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Recombinant Mouse EphA5 Protein, CF

Catalog #: 3037-A5
3 Citations Datasheet / COA / SDS
Catalog # Availability Size / Price Qty
3037-A5-100
R&D Systems Recombinant Proteins and Enzymes
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Citations (3)
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Summary Product Datasheets Carrier Free Data Images Reconstitution Calculator Background Related Research Areas

Recombinant Mouse EphA5 Protein, CF Summary

Product Specifications

Purity
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain
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. Immobilized rmEphA5 at 2 µg/mL (100 µL/well) can bind rmEphrin-A2/Fc Chimera with a linear range of 0.16-10 ng/mL.
Source
Mouse myeloma cell line, NS0-derived mouse EphA5 protein
Ser58-Pro412, with a C-terminal 6-His tag
Accession #
Q60629
N-terminal Sequence
Analysis
Ser58
Predicted Molecular Mass
40.4 kDa
SDS-PAGE
40-50 kDa, reducing conditions

Product Datasheets

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3037-A5

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.

3037-A5

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

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: EphA5

EphA5, also known as Ehk1, Bsk, Cek7, Hek7, and Rek7, is a member of the Eph receptor tyrosine kinase family which binds members of the Ephrin ligand family (1 - 4). The A and B class Eph proteins have a common structural organization. Activation of kinase activity occurs after membrane-bound or clustered ligand recognition and binding. Reverse signaling is propagated through the Ephrin ligand. The mouse EphA5 cDNA encodes an 877 amino acid (aa) precursor that includes a 26 aa signal sequence, a 386 aa extracellular domain (ECD), a 21 aa transmembrane segment, and a 444 aa cytoplasmic domain (5). The ECD contains an N-terminal globular domain, a cysteine-rich domain, and two fibronectin type III domains. The cytoplasmic domain contains a juxtamembrane motif with two tyrosine residues, which are the major autophosphorylation sites, a kinase domain, and a conserved sterile alpha motif (SAM) (5). Taking into account differences in splice variants between species, comparable regions of the mouse EphA5 ECD share greater than 97% aa sequence identity with bovine, human, and rat EphA5, and 27 - 43% aa identity with mouse EphA1, 2, 3, 4, 6, 7, and 8. Multiple EphA5 splice variants exist and differ in their extracellular and intracellular sequences (5). Mouse EphA5 is expressed exclusively in brain with the highest levels in the hippocampus and limbic system (5). During embryonal development, EphA5 is preferentially expressed in neurons migrating away from the ventricular zone (5). The interaction of EphA5 with its ligands is also involved in the topographic projection of hippocampal, olfactory, and retinotectal neurons (6). Interference in this system by the transgenic expression of soluble EphA5 implicates hippocampal post-synaptic areas for native EphA5 function (7).

References
  1. Poliakov, A. et al. (2004) Dev. Cell 7:465.
  2. Surawska, H. et al. (2004) Cytokine Growth Factor Rev. 15:419.
  3. Pasquale, E.B. (2005) Nat. Rev. Mol. Cell Biol. 6:462.
  4. Davy, A. and P. Soriano (2005) Dev. Dyn. 232:1.
  5. Zhou, R. et al. (1994) J. Neurosci. Res. 37:129.
  6. Zhou, R. (1997) Cell Tissue Res. 290:251.
  7. Martinez, A. et al. (2005) Neuroscience 135:451.
Entrez Gene IDs
2044 (Human); 13839 (Mouse); 79208 (Rat)
Alternate Names
Bsk; Cek7; EC 2.7.10; EC 2.7.10.1; Ehk1; EHK-1; EHK1Hek7; EK7; EPH homology kinase 1; Eph homology kinase-1; EPH receptor A5; EphA5; EPH-like kinase 7; ephrin type-A receptor 5; Hek7; receptor protein-tyrosine kinase HEK7; Rek7; TYRO4HEK7CEK7; tyrosine-protein kinase receptor EHK-1

Citations for Recombinant Mouse EphA5 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.

3 Citations: Showing 1 - 3
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  1. SpiCee: A Genetic Tool for Subcellular and Cell-Specific Calcium Manipulation
    Authors: O Ros, S Baudet, Y Zagar, K Loulier, F Roche, S Couvet, A Aghaie, M Atkins, A Louail, C Petit, C Metin, Y Mechulam, X Nicol
    Cell Rep, 2020-07-21;32(3):107934.
    Species: Mouse
    Sample Types: Whole Tissue
    Applications: Cell Culture
  2. Primary cilia control glucose homeostasis via islet paracrine interactions
    Authors: JW Hughes, JH Cho, HE Conway, MR DiGruccio, XW Ng, HF Roseman, D Abreu, F Urano, DW Piston
    Proc. Natl. Acad. Sci. U.S.A., 2020-04-06;117(16):8912-8923.
    Species: Mouse
    Sample Types: Whole Tissue
    Applications: Bioassay
  3. EphA-Ephrin-A-mediated beta cell communication regulates insulin secretion from pancreatic islets.
    Authors: Konstantinova I, Nikolova G, Ohara-Imaizumi M, Meda P, Kucera T, Zarbalis K, Wurst W, Nagamatsu S, Lammert E
    Cell, 2007-04-20;129(2):359-70.
    Species: Mouse
    Sample Types: Whole Cells, Whole Tissue
    Applications: Bioassay, IHC

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