• Species Reactivity

  Human, Mouse, Rat

• Specificity

  Detects human Carbonic Anhydrase III/CA3 in direct ELISAs and Western blots. In direct ELISAs, approximately 5% cross-reactivity with recombinant human (rh) CA1, rhCA2, rhCA4, rhCA9, rhCA10, rhCA13 and rhCA14 is observed.

• Source

  Polyclonal Goat IgG

• Purification

  Antigen Affinity-purified

• Immunogen

  E. coli-derived recombinant human Carbonic Anhydrase III/CA3    
  Ala2-Lys260    
  Accession # P07451

• 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

  See below

• 
  

• Immunoprecipitation

  25 µg/mL

  Conditioned cell culture medium spiked with Recombinant Human Carbonic Anhydrase III (Catalog # ),

• 
  

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: Carbonic Anhydrase III/CA3

Carbonic Anhydrase (CA) catalyzes the reversible reaction of CO₂ + H₂O = HCO₃^- + H⁺, which is fundamental to many processes such as respiration, renal tubular acidification and bone resorption (1).

Topics in a CA meeting (6^th International Conference on the CAs, June 20‑25, 2003, Slovakia) ranged from the use of CAs as markers for tumor and hypoxia in the clinic, as a nutritional supplement in milk, and as a tool for CO₂ removal and mosquito control in industry. CA3 is a cytosolic enzyme with a very low CA activity. It is expressed at low levels in human muscle during early development but increases rapidly during the last trimester to reach 50‑60% of adult levels at birth (2).

• References:

1. Hewett-Emmett, D. and R.E. Tashian (1996) Mol. Phylogenet. Evol. 5:50.

2. Sly, W.S. and P.Y. Hu (1995) Annu. Rev. Biochem. 64:375.

• Entrez Gene IDs:

  761 (Human)

• Alternate Names:

  CA3; CAIII; CA-III; Car3; Carbonate dehydratase III; carbonic anhydrase 3; Carbonic Anhydrase III; carbonic anhydrase III, muscle specific; EC 4.2.1.1