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  3. Inhibitory Checkpoint Molecules Stimulatory Immune Checkpoint Molecules NK Cell CD Proteins Macrophage CD Proteins Monocyte CD Proteins Cell Adhesion Molecules (CAMs)
  4. Immunoglobulin-like Cell Adhesion Molecules
  5. PVR/CD155
  6. PVR/CD155 Protein, Human (HEK293, mFc)

The PVR/CD155 protein plays a key role in initiating natural killer (NK) cell effector functions by binding to CD96 and CD226 receptors. These interactions form mature immune synapses that trigger adhesion, lytic granule secretion, interferon-γ (IFN-γ), and cytotoxicity of activated NK cells. PVR/CD155 Protein, Human (HEK293, mFc) is the recombinant human-derived PVR/CD155 protein, expressed by HEK293 , with C-mFc labeled tag.

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Description

The PVR/CD155 protein plays a key role in initiating natural killer (NK) cell effector functions by binding to CD96 and CD226 receptors. These interactions form mature immune synapses that trigger adhesion, lytic granule secretion, interferon-γ (IFN-γ), and cytotoxicity of activated NK cells. PVR/CD155 Protein, Human (HEK293, mFc) is the recombinant human-derived PVR/CD155 protein, expressed by HEK293 , with C-mFc labeled tag.

Background

PVR/CD155 Protein assumes a pivotal role in orchestrating natural killer (NK) cell adhesion and initiating NK cell effector functions by binding to two distinct NK cell receptors, CD96 and CD226. These receptor interactions converge at the cell-cell contact site, culminating in the formation of a mature immunological synapse between the NK cell and the target cell. This event triggers adhesion, secretion of lytic granules, interferon-gamma (IFN-gamma), and activation of cytotoxicity in activated NK cells. PVR/CD155 may additionally facilitate NK cell-target cell modular exchange and PVR transfer to the NK cell, particularly crucial in tumor cells expressing high levels of PVR. In such instances, the transfer mechanism may induce fratricide NK cell activation, providing a mechanism for tumors to evade the immune response. Furthermore, PVR/CD155 is implicated in mediating tumor cell invasion and migration. In the context of microbial infection, the protein acts as a receptor for poliovirus and potentially plays a role in the axonal transport of the virus. This function involves targeting virion-PVR-containing endocytic vesicles to the microtubular network through interaction with DYNLT1, thereby facilitating axonal retrograde transport of the virus.

Species

Human

Source

HEK293

Tag

C-mFc

Accession

P15151-1 (W21-N343)

Gene ID
Molecular Construction
N-term
PVR (W21-N343)
Accession # P15151-1
mFc
C-term
Synonyms
CD155; HVED; NECL5; Necl-5; nectin-like 5; PVR; PVS; Tage4; PVSFLJ25946; FLJ25946
Molecular Weight

75-100 kDa

Purity

Greater than 95% as determined by Tris-Bis PAGE.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Documentation
Help & FAQs
  • How should lyophilized recombinant proteins be reconstituted and stored?

    1. Before opening the cap, centrifuge the vial at 13000 rpm for 20-30 seconds. This step will ensure that any lyophilized powder that may have adhered to the cap or walls is collected at the bottom of the vial, minimizing the risk of product loss. 2. Taking 10 μg as an example, first add 20 μL of reconstituted solution provided by MCE and use a pipette to gently resuspend the lyophilized protein until it is fully dissolved.. (For most proteins, the reconstitution solution we provide is sterile water. If a diluent other than water is required, it will be indicated in the product's Certificate of Analysis (COA).). 3. Add an additional 80 μL of buffer/culture medium containing carrier protein (either 0.1% BSA, 5% HSA, 10% FBS, or 5% trehalose), and then use a pipette to gently mix until uniform. The final concentration is should not be lower than 100 μg/mL. 4. Aliquot at least 20 μL per tube. 5. After aliquoting, store it frozen at a temperature ranging from -20ºC to -80ºC, and it can be preserved for 3 to 6 months.

  • How should solution-form recombinant proteins be stored?

    1. The product can be stored in its original form and diluted as needed upon use. 2. Alternatively, dilute with a buffer/culture medium containing a carrier protein (either 0.1% BSA, 5% HSA, 10% FBS, or 5% alginate), mix well by pipetting, and ensure that

  • Why is it necessary to add carrier proteins?

    Carrier proteins are commonly added to enhance the stability of recombinant proteins, preventing them from adhering to the walls of the container during freezing or thawing processes. Plastic tubes have a certain adsorptive capacity for proteins, which may lead to difficulty in separating the protein from the tube walls, resulting in a decrease in the actual concentration of the protein in the solution and thus affecting its activity. To minimize such losses, it is recommended to add a commonly used carrier protein solution prior to the long-term storage of recombinant protein products.

  • Carrier protein types and options?

    In cases where the carrier protein is not expected to influence the experimental outcomes, an appropriate carrier protein, such as 0.1% BSA (Bovine Serum Albumin), 5% HSA (Human Serum Albumin), 10% FBS (Fetal Bovine Serum), or 5% trehalose, can be incorpo

  • Reconstitution Calculator

  • Dilution Calculator

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The reconstitution calculator equation

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration
= ÷

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

The specific activity calculator equation

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)
Unit/mg = 106 ÷ ng/mL

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Product Name:
PVR/CD155 Protein, Human (HEK293, mFc)
Cat. No.:
HY-P78400
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