• Species Reactivity

  Human, Mouse, Rat

• Specificity

  Detects human, mouse, and rat PKM2 in Western blots and detects recombinant human PKM2 in direct ELISAs.

• Source

  Polyclonal Sheep IgG

• Purification

  Antigen Affinity-purified

• Immunogen

  E. coli-derived recombinant human PKM2    
  Ser434-Pro531    
  Accession # P14618

• 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

  0.2 µg/mL

  See below

• 
  

• Simple Western

  2 µg/mL

  See below

• 
  

• Immunohistochemistry

  5-15 µg/mL

  See below

• 
  

• Immunocytochemistry

  5-15 µg/mL

  See below

• 
  

• Knockout Validated

  PKM2 is specifically detected in HeLa humancervical epithelial carcinoma parental cell line but is not detectable inPKM2 knockout HeLa cell line.

• 
  

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

  Sterile PBS to a final concentration of 0.2 mg/mL.

• 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: PKM2

PKM2 (Pyruvate Kinase isoenzyme M2; also p58, OIP3, THBP1 and CTHBP) is a 58-60 kDa member of the PK family of enzymes. It is widely expressed, being found both intracellularly and in blood, and represents the more common splice variant of the PKM gene. PKM2 generates ATP and pyruvate by catalyzing the transfer of a phosphoryl group from PEP to ADP. Thus, when active, PKM2 promotes energy production and glycolysis. PKM2 exists as a marginally active monomer, with full activity achieved through homotetramerization. Notably, in tumor cells, select oncogenes appear to induce PKM2 homodimerization which limits PKM2 activity. PKM2 is known to be regulated by the binding of T3 and Fru-1,6-bisP. Human PKM2 is 531 amino acids (aa) in length. It contains a catalytic region (aa 43‑527) plus four utilized Ser/Thr and Tyr phosphorylation sites, respectively. PKM1 is another PKM gene splice variant that shows a 45 aa substitution for  
aa 389‑433 of PKM2. This variant shows limited expression (striated muscle) and hyperbolic Michaelis-Menten kinetics. There are additional isoform variants of PKM2 that show either a deletion of aa 59‑132, or a 67 aa substitution for aa 1‑82. Over aa 434‑531, human PKM2 shares 95% aa sequence identity with mouse PKM2.

• Long Name:

  Pyruvate Kinase, Muscle

• Entrez Gene IDs:

  5315 (Human); 18746 (Mouse); 25630 (Rat)

• Alternate Names:

  CTHBP; Cytosolic thyroid hormone-binding protein; MGC3932; OIP3; OIP-3; OIP3EC 2.7.1.40; Opa-interacting protein 3; p58; PK, muscle type; PK2; PK3; PK3PKM; PKM2; Pyruvate kinase 2/3; pyruvate kinase isozymes M1/M2; Pyruvate kinase muscle isozyme; pyruvate kinase, muscle; TCB; THBP1; THBP1p58; Thyroid hormone-binding protein 1; thyroid hormone-binding protein, cytosolic; Tumor M2-PK