Recombinant Mouse Meteorin Protein

R&D Systems | Catalog # 3475-MN

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Key Product Details

  • R&D Systems NS0-derived Recombinant Mouse Meteorin Protein (3475-MN)
  • Quality control testing to verify active proteins with lot specific assays by in-house scientists
  • All R&D Systems proteins are covered with a 100% guarantee

Source

NS0

Accession Number

Q8C1Q4

Applications

Bioactivity
View all Meteorin Proteins and Enzymes »

Product Specifications

Source

Mouse myeloma cell line, NS0-derived mouse Meteorin protein
Gly22-Asp291 with a C-terminal 6-His tag

Purity

>90%, 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.

N-terminal Sequence Analysis

Gly22

Predicted Molecular Mass

30 kDa

SDS-PAGE

33 kDa, reducing conditions

Activity

Measured by its ability to enhance neurite outgrowth of E16-E18 rat embryonic cortical neurons.
This protein is able to significantly enhance neurite outgrowth in the range of 60 ng/3 μL drop‑300 ng/3 μL drop.

Formulation, Preparation, and Storage

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.

Carrier: 3475-MN
Formulation Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
Reconstitution Reconstitute at 100 μg/mL in PBS containing at least 0.1% human or bovine serum albumin.
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.
Carrier Free: 3475-MN/CF
Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution Reconstitute at 100 μg/mL in 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.

Calculators

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: Meteorin

Meteorin, named after meteor because this protein can transform glial cells into cells with an elongated tail, is a 30 kDa member of the Meteorin family (1). The secreted protein is also known as glial cell differentiation factor and hypoxia/reoxygenation regulatory factor. Mouse Meteorin is synthesized as a 291 amino acid (aa) precursor with a 21 aa signal sequence and a 270 aa mature chain (SwissProt # Q8C1Q4).  Splicing variants produce two isoforms. Isoform 2 is missing residues 1‑164 found in isomer 1, and has a two aa substitution for aa 165-166. Mouse Meteorin is 81% aa identical to human Meteorin (2). Meteorin is expressed in the central nervous system both during development and in adult mice (2). During development, Meteorin mRNA appears both in the central and peripheral nervous systems with the most prominent levels in neural progenitors, glial progenitors, and cells of the astrocyte lineage. In the adult mouse, Meteorin is detected only in the brain (2). Within the brain, the most prominent expression is found in the cerebellum where it is expressed by glial cells interspersed between Purkinje neurons (2). Meteorin is also detectable in several discrete neuronal populations, such as the superior colliculus, the ocular motor nucleus, the raphe and pontine nuclei, and various thalamic nuclei (2).Functionally, Meteorin plays important roles in both glial cell differentiation and axonal network formation during neurogenesis (1). In addition, research shows that when Meteorin is expressed and secreted by perivascular astrocytes, it up-regulates thrombospondin-1/-2 to attenuate angiogenesis in the surrounding endothelial cells and to promote vascular maturation (3).

References

  1. Nishino, J. et al. (2004) EMBO J. 23:1998.
  2. Jorgensen, J.R. et al. (2009) J. Mol. Neurosci. March 4 Published online.
  3. Park, J.A. et al. (2008) Glia 56:247.

Alternate Names

METRN

Entrez Gene IDs

79006 (Human); 70083 (Mouse); 287151 (Rat)

Gene Symbol

METRN

UniProt

Q8C1Q4 (Mouse)

Additional Meteorin Products

Product Documents for Recombinant Mouse Meteorin Protein

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot or batch number in the search box below.

Note: Certificate of Analysis not available for kit components.

Download SDS 3475-MN (with carrier)
Download SDS 3475-MN/CF (carrier free)

Product Specific Notices for Recombinant Mouse Meteorin Protein

For research use only

Related Research Areas

Glial Lineage Markers

Citations for Recombinant Mouse Meteorin Protein

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