Recombinant Human 2B4/CD244 protein (His tag)

Specifications

Catalog number

PDMH100145-01

Size / count

20 µg

Dry ice

No

Hazardous

No

Discontinued

No

Background

The CD244 antigen, also known as 2B4, is a cell surface glycoprotein implicated in the regulation of natural killer and T lymphocyte function. 2B4 is a member of the signaling lymphocyte activation molecule (SLAM) -related receptor family and is important for stimulating NK cell cytotoxicity and cytokine production, which is expressed on all NK cells, a subpopulation of T cells, monocytes and basophils. The 2B4 antigen identified on NK cells and T cells is capable of transmitting stimulatory signals and non-MHC-restricted killing. Reported as an activating receptor, human 2B4 can effectively activate and enhance NK cell&ndash, mediated cytotoxicity, induce secretion of IFN-&gamma, and matrix metalloproteinases (MMPs), as well as NK cell invasiveness. As a cell surface glycoprotein of the Ig-superfamily structurally related to CD2-like molecules such as CD2, CD48, CD58, CD84, Ly-9, and SLAM, 2B4 (CD244) is expressed on all human NK cells, a subpopulation of T cells, basophils and monocytes. 2B4 activates NK cell mediated cytotoxicity, induces secretion of IFN-gamma and matrix metalloproteinases, and NK cell invasiveness.

Abbreviation

2B4; CD244

Synonyms

2B4; CD244; NAIL; NK cell activation-inducing ligand; NKR2B4; Natural killer cell receptor 2B4; SLAM family member 4; SLAMF4; h2B4

UniProt

Q9BZW8

Accession Number

Q9BZW8

Expression System

HEK293 Cells

Tag

C-His

Sequence

Met1-Arg221

Field of Research

Immunology; Stem cells

Endotoxin

< 1.0 EU/mg of the protein as determined by the LAL method.

Purity

> 95% as determined by reducing SDS-PAGE.

Bioactivity

Not validated for activity

Reconstitution

It is recommended that sterile water be added to the vial to prepare a stock solution of 0.5 mg/mL. Concentration is measured by UV-Vis.

Shipping Conditions

This product is provided as lyophilized powder which is shipped with ice packs.

Storage Conditions

Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80°C. Reconstituted protein solution can be stored at 4-8°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.

Calculated Molecular Weight

24.2 kDa

Observed Molecular Weight

40 kDa

Species

Human