Recombinant Human NKG2C/CD159c Fc Chimera Protein, CF

Catalog #: 138-NK Datasheet / COA / SDS

Catalog #	Availability	Size / Price	Qty
138-NK-050

Recombinant Human NKG2C/CD159c Fc Chimera Protein Binding Activity

2 Images

Product Details

Reviews

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

Recombinant Human NKG2C/CD159c 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

Measured by its ability to bind Recombinant Human CD94 (Catalog # 9270-CD) in a functional ELISA. The ED₅₀ for this effect is 0.3‑2.4 µg/mL.

Source

Human embryonic kidney cell, HEK293-derived human NKG2C/CD159c protein

MD	Human IgG₁ (Pro100-Lys330)	IEGR	Human NKG2C (Glu98-Leu231) Accession # P26717
N-terminus			C-terminus

Accession #

P26717

N-terminal Sequence
Analysis

Met

Structure / Form

Disulfide-linked homodimer

Predicted Molecular Mass

42 kDa

SDS-PAGE

53-62 kDa, reducing conditions

Product Datasheets

138-NK

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.

138-NK

Formulation	Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution	Reconstitute at 400 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

View Larger

Recombinant Human NKG2C/CD159c Fc Chimera (Catalog # 138-NK) binds Recombinant Human CD94 (Catalog # 9270-CD) in a functional ELISA. The ED₅₀ for this effect is 0.3-2.4 µg/mL.

SDS-PAGE

View Larger

2 μg/lane of Recombinant Human NKG2C/CD159c (Catalog # 138-NK) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 53-62 kDa and 110-120 kDa, respectively.

Reconstitution Calculator

Background: NKG2C/CD159c

Human NKG2C (NK cell Group 2 isoform C; Killer cell lectin-like receptor subfamily C, member 2) is a member of the C-type lectin-like superfamily of proteins. Natural killer (NK) receptors are expressed in both NK cells and cytotoxic CD8⁺ T cells and have both activating and inhibitory members (1-3). Regulation of the balance between the activating and inhibitory receptors is important and lack of such regulation has been implicated in autoimmunity (4). The NKG2 family includes seven receptors: NKG2A, -B, -C, -D, -E, -F, and -H, which is the longer isoform of NKG2E. Except for NKG2D and NKG2F, the NKG2 family members form heterodimers with CD94 (5, 6). NKG2C interacts with the adapter molecule DAP12 and acts as activating receptor when heterodimerized with CD94 (7). Human NKG2C is synthesized as a 231 amino acid (aa) protein that includes a 70 aa cytoplasmic domain, a 23 aa transmembrane segment, and a 138 aa extracellular domain (ECD). Within the ECD, human NKG2C shares 40% sequence identity with mouse NKG2C. NKG2C-CD94 heterodimers bind to the widely expressed nonclassical MHC-I molecule, HLA-E (Qa-1b in mouse), which presents a peptide derived from the signal peptide of classical MHC-I molecules (8, 9). Triggering the NKG2C-CD94 complex may activate the cytolytic activity and cytokine production of NK and CD8⁺ T cells (8, 10). Human cytomegalovirus (HCMV) infection promotes the differentiation and expansion of NKG2C⁺ NK cell subsets, possibly involving a cognate interaction of CD94/NKG2C with ligand(s) displayed by HCMV‑infected cells (11, 12).

References

Orbelyan, G.A. et al. (2014) J. Immunol. 193:610.
Tassi I. et al. (2006) Immnunol Rev. 214:92.
Lanier, L.L. (2008) Nat. Immunol. 9:495.
Schleinitz, N. et al. (2010) Immunology. 174:2878.
Lopez-Botet, M. et al. (2000) Hum. Immunol. 61:7.
Braud, V.M. et al. (1998) Nature. 391:795.
Lanier, L.L. (1998) Immunity 8:693.
Vance, R.E. et al. (1999) J Exp Med 190:1801.
Kaiser B.K. et al. (2005) J Immunol 174:2878.
Bellón T. et al. (1999) J Immunol 162:3996.
Pupuleku A. et al. (2017) Front Immunol. 8:1317.
Hammer Q. et al. (2018) Nat Immunol. 19:453.

Long Name

Natural Killer G2C

Entrez Gene IDs

3822 (Human); 16642 (Mouse)

Alternate Names

CD159 antigen-like family member C; CD159c antigen; CD159c; killer cell lectin-like receptor subfamily C, member 2; KLRC2; MGC138244; NK cell receptor C; NKG2-C type II integral membrane protein; NKG2C; NKG2-C; NKG2CNKG2-C-activating NK receptor