• Species Reactivity

  Human

• Specificity

  Detects human Nesfatin-1/Nucleobindin-2 in direct ELISAs and Western blots.

• Source

  Monoclonal Rat IgG    _2B Clone # 877140

• Purification

  Protein A or G purified from hybridoma culture supernatant

• Immunogen

  E. coli-derived recombinant human Nesfatin-1/Nucleobindin-2    
  Val25-Leu106    
  Accession # P80303

• Formulation

  Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.

• Label

  Unconjugated

Applications

• Recommended    
  Concentration

  Sample

• Western Blot

  3 µg/mL

  See below

• 
  

• Immunohistochemistry

  5-25 µg/mL

  See below

• 
  

• Immunocytochemistry

  8-25 µg/mL

  See below

• 
  

Please Note: Optimal dilutions should be determined by each laboratory for each application.  are available in the Technical Information section on our website.

Data Examples

Preparation and Storage

• Reconstitution

  Reconstitute at 0.5 mg/mL in sterile PBS.

• Shipping

  The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C

• 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.

• 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: Nesfatin-1/Nucleobindin-2

Nesfatin-1 (NEFA Encoded Satiety and Fat-influencing protein 1) is a secreted, 10 kDa peptide derived from the translation product of the NUCB2 gene. Nesfatin-1 is associated with neurons involved in feeding (ARH and PVH) and fluid intake (SON and PVH), in beta cells of the pancreas, and in adipocytes. Its presence peripherally has an anorexigenic effect. Mature human Nesfatin-1 is 82 amino acids (aa) in length. It is the secreted N-terminus of a larger, intracellular 420 aa precursor termed NEFA/Nucleobindin-2/NUCB2. NUCB2 contains a signal sequence (aa 1‑24), Nesfatin-1 (aa 25‑106), a DNA-binding site (aa 171‑223), and two EF-hand regions (aa 241‑276 and 293‑328). Intracellular uncleaved NUCB2 is 45‑50 kDa in size. There is a potential for multiple cleavages, generating Nesfatin-2 (aa 109‑187) and Nesfatin-3 (aa 190‑420). Human Nesfatin-1 shares 85% aa identity with mouse Nesfatin-1.

• Entrez Gene IDs:

  4925 (Human); 53322 (Mouse); 59295 (Rat)

• Alternate Names:

  DNA-binding protein NEFA; NEFA; NEFAGastric cancer antigen Zg4; Nesfatin1; Nesfatin-1; NUCB2; nucleobindin 2; Nucleobindin-2; nucleobinding 2