CD155/PVR Protein, Rat, Recombinant (His Tag)

Product Specifications

Background

CD155, commonly known as PVR (poliovirus receptor) and Necl-5 (nectin-like molecule-5), is a type I transmembrane single-span glycoprotein, and belongs to the nectins and nectin-like (Necl) subfamily. CD155 was originally identified based on its ability to mediate the cell attachment and entry of poliovirus (PV), an etiologic agent of the central nervous system disease poliomyelitis. The normal cellular function is in the establishment of intercellular adherens junctions between epithelial cells. CD155 may assist in an efficient humoral immune response generated within the intestinal immune system. It has been demonstrated that CD155 can be recognized and bond by DNAM-1 and CD96 which promote the adhesion, migration and NK-cell killing, and thus efficiently prime cell-mediated tumor-specific immunity.

Overview

A DNA sequence encoding the extracellular domain of rat PVR (NP_058772.2) (Met 1-Gly 352) was expressed, fused with a polyhistidine tag at the C-terminus.

Gene Name

Poliovirus receptor

Expression System

HEK293 Cells

Tag

C-His

Field of Research

Cancer Drug Targets

Endotoxin

< 1.0 EU per μg of the protein as determined by the LAL method.

Purity

> 97 % as determined by SDS-PAGE.

Activity

Measured by its binding ability in a functional ELISA. Immobilized rat CD155 at 20 μg/ml (100 μl/well) can bind mouse CD226 with a linear range of 6.4-160 ng/ml.

Form

Lyophilized

Buffer

Lyophilized from sterile PBS, pH 7.4. Please contact us for any concerns or special requirements. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.

Function

CD Molecule proteins, Cancer proteins, Immunotherapy proteins, Immune Checkpoint Proteins, Biological Target proteins

Molecular Weight

The recombinant rat PVR comprises 330 amino acids and predicts a molecular mass of 35.8 kDa. As a result of glycosylation, the apparent molecular mass of the rat PVR is approximately 55-65 kDa in SDS-PAGE under reducing conditions.

Storage Conditions

In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature. Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise. Stable for 1 year at -20°C or below from date of shipment. For maximum recovery of product, centrifuge the original vial after thawing and opening the cap. For long-term storage, aliquot and store at -20°C or below. Avoid repeated freeze-thaw cycles.