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Recombinant Human VSIG3 Fc Chimera Avi-tag Protein, CF

Catalog #: AVI9229 Datasheet / COA / SDS
Biotinylated
Catalog # Availability Size / Price Qty
AVI9229-050
Recombinant Human VSIG3 Fc Chimera Avi-tag Protein Binding Activity
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Summary Product Datasheets Carrier Free Data Images Reconstitution Calculator Background Related Research Areas

Recombinant Human VSIG3 Fc Chimera Avi-tag Protein, CF Summary

Learn more about Avi-tag Biotinylated Proteins

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 binding ability in a functional ELISA. When Recombinant Human VISTA/B7-H5/PD-1H Fc Chimera Protein (Catalog # 7126-B7) is immobilized at 2.5 μg/mL (100 μL/well), the concentration of Biotinylated Recombinant Human VSIG3 Fc Chimera Avi-tag (Catalog # AVI9229) that produces 50% of the optimal binding response is found to be approximately 3-15 μg/mL. Measured by its ability to inhibit anti-CD3 antibody induced IL-17 or IFN-gamma secretion by human peripheral blood mononuclear cells (PBMC). The ED50 for this effect is 1-10 μg/mL.
Source
Chinese Hamster Ovary cell line, CHO-derived human VSIG3 protein
Human VSIG3
(Leu23-Gly245)
Accession # Q5DX21.3		IEGRMDHuman IgG1
(Pro100-Lys330) 		Avi-tag
N-terminusC-terminus
Accession #
Q5DX21.3
N-terminal Sequence
Analysis
Leu23
Structure / Form
Disulfide-linked homodimer, biotinylated via Avi-tag
Predicted Molecular Mass

52 kDa

SDS-PAGE
62-69 kDa, under reducing conditions

Product Datasheets

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AVI9229

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.

AVI9229

Formulation Supplied as a 0.2 μm filtered solution in PBS.
Shipping The product is shipped with dry ice or equivalent. 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, -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after opening.
  • 3 months, -20 to -70 °C under sterile conditions after opening.

Scientific Data

Binding Activity Recombinant Human VSIG3 Fc Chimera Avi-tag Protein Binding Activity View Larger

When Recombinant Human VISTA/B7-H5/PD-1H Fc Chimera Protein (Catalog # 7126-B7) is immobilized at 2.5 µg/mL (100 µL/well), the concentration of Biotinylated Recombinant Human VSIG3 Fc Chimera Avi-tag (Catalog # AVI9229) that produces 50% of the optimal binding response is found to be approximately 3-15 µg/mL.

SDS-PAGE Recombinant Human VSIG3 Fc Chimera Avi-tag Protein SDS-PAGE View Larger

2 μg/lane of Biotinylated Recombinant Human VSIG3 Fc Chimera Avi-tag (Catalog # AVI9229) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 62-69 kDa and 120-140 kDa, respectively.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Background: VSIG3

VSIG3, also known as IGSF11, BT-IgSF, and CLMP, is an approximately 50 kDa transmembrane adhesion protein (1). Mature human VSIG3 consists of a 219 amino acid (aa) extracellular domain (ECD) that contains two tandem Ig-like domains, a 21 aa transmembrane segment, and a 169 aa cytoplasmic domain (2). Within the ECD, human VSIG3 shares 95% aa sequence identity with mouse and rat VSIG3. Alternative splicing generates additional isoforms with a substituted signal peptide that may also have a deletion in the second Ig-like domain (3). VSIG3 is expressed on epithelial and endothelial cells, neurons and glial cells, and platelets (2-4). It localizes to epithelial tight junctions and mediates homophilic in trans cell adhesion (3-5). VSIG3 also localizes to neuronal postsynaptic densisties where it recruits the GluA1 and GluA2 subunits of AMPA receptors and supports excitatory synaptic transmission (6). The short isoform can be up-regulated in gastric cancer (7). In zebrafish, VSIG3 is expressed in melanophores and their precursors and plays a role in the development and patterning of pigment cells (8).

References
  1. Schreiber, J. et al. (2014) Adv. Neurobiol. 8:21.
  2. Suzu, S. et al. (2002) Biochem. Biophys. Res. Commun. 296:1215.
  3. Katoh, M. and M. Katoh (2003) Int. J. Oncol. 23:525.
  4. Raschperger, E. et al. (2004) J. Biol. Chem. 279:796.
  5. Harada, H. et al. (2005) J. Cell. Physiol. 204:919.
  6. Jang, S. et al. (2016) Nat. Neurosci. 19:84.
  7. Watanabe, T. et al. (2005) Cancer Sci. 96:498.
  8. Eom, D.S. et al. (2012) PLoS Genet. 8:e1002899.
Long Name
V-Set and Immunoglobulin Domain Containing 3
Entrez Gene IDs
152404 (Human); 207683 (Mouse); 303926 (Rat); 102146257 (Cynomolgus Monkey)
Alternate Names
Brain and testis-specific immunoglobulin superfamily protein; BTIGSF; BT-IgSF; cancer/testis antigen 119; CT119; CXADR like 1; CXADRL1; IGSF11; Igsf13; immunoglobulin superfamily member 11; immunoglobulin superfamily, member 11; MGC35227; V-set and immunoglobulin domain containing 3; V-set and immunoglobulin domain-containing protein 3; VSIG3; VSIG3brain and testis-specific immunoglobin superfamily protein

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