ProDots Recombinant Human PDGF-BB Protein

Catalog #: PRD220 Datasheet / COA / SDS
Supplied as ready-to-use 5 ug protein balls

Discontinued Product

PRD220 has been discontinued.
View all PDGF-BB products.
ProDots Recombinant Human PDGF-BB Protein Bioactivity
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ProDots Recombinant Human PDGF-BB 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 NR6R‑3T3 mouse fibroblast cells. Raines, E.W. et al. (1985) Methods Enzymol. 109:749. The ED50 for this effect is 1.5-6.0 ng/mL.
Source
E. coli-derived human PDGF-BB protein
Ser82 - Thr190
Accession #
N-terminal Sequence
Analysis
Ser82
Structure / Form
Disulfide-linked homodimer
Predicted Molecular Mass
12.3 kDa (monomer)
SDS-PAGE
12 kDa, reducing conditions

Product Datasheets

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PRD220

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.

PRD220

Reconstitution For a stock solution, reconstitute at 100 µg/mL in sterile 4 mM HCl, 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 ProDots Recombinant Human PDGF-BB Protein Bioactivity View Larger

ProDots®Recombinant Human PDGF-BB stimulates cell proliferation in the NR6R-3T3 mouse fibroblast cell line in a dose-dependent manner. The ED50 for this effect is 1.5-6.0 ng/mL.

SDS-PAGE ProDots Recombinant Human PDGF-BB Protein SDS-PAGE View Larger

1 μg/lane of ProDots®Recombinant Human PDF-BB was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by silver staining, showing single bands at 13 kDa and 28 kDa, respectively.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Background: PDGF-BB

The platelet-derived growth factor (PDGF) family of disulfide-linked dimeric proteins consists of four homodimeric proteins, PDGF-AA, PDGF-BB, PDGF-CC and PDGF-DD, and one heterodimeric protein, PDGF-AB. Members of this protein family act mainly on connective tissue. The dimeric isoforms of PDGF are expressed by different cell types and at different times during embryonic development. All PDGF isoforms are synthesized as inactive precursors and are processed to active forms that contain a PDGF/VEGF cysteine knot domain. Only PDGF-C and PDGF-D, also named spinal cord-derived growth factors SCDGF and SCDGF-B, also contain an N-terminal CUB domain. Mature PDGF dimers bind and induce the homo- or hetero-dimerization of two receptor tyrosine kinases (PDGF R alpha and R beta).

Long Name
Platelet-derived Growth Factor BB
Entrez Gene IDs
5155 (Human); 24628 (Rat)
Alternate Names
c-sis;IBGC5;PDGF2;PDGF-2;PDGFB;Platelet-derived growth factor subunit B;SIS;SSV; PDGFBB; PDGF-BB

Product Specific Notices

726247.1

FAQs

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