• Species Reactivity

  Feline

• Specificity

  Detects feline CD8 alpha in direct ELISAs and Western blots. In direct ELISAs and Western blots, approximately 25% cross-reactivity with recombinant mouse CD8 alpha is observed, approximately 5% cross-reactivity with recombinant canine CD8 alpha is observed, and less than 1% cross-reactivity with recombinant human CD8 alpha is observed.

• Source

  Polyclonal Goat IgG

• Purification

  Antigen Affinity-purified

• Immunogen

  Mouse myeloma cell line NS0-derived recombinant feline CD8 alpha    
  Ala22-Tyr188    
  Accession # P41688

• 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

  0.1 µg/mL

  Recombinant Feline CD8 alpha

• 
  

• Immunocytochemistry

  5-15 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 0.2 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: CD8

CD8 is a dimeric complex made up of two Ig superfamily members. The CD8 alpha chain is a 34 kDa type I transmembrane glycoprotein that is disulfide-linked, either to itself forming CD8 alpha alpha, or to an unrelated 30-35 kDa CD8 beta chain, forming CD8 alpha beta. CD8 alpha contains one V-type Ig-like domain in its extracellular region that binds to class I MHC molecules. CD8 alpha beta is a TCR coreceptor, while CD8 alpha alpha promotes T cell survival and differentation. Feline CD8 alpha extracellular region shares 58%, 47%, 51%, and 69% amino acid sequence identity with human, mouse, porcine, and canine CD8 alpha extracellular regions, respectively.

• Entrez Gene IDs:

  925 (Human); 12525 (Mouse); 24930 (Rat); 493799 (Feline)

• Alternate Names:

  CD8; CD8A