Recombinant Cynomolgus CD6 His-tag Protein, CF

Catalog # Availability Size / Price Qty
10398-CD-050
Recombinant Cynomolgus CD6 His-tag Protein Binding Activity
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Recombinant Cynomolgus CD6 His-tag 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
Measured by the ability of the immobilized protein to support the adhesion of HuT 78 human cutaneous T cell lymphoma cells. The ED50 for this effect is 0.4-2.4 μg/mL.
Source
Human embryonic kidney cell, HEK293-derived cynomolgus monkey CD6 protein
His18-Glu398, with a C-terminal 6-His tag
Accession #
N-terminal Sequence
Analysis
His18
Predicted Molecular Mass
42 kDa
SDS-PAGE
73-83 kDa, under reducing conditions

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10398-CD

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.

10398-CD

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.

Scientific Data

Binding Activity Recombinant Cynomolgus CD6 His-tag Protein Binding Activity View Larger

Immobilized Recombinant Cynomolgus CD6 His-tag Protein (Catalog # 10398-CD) supports the adhesion of HuT 78 human cutaneous T cell lymphoma cells. The ED50 for this effect is 0.4-2.4 μg/mL.

SDS-PAGE Recombinant Cynomolgus CD6 His-tag Protein SDS-PAGE View Larger

2 μg/lane of Recombinant Cynomolgus Monkey CD6 His-tag (Catalog # 10398-CD) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 73-83 kDa.

Reconstitution Calculator

Reconstitution Calculator

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Background: CD6

CD6 is a member of the scavenger receptor cysteine­-rich (SRCR) superfamily, which is characterized by the presence of one or several repeats of SRCR domains in their extracellular region (1). CD6 is a type I transmembrane glycoprotein and contains three extracellular SRCR domains (2, 3). It is expressed on thymocytes, T cells, a subset of B cells, and on certain regions of the brain (3, 4). Mature cynomolgus CD6 includes an extracellular domain (ECD), a transmembrane segment, and a cytoplasmic region. Within the ECD, cynomolgus CD6 shares 94% amino acid sequence identity with human CD6. CD6 appears to play a role as both a co­-stimulatory molecule in T cell activation and as an adhesion receptor. Studies demonstrating a mitogenic effect for T cells with some CD6 ­specific monoclonal antibodies, in conjunction with either accessory cells or PMA and anti-­CD2 mAb, support the concept of CD6 as a co­-stimulatory molecule (7-­12). Additionally, anti­-CD6 monoclonal antibody has been used as an immunosuppressive agent for patients undergoing kidney or bone marrow allograft rejection. It has also been used to remove CD6+ T cells from donor bone marrow prior to allogenic bone marrow transplantation. Other studies have demonstrated an adhesive role for CD6. It has been demonstrated to bind the activated leukocyte cell adhesion molecule (ALCAM, CD166). CD6/ALCAM interactions have been postulated to play a role in thymocyte development (9, 13). Additionally, the presence of ALCAM on neuronal cells may provide a mechanism of interaction between CD6+ T cell and ALCAM+ neuronal cells. Phosphorylation of the CD6 molecule appears to play a role in CD6 ­mediated signal transduction (9, 13). Serine and threonine residues become hyperphosphorylated and tyrosine residues become phosphorylated when T cells are activated with anti­-CD6 mAb in conjunction with PMA, anti­-CD2, or anti-­CD3 mAb (8, 10, 11, 14). The CD6 intracellular domain contains regions that can interact with SH2 or SH3 ­containing proteins. However, the signaling pathways have not been elucidated (5, 15, 16).

References
  1. Sarrias, M. et al. (2007) Proc. Natl. Acad. Sci. USA. 104:11724.
  2. Chappell, P. et al. (2015) Structure. 23:1426.
  3. Whitney, G.S. et al. (1995) J. Biol. Chem. 270:18187.
  4. Mayer, B. et al. (1990) J. Neuroimmunol. 29:193.
  5. Robinson, W.H. et al. (1995) J. Immunol. 155:4739.
  6. Aruffo, A. et al. (1997) Immunol. Today 18:498.
  7. Gangemi, R. et al. (1989) J. Immunol. 143:2439.
  8. Swack, J.A. et al. (1991) J. Biol. Chem. 266:7137.
  9. Starling, G.C. et al. (1996) Eur. J. Immunol. 26:738.
  10. Swack, J.A. et al. (1989) Mol. Immunol. 26:1037.
  11. Pawelec, G. and H.J. Buhring (1991) Human Immunol. 31:165.
  12. Singer, N.G. et al. (1996) Immunology 88:537.
  13. Degen, W.G. et al. (1998) Am. J. Pathol. 152:805.
  14. Osorio, L.M. et al. (1995) Cell Immunol. 166:44.
  15. Robinson, W.H. et al. (1995) Eur. J. Immunol. 25:2765.
  16. Whitney, G. et al. (1995) Mol. Immunol.  32:89.
Entrez Gene IDs
923 (Human); 12511 (Mouse); 102143944 (Cynomolgus Monkey)
Alternate Names
CD6 antigenFLJ44171; CD6 molecule; CD6; T12; Tp120; TP120T-cell differentiation antigen CD6

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