Recombinant Porcine CD34 Fc Chimera Protein, CF

Catalog # Availability Size / Price Qty
9655-CD-050
The Innovator Series.
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Recombinant Porcine CD34 Fc Chimera Protein, CF Summary

Product Specifications

Purity
>95%, 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
Bioassay data are not available.
Source
Mouse myeloma cell line, NS0-derived porcine CD34 protein
Porcine CD34
(Ala20-Thr294)
Accession # NP_999251
IEGRMD Human IgG1
(Pro100-Lys330)
N-terminusC-terminus
Accession #
N-terminal Sequence
Analysis
Ala20
Structure / Form
Disulfide-linked homodimer
Predicted Molecular Mass
55 kDa
SDS-PAGE
108-122 kDa, reducing conditions

Product Datasheets

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.

9655-CD

Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution Reconstitute at 250 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.

Data Image

Bioactivity not tested The Innovator Series. View Larger

R&D Systems proteins are almost always sold with a bioassay to indicate activity. However, we recognize that sometimes proteins might be novel, and their bioactivity may not be well understood. In addition, some researchers may wish to use polypeptides to make antibodies. To facilitate the advancement of new science, we now offer our Innovator Series of proteins.

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: CD34

CD34 is a glycosylated type I transmembrane protein; it was discovered as a hematopoietic cell-surface antigen (1, 2, 3). Porcine CD33 cDNA encodes a 389 amino acid (aa) precursor that contains a 20 aa signal sequence and a 275 aa extracellular domain (ECD). Within the ECD, porcine CD34 shares 55%, 48% and 44% aa sequence identity with human, mouse, and rat CD34, respectively. This single-pass sialomucin‑like transmembrane protein is heavily glycosylated and phosphorylated by Protein Kinase C (PKC) (4, 5). CD34 is found on multipotent precursors, bone marrow stromal cells, embryonic fibroblasts, vascular endothelia, as well as some populations of mesenchymal stem cells, and tumor cell lines, and it is a common marker for diverse progenitors (6). CD34 is involved in the adhesion of stem cells to the bone marrow extracellular matrix or to stromal cells.

References
  1. Civin C.I. et al. (1984) J. Immunol. 133:157.
  2. Katz F. et al. (1985) Leuk. Res. 9:191.
  3. Andrews R.G. et al. (1986) Blood 67:842.
  4. Young P.E. et al. (1995) Blood 85:96.
  5. Krause D.S. et al. (1996) Blood 87:1.
  6. Sidney L.E. et al (2014) Stem Cells 32:1380.
Entrez Gene IDs
947 (Human); 12490 (Mouse); 305081 (Rat); 397160 (Porcine); 415130 (Canine)
Alternate Names
CD34 antigenhematopoietic progenitor cell antigen CD34; CD34 molecule; CD34; HPCA1

FAQs

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