ProDots Recombinant Human IL-2 Protein

Name: ProDots Recombinant Human IL-2 Protein
Brand: R&D Systems
SKU: PRD202
Price: 1020 USD

Catalog #: PRD202 Datasheet / COA / SDS

GMP Version Available: PRD202-GMP

GMP

Supplied as ready-to-use 5 ug protein balls

Discontinued Product

PRD202 has been discontinued.

View all IL-2 products.

ProDots Recombinant Human IL-2 Protein Bioactivity

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All IL-2 Proteins and Enzymes

Product Details

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

ProDots Recombinant Human IL-2 Protein Summary

Pre-aliquoted, lyophilized protein dots for use in cell culture medium

Features and Benefits

Rolls out of bottle for easy cell culture medium preparation
Eliminates time spent aliquoting
One protein dot can be used to make 500 mL of 10 ng/mL cell culture medium

What are ProDots® Proteins?

ProDots® proteins are R&D Systems industry-leading quality, highly bioactive proteins packaged into easy-to-use lyophilized “dots”. Designed to be stable at 4 ºC and to dissolve instantly, ProDots® proteins can be rolled into cell culture media to quickly produce media with a desired working protein concentration.

Why use ProDots™ Proteins Instead of Standard Lyophilized Protein?

ProDots® proteins are designed to reduce cell culture media preparation time while ensuring optimal protein recovery and bioactivity. Unlike standard lyophilized protein, which is shipped as a diffuse residue within a vial, ProDots® proteins are neatly bundled into the shape of a ball. In this form ProDots® proteins can be rolled directly into cell culture media. ProDots® proteins rehydrate instantly in media to maximize the recovery of purchased protein and to reliably reconstitute it at a desired concentration for use in cell culture media. ProDots® proteins can be conveniently stored at room temperature where they will remain stable for 6 months or at 4 ºC where they will remain stable for 12 months. The accessible storage and high stability of ProDots® proteins makes them ideal for quick and easy preparation of cell culture media.

Product Specifications

Purity

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

Endotoxin Level

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

Activity

Measured in a cell proliferation assay using CTLL‑2 mouse cytotoxic T cells. Gearing, A.J.H. and C.B. Bird (1987) in Lymphokines and Interferons, A Practical Approach. Clemens, M.J. et al. (eds): IRL Press. 295. The ED₅₀ for this effect is 0.05-0.25 ng/mL

Source

E. coli-derived human IL-2 protein
Ala21 - Thr153, with an N-terminal Met

Accession #

P60568

N-terminal Sequence
Analysis

Met

Predicted Molecular Mass

15 kDa

SDS-PAGE

13 kDa, reducing conditions

Product Datasheets

PRD202

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.

PRD202

Reconstitution	For a stock solution, reconstitute at 100 μg/mL in sterile 100 mM Acetic Acid, or simply roll ProDot^® directly into cell culture medium for immediate use.
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. • 6 months from date of receipt at room temperature as supplied. • 12 months from date of receipt at 2-8 °C as supplied. • 1 month at 2-8 °C under sterile conditions after reconstitution. • 3 months at -20 to -80 °C under sterile conditions after reconstitution.

Scientific Data

Bioactivity

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ProDots^®Recombinant Human IL-2 stimulates cell proliferation of the CTLL-2 mouse cytotoxic T cell line. The ED₅₀ for this effect is 0.05-0.26 ng/mL.

SDS-PAGE

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1 μg/lane of ProDots^®Recombinant Human IL-2 was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by silver staining, showing a single band at 13 kDa.

Reconstitution Calculator

Background: IL-2

IL-2 (Interleukin 2) is a critical cytokine in T cell biology. It promotes T cell activation and expansion, the development, maintenance and function of regulatory T cells (Treg), and the differentiation of CD8+ T cells into terminal effector cells and memory cells. IL-2 signals through a receptor complex composed of CD25/IL-2 R alpha, IL-2 R beta, and the Common gamma Chain (gamma c). IL-2 R beta is also a component of the IL-15 receptor complex. Gamma c is also a signaling subunit in the receptors for IL-4, -7, -9, -15, and -21.

Long Name

Interleukin 2

Entrez Gene IDs

3558 (Human); 16183 (Mouse); 116562 (Rat); 396868 (Porcine); 280822 (Bovine); 403989 (Canine); 100034204 (Equine); 751114 (Feline); 100302458 (Rabbit)

Alternate Names

Aldesleukin; IL2; IL-2; IL-2lymphokine; interleukin 2; interleukin-2; involved in regulation of T-cell clonal expansion; Proleukin; T cell growth factor; T-cell growth factor; TCGF