Carbonic Anhydrase 4 Protein, Human, Recombinant (His)

Catalog No. TMPY-00513

Carbonic Anhydrase 4 Protein, Human, Recombinant (His) is expressed in CHO mammalian cells with His tag. The predicted molecular weight is 31.7 kDa and the accession number is P22748-1.

Carbonic Anhydrase 4 Protein, Human, Recombinant (His)

Catalog No. TMPY-00513

Carbonic Anhydrase 4 Protein, Human, Recombinant (His) is expressed in CHO mammalian cells with His tag. The predicted molecular weight is 31.7 kDa and the accession number is P22748-1.

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20 μg	$413	7-10 days

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Product Information

Biological Activity	Measured by its esterase activity. The specific activity is >10 pmol/min/μg.
Description	Carbonic Anhydrase 4 Protein, Human, Recombinant (His) is expressed in CHO mammalian cells with His tag. The predicted molecular weight is 31.7 kDa and the accession number is P22748-1.
Species	Human
Expression System	CHO Cells
Tag	C-His
Accession Number	P22748-1
Synonyms	RP17,carbonic anhydrase IV,Car4,CAIV
Construction	A DNA sequence encoding the human CA4 (NP_000708.1) (Met1-Lys283) without the pro peptide was expressed with a polyhistidine tag at the C-terminus. Predicted N terminal: Ala 19
Protein Purity	> 95 % as determined by SDS-PAGE
Molecular Weight	31.7 kDa (predicted); 34 and 19 kDa (reducing conditions)
Endotoxin	< 1.0 EU/μg of the protein as determined by the LAL method.
Formulation	Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS, pH 7.4. Typically, a mixture containing 5% to 8% trehalose, mannitol, and 0.01% Tween 80 is incorporated as a protective agent before lyophilization.
Reconstitution	A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information.
Stability & Storage	It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.
Shipping	In general, Lyophilized powders are shipping with blue ice.
Research Background	The carbonic anhydrases (or carbonate dehydratases) are classified as metalloenzyme for its zinc ion prosthetic group and form a family of enzymes that catalyze the rapid interconversion of carbon dioxide and water to bicarbonate and protons, a reversible reaction that takes part in maintaining acid-base balance in blood and other tissues. The carbonic anhydrasekl (CA) family consists of at least 11 enzymatically active members and a few inactive homologous proteins. Carbonic anhydrase IV (CAIV) is a membrane-associated enzyme anchored to plasma membrane surfaces by a phosphatidylinositol glycan linkage. CAIV is a high-activity isozyme in CO2hydration comparable to that of CAII. Furthermore, CAIV is more active in HCO3-dehydration than is CAII. However, the esterase activity of CAIV is decreased 150-fold compared to CAII.