Recombinant Human CD30/TNFRSF8 His-tag Avi-tag Protein, CF

Biotinylated
Catalog # Availability Size / Price Qty
AVI10239-050
Recombinant Human CD30/TNFRSF8 His-tag Avi-tag Protein, CF Binding Activity
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Recombinant Human CD30/TNFRSF8 His-tag Avi-tag Protein, CF Summary

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
Measured by its binding ability in a functional ELISA. When Recombinant Human CD30 Ligand/TNFSF8 (Catalog # 1028-CL) is immobilized at 0.25 μg/mL (100 μL/well), the concentration of Biotinylated Recombinant Human CD30/TNFRSF8 His-tag Avi-tag (Catalog # AVI10239) that produces 50% of the optimal binding response is 2-10 ng/mL.
Source
Human embryonic kidney cell, HEK293-derived human CD30/TNFRSF8 protein
Phe19-Lys379
Accession #
N-terminal Sequence
Analysis
Phe19
Structure / Form
Biotinylated via Avi-tag
Predicted Molecular Mass
41 kDa
SDS-PAGE
82-98 kDa

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.

AVI10239

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

Data Images

Binding Activity Binding Activity View Larger

When Recombinant Human CD30 Ligand/TNFSF8 (Catalog # 1028-CL) is immobilized at 0.25 μg/mL, 100 μL/well, it binds Biotinylated Recombinant Human CD30/TNFRSF8 His-tag Avi-tag (Catalog # AVI10239) with an ED50 of 2-10 ng/mL.

SDS-PAGE SDS-PAGE View Larger

2 μg/lane of Recombinant Human CD30/TNFRSF8 His-tag Avi-tag (Catalog # AVI10239) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 82-98 kDa.

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: CD30/TNFRSF8

CD30, also known as Ki-1 antigen and TNFRSF8, is a 120 kDa type I transmembrane glycoprotein belonging to the TNF receptor superfamily (1, 2). Mature human CD30 consists of a 361 amino acid (aa) extracellular domain (ECD) with six cysteine-rich repeats, a 28 aa transmembrane segment, and a 188 aa cytoplasmic domain (3). In contrast, mouse and rat CD30 lack 90 aa of the ECD and contain only three cysteine-rich repeats. Within common regions of the ECD, human CD30 shares 53% and 49% aa sequence identity with mouse and rat CD30, respectively. Alternate splicing of human CD30 generates an isoform that includes only the C‑terminal 132 aa of the cytoplasmic domain. CD30 is normally expressed on antigen-stimulated Th cells and B cells (4‑6). However, it is up‑regulated in Hodgkin’s disease (on Reed-Sternberg cells), other lymphomas, chronic inflammation, and autoimmunity (7). CD30 binds to CD30 Ligand/TNFSF8 which is expressed on activated Th cells, monocytes, granulocytes and medullary thymic epithelial cells (1, 5). CD30 signaling co‑stimulates antigen-induced Th0 and Th2 proliferation and cytokine secretion but favors a Th2-biased immune response (8). In the absence of antigenic stimulation, it can still induce T cell expression of IL‑13 (9). CD30 contributes to thymic negative selection by inducing the apoptotic cell death of CD4+CD8+ T cells (10, 11). In B cells, CD30 ligation promotes cellular proliferation and antibody production in addition to the expression of CXCR4, CCL3, and CCL5 (5, 12). An 85‑90 kDa soluble form of CD30 is shed from the cell surface by TACE-mediated cleavage (13, 14). Soluble CD30 retains the ability to bind CD30 Ligand and functions as an inhibitor of normal CD30 signaling (15).

References
  1. Kennedy, M.K. et al. (2006) Immunology 118:143.
  2. Tarkowski, M. (2003) Curr. Opin. Hematol. 10:267.
  3. Durkop, H. et al. (1992) Cell 68:421.
  4. Hamann, D. et al. (1996) J. Immunol. 156:1387.
  5. Shanebeck, S.D. et al. (1995) Eur. J. Immunol. 25:2147.
  6. Gruss, H.-J. et al. (1994) Blood 83:2045.
  7. Oflzoglu E. et al. (2009) Adv. Exp. Med. Biol. 647:174.
  8. Del Prete, G. et al. (1995) J. Exp. Med. 182:1655.
  9. Harlin, H. et al. (2002) J. Immunol. 169:2451.
  10. Amakawa, R. et al. (1996) Cell 84:551.
  11. Chiarle, R. et al. (1999) J. Immunol. 163:194.
  12. Vinante, F. et al. (2002) Blood 99:52.
  13. Hansen, H.P. et al. (1995) Int. J. Cancer 63:750.
  14. Hansen, H.P. et al. (2000) J. Immunol. 165:6703.
  15. Hargreaves, P.G. and A. Al-Shamkhani (2002) Eur. J. Immunol. 32:163.
Entrez Gene IDs
943 (Human); 21941 (Mouse); 25069 (Rat)
Alternate Names
CD30 antigen; CD30; CD30KI-1; CD30L receptor; cytokine receptor CD30; D1S166EKi-1; Ki-1 antigen; Lymphocyte activation antigen CD30; TNFRSF8; tumor necrosis factor receptor superfamily member 8; tumor necrosis factor receptor superfamily, member 8

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