Recombinant Human CA9 Protein, His-tagged, Alexa Fluor 555 conjugated

• Cat.No.: CA9-256HAF555
• Product Overview: Alexa Fluor 555 conjugated recombinant human CA9 (Gln138-Asp414) protein was fused to His-tag at C-terminus and expressed in human 293 cells (HEK293).

Specification

• Description: Carbonic anhydrases (CAs) are a large family of zinc metalloenzymes. CAs form a family of enzymes that catalyze the rapid interconversion of carbon dioxide and water to bicarbonate and protons (or vice versa), a reversible reaction that occurs rather slowly in the absence of a catalyst. One of the functions of the enzyme in animals is to interconvert carbon dioxide and bicarbonate to maintain acid-base balance in blood and other tissues, and to help transport carbon dioxide out of tissues. The active site of most carbonic anhydrases contains a zinc ion. There are at least five distinct CA families (α, β, γ, δ and ε).
  Carbonic anhydrase 9 (CA9/CAIX) is also known as Membrane antigen MN (MN), Renal cell carcinoma-associated antigen G250, which belongs to the alpha-carbonic anhydrase family. CA9/CAIX with an optimal activity at pH 6.49. Reversible hydration of carbon dioxide. CA IX participates in pH regulation. CA9 may be involved in the control of cell proliferation and transformation. CA-IX appears to be a novel specific biomarker for a cervical neoplasia.
• Source: HEK293
• Species: Human
• Tag: His
• Form: Lyophilized
• Molecular Mass: The protein has a calculated MW of 30.9 kDa. The protein migrates as 36 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
• Protein length: Gln138-Asp414
• N-terminal Sequence Analysis: Gln 138
• Endotoxin: < 1.0 EU/ μg by the LAL method.
• Purity: > 95 % as determined by SDS-PAGE
• Characteristic: Disulfide-linked homodimer
  Labeled with Alexa Fluor 555 via amines
  With an excitation and emission maximum of 555/565 nm, Alexa Fluor 555 can be efficiently excited using a 543 nm He-Ne laser line and detected under standard TRITC/Cy3 filters.
• Storage: For long term storage, the product should be stored at lyophilized state at -20 centigrade or lower.
  Please avoid repeated freeze-thaw cycles.
  This product is stable after storage at:
  -20 to -70 centigrade for 12 months in lyophilized state;
  -70 centigrade for 3 months under sterile conditions after reconstitution.
• Storage Buffer: Lyophilized from 0.22 μm filtered solution in 50 mM Tris, 150 mM NaCl, pH7.5, 10% trehalose.
• Reconstitution: It is recommended that sterile water be added to the vial to prepare a stock solution of 0.2 μg/μL. Centrifuge the vial at 4 centigrade before opening to recover the entire contents.

Gene Information

• Gene Name: CA9
• Official Symbol: CA9
• Synonyms: CA9; carbonic anhydrase IX; carbonic anhydrase 9; CAIX; carbonic dehydratase; MN; RCC associated protein G250; pMW1; CA-IX; P54/58N; membrane antigen MN; carbonate dehydratase IX; RCC-associated antigen G250; RCC-associated protein G250; renal cell carcinoma-associated antigen G250
• Gene ID: 768
• mRNA Refseq: NM_001216
• Protein Refseq: NP_001207
• MIM: 603179
• UniProt ID: Q16790

Reviews

08/04/2022

Exceptional consistency, vital for our research's reliability.

12/16/2021

Critical support for our protein analysis and quantification.

02/07/2021

Unmatched accuracy in protein identification and sequencing.

Q&As

What signaling pathways are known to regulate CA9 expression?

The HIF-1 signaling pathway primarily regulates CA9 in response to cellular oxygen levels.

How does CA9 contribute to pH regulation within the tumor microenvironment?

CA9 aids in extracellular acidification, promoting tumor cell survival and invasion in acidic tumor microenvironments.

How is CA9 expression regulated in hypoxic conditions?

CA9 expression is upregulated by the hypoxia-inducible factor (HIF) under low oxygen conditions.

How are elevated levels of CA9 associated with cancer prognosis?

Elevated CA9 levels often correlate with poor prognosis in various cancers due to its role in tumor adaptation to hypoxia.

What post-translational modifications have been identified on CA9?

Potential modifications like glycosylation can be identified using techniques like mass spectrometry.

Are there specific inhibitors that target CA9, especially in cancer therapeutics?

Several inhibitors, like acetazolamide derivatives, have been explored to target CA9 in cancer treatment.

What roles does CA9 play in tumor physiology?

CA9 helps tumors survive in hypoxic conditions by regulating pH through the conversion of CO2 to bicarbonate and protons.