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A3672

Sigma-Aldrich

Azurin

from Pseudomonas aeruginosa, lyophilized powder

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About This Item

CAS Number:
EC Number:
MDL number:
UNSPSC Code:
12352202
NACRES:
NA.61

biological source

Pseudomonas aeruginosa

Quality Level

form

lyophilized powder

composition

Protein, ≥65% Lowry

concentration

≥65.0% (Lowry)

technique(s)

toxicology assay: suitable

solubility

water: soluble 1—1.1 mg/mL, clear, blue (light blue to blue)

UniProt accession no.

storage temp.

−20°C

Gene Information

Pseudomonas aeruginosa ... AZU(878046)

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General description

Research area: Apoptosis. Azurinis a periplasmic protein and is a homotetramer.

Application

Azurin has been used:
  • in the cytotoxicity and cell viability studies in human osteosarcoma cell line
  • for the functionalization of silicon nitride cantilevers for interaction studies
  • for coating gold surface and insulating functionalized oxide surfaces of silicon oxide and mica

Biochem/physiol Actions

Azurin acts as an electron donor for nitrite reductase in bacterial denitrification process. It exhibits anticancer activity as it hampers various independent signaling pathways associated with cancer progression. It binds to tumor suppressor protein p53 and induces cancer cell apoptosis or stalls cancer cell growth. Azurin disrupts angiogenesis by reducing the activity of VEGFR-2tyrosine kinase thereby inhibiting tumor growth. It has been observed to show cytotoxicity in human breast cancer cells and human melanoma cells.
Azurin is a metalloprotein in the family of cupredoxins. It preferentially enters cancer cells over normal cells and induces apoptosis. Azurin has structural similarities to ephrinB2, and in fact binds the ephrin receptor tyrosine kinase EphB2 to initiate cell signaling that is involved in cancer progression. Azurin inhibits autophosphorlyation of the EphB2 tyrosine residue, interfering with upstream cell signaling and contributing to cancer cell growth inhibition.

Physical form

Lyophilized powder containing ammonium acetate buffer salts.

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

常规特殊物品

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Marcel Swart et al.
Chemistry & biodiversity, 9(9), 1728-1738 (2012-09-15)
UV/VIS Electron excitation spectra have been computed for large, realistic model systems of the blue copper protein family. Fully quantum-chemical calculations at the density-functional theory level employing polarized triple-ζ basis sets have been performed on systems of over 120 atoms
Interaction of p53 with Mdm2 and azurin as studied by atomic force spectroscopy
Funari G, et al.
Journal of Molecular Recognition, 23(4), 343-351 (2010)
Yunlei Zhang et al.
Applied and environmental microbiology, 78(21), 7603-7610 (2012-08-28)
Many studies have demonstrated that intravenously administered bacteria can target and proliferate in solid tumors and then quickly be released from other organs. Here, we employed the tumor-targeting property of Escherichia coli Nissle 1917 to inhibit mouse B16 melanoma and
Koyu Fujita et al.
Journal of inorganic biochemistry, 115, 163-173 (2012-08-23)
Pseudoazurin (PAz), a well-characterized blue copper electron-transfer protein, is shown herein to be capable of mediating electron transfer to the nitrous oxide reductase (N(2)OR) from Achromobacter cycloclastes (Ac). Spectroscopic measurements demonstrate that reduced PAz is efficiently re-oxidized by a catalytic
Caterina Bernini et al.
Journal of the American Chemical Society, 135(12), 4822-4833 (2013-03-06)
Many biological electron-transfer reactions involve short-lived tryptophan radicals as key reactive intermediates. While these species are difficult to investigate, the recent photogeneration of a long-lived neutral tryptophan radical in two Pseudomonas aeruginosa azurin mutants (Az48W and ReAz108W) made it possible

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