitzgerald, D.C. et al. (2007) Nat. Immunol. 8:1372.
Wu, K. et al. (2007) Cell. Mol. Immunol. 4:269.
Blackburn, S.D. and E.J. Wherry (2007)Trends Microbiol. 15:143.

Long Name

Interleukin 10

Entrez Gene IDs

3586 (Human); 16153 (Mouse); 25325 (Rat); 397106 (Porcine); 403628 (Canine); 102133450 (Cynomolgus Monkey); 493683 (Feline); 100715618 (Guinea Pig); 2949786 (Viral)

Alternate Names

CSIF; CSIFMGC126450; Cytokine synthesis inhibitory factor; GVHDS; IL10; IL-10; IL10A; IL-10MGC126451; interleukin 10; interleukin-10; TGIF