• Species Reactivity

  Human

• Specificity

  Detects human PSMA/FOLH1/NAALADase I in direct ELISA and Western blot. In direct ELISAs, less than 10% cross-reactivity with recombinant human (rh) NAALADase-like 2 and no cross-reactivity with rhNAALADase-like 1, rhNAALADase-like 3, recombinant mouse (rm) NAALADase I, or rmNAALAase-like 2 is observed.    
   

• Source

  Monoclonal Mouse IgG    _2A Clone # 460420

• Purification

  Protein A or G purified from hybridoma culture supernatant

• Immunogen

  Chinese hamster ovary cell line CHO-derived recombinant human PSMA/FOLH1/NAALADase I    
  Lys44-Ala750    
  Accession # Q04609

• 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

  2 µg/mL

  See below

• 
  

• Flow Cytometry

  2.5 µg/10    ⁶ cells

  See below

• 
  

• Immunohistochemistry

  8-25 µg/mL

  See below

• 
  

• CyTOF-ready

  Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.

• 
  

• 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: PSMA/FOLH1/NAALADase I

Human prostate-specific membrane antigen (PSMA), a tumor marker in prostate cancer encoded by the FOLH1 gene, is a type II transmembrane zinc metallopeptidase that is most highly expressed in the nervous system, prostate, kidney, and small intestine (1, 2). The enzyme is also known as glutamate carboxypeptidase II (GCPII), folate hydrolase 1, folypoly-gamma-glutamate carboxypeptidase (FGCP), and N-acetylated-alpha-linked acidic dipeptidase I (NAALADase I). In the brain, PSMA hydrolyzes the neurotransmitter N-acetyl-Asp-Glu to produce glutamate, another neurotransmitter. Inhibition of brain PSMA activity is considered to be a promising approach for the treatment of neurological disorders associated with glutamate excitotoxicity, such as stroke, chronic pain, and amyotrophic lateral sclerosis (3). Intestinal PSMA hydrolyzes folylpoly-gamma -glutamates, facilitating the uptake of folate (4).

• References:

1. Silver, D.A. et al. (1997) Clin. Cancer Res. 3:81.

2. Carter, R.E. et al. (1996) Pro. Natl. Acad. Sci. USA. 93:749.

3. Jackson, P.F. and Slusher, B.S. (2001) Curr. Med. Chem. 8:949.

4. Heston, W.D. (1997) Urology 49:104.

• Long Name:

  Prostate-specific Membrane Antigen

• Entrez Gene IDs:

  2346 (Human); 53320 (Mouse); 85309 (Rat)

• Alternate Names:

  Cell growth-inhibiting gene 27 protein; cell growth-inhibiting protein 27; EC 3.4.17.21; FGCP; folate hydrolase (prostate-specific membrane antigen) 1; Folate hydrolase 1; FOLH1; FOLHNAALADase I; Folylpoly-gamma-glutamate carboxypeptidase; GCP2; GCPII; GCPIImGCP; glutamate carboxylase II; glutamate carboxypeptidase 2; Glutamate carboxypeptidase II; Membrane glutamate carboxypeptidase; mopsm; NAALAD1; NAALAD1N-acetylated-alpha-linked acidic dipeptidase I; NAALADase I; NAALAdase; N-acetylated alpha-linked acidic dipeptidase 1; prostate specific membrane antigen variant F; Prostate-specific membrane antigen; PSMA; PSMAFGCP; PSMPteroylpoly-gamma-glutamate carboxypeptidase