Recombinant Human MANF Protein, CF

R&D Systems, part of Bio-Techne | Catalog # 3748-MN

R&D Systems, part of Bio-Techne
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3748-MN-050
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Key Product Details

Source

NS0

Accession #

ACE87065

Conjugate

Unconjugated

Applications

Bioactivity

View all MANF Proteins and Enzymes »

Product Specifications

Source

Mouse myeloma cell line, NS0-derived human MANF protein
Leu22-Leu179 with a C-terminal 6-His tag

Purity

>90%, by SDS-PAGE under reducing conditions and visualized by silver stain.

Endotoxin Level

<0.01 EU per 1 μg of the protein by the LAL method.

N-terminal Sequence Analysis

Leu22

Predicted Molecular Mass

19.0 kDa

SDS-PAGE

20.4 kDa, reducing conditions

Activity

Measured by its ability to support the survival and stimulate neurite outgrowth of rat embryonic cortical neurons.
The ED50 for this effect is 0.7-2.8 μg/mL.

Formulation, Preparation and Storage

3748-MN
Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution
Reconstitute at 200 μg/mL in PBS.

Reconstitution Buffer Available:
Size / Price
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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.

Background: MANF

Mesencephalic astrocyte-derived neurotrophic factor (MANF), also known as arginine-rich, mutated in early stage tumors (ARMET) and arginine-rich protein (ARP), is a 20 kDa member of the ARMET family of proteins (1). The name ARMET comes from the fact that the protein was initially thought to be 50 aa longer at the N-terminus and to contain an arginine-rich region (2-5). The presence of a specific mutation changing the previously numbered codon 50 from ATG to AGG, or deletion of that codon, has been reported in a variety of solid tumors (2-4).  Human MANF is synthesized as a 179 amino acid (aa) precursor that contains a 21 aa signal sequence and a 158 aa mature chain. Mature human MANF is 99%, 98% and 96% aa identical to mature rat, mouse and bovine MANF, respectively. MANF is localized to the endoplasmic reticulum (ER) and Golgi apparatus, and is also secreted (5). In the CNS, MANF selectively protects nigral dopaminergic neurons, versus GABAergic or serotonergic neurons, which suggests that MANF may be indicated for the treatment of Parkinson’s disease (1). MANF is also one of the 12 commonly unfolded protein response (UPR)-up-regulated genes (5). One study showed that MANF plays an important role in protecting cells against tunicamycin and thapsigargin-induced cell death (5). Loss of MANF renders cells more susceptible to those drugs, but also increases cell proliferation and decreases cell size (5). Another study showed that MANF is an endoplasmic reticulum stress response (ERSR) gene in the heart that can be induced and secreted in response to ER stresses, including ischemia, and that extracellular MANF may protect cardiac myocytes in an autocrine and paracrine manner (6).

References

  1. Petrova, P.S. et al. (2003) J. Mol. Neurosci. 20:173.
  2. Shridhar, V. et al. (1996) Oncogene 12:1931.
  3. Shridhar, R. et al. (1996) Cancer Res. 56:5576.
  4. Shridhar, V. et al. (1997) Oncogene 14:2213.
  5. Apostolou, A. et al. (2008) Exp. Cell Res. 314:2454.
  6. Tadimalla, A. et al. (2008) Circ. Res. 103:1249.

Long Name

Mesencephalic Astrocyte-derived Neurotrphic Factor

Alternate Names

ARMET, ARP

Entrez Gene IDs

7873 (Human); 74840 (Mouse); 315989 (Rat)

Gene Symbol

MANF

UniProt

ACE87065

Additional MANF Products

Product Documents for Recombinant Human MANF Protein, CF

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Product Specific Notices for Recombinant Human MANF Protein, CF

For research use only

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