Recombinant Human LAIR2 Protein, CF

Catalog # Availability Size / Price Qty
2665-LR-050
R&D Systems Recombinant Proteins and Enzymes
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Recombinant Human LAIR2 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 the ability of the immobilized protein to support the adhesion of HT‑29 human colon adenocarcinoma cells. When 5 x 104 cells/well are added to rhLAIR-2 coated plates (50 µg/mL with
100 µL/well), approximately 40%-60% will adhere after 10 minutes at 37° C.
Optimal concentration depends on cell type as well as the application or research objectives.
Source
Mouse myeloma cell line, NS0-derived human LAIR2 protein
Gln22-Pro152, with a C-terminal 6-His tag
Accession #
N-terminal Sequence
Analysis
No results obtained: Gln22 predicted & Thr37
Predicted Molecular Mass
14.9 kDa
SDS-PAGE
20 kDa, reducing conditions

Product Datasheets

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2665-LR

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.

2665-LR

Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution Reconstitute at 100 μg/mL in sterile 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.
Reconstitution Calculator

Reconstitution Calculator

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Background: LAIR2

LAIR-2 (leukocyte-associated Ig-like receptor-2; CD306) is a secreted, 131 amino acid (aa) protein that contains one Ig-like C2 type domain, making it a member of the Ig superfamily. When compared to LAIR-1, its transmembrane counterpart, it shares 83% aa identity across the signal sequence and extracellular domains; (1-3) although one is secreted and one is membrane-bound, the two LAIR proteins are thought to have arisen from a common gene ancestor and appear to share similar adhesion profiles. This suggests that LAIR-2 may compete with LAIR-1 for ligand binding (3, 4). A 114 aa alternate splice form of LAIR-2 is truncated at the C terminus, but retains the entire Ig domain (1-3). The expression profile of these splice forms, and the presence of orthologs in other species, have not been reported.

References
  1. Meyaard, L. (2003) J. Biol. Regul. Homeost. Agents 17:330.
  2. Meyaard, L. et al. (1999) J. Immunol. 162:5800.
  3. Meyaard, L. et al. (1997)  Immunity 7:283.
  4. Xu, X.G. et al. (2005) Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi. 21:553.
Long Name
Leukocyte-associated Ig-like Receptor 2
Entrez Gene IDs
3904 (Human); 102141809 (Cynomolgus Monkey)
Alternate Names
CD306 antigen; CD306; CD306leukocyte-associated Ig-like receptor-2; LAIR2; LAIR-2; leukocyte-associated Ig-like receptor 2; leukocyte-associated immunoglobulin-like receptor 2; MGC71634

Citation for Recombinant Human LAIR2 Protein, CF

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

1 Citation: Showing 1 - 1

  1. The soluble leukocyte-associated Ig-like receptor (LAIR)-2 antagonizes the collagen/LAIR-1 inhibitory immune interaction.
    Authors: Lebbink RJ, van den Berg MC, de Ruiter T, Raynal N, van Roon JA, Lenting PJ, Jin B, Meyaard L
    J. Immunol., 2008-02-01;180(3):1662-9.
    Applications: ELISA (Standard)

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Recombinant Human LAIR2 Protein, CF
By Anonymous on 10/19/2020
Application: Binding assay/Protein-protein interaction