OZ Biosciences Blog

Wednesday, June 12, 2013

Protein concentration in SGE of Aedes albopictus measurement using Bradford Protein Assay Kit (B-Pak)

Determination of protein concentration in Salivary gland extracts (SGE) of aedes albopictus was performed using Bradford Protein Assay Kit (B-Pak) from OZ Biosciences.

This article demonstrate the capacity of the Bradford Protein Assay Kit from OZ Biosciences  to efficiently measure the protein concentration in SGE from aedes albopictus.

article reference: Insect Mol Biol. 2013 May 29.

First screening of Aedes albopictus immunogenic salivary proteins.
Doucoure S, Cornelie S, Patramool S, Mouchet F, Demettre E, Seveno M, Dehecq JS, Rutee H, Herve JP, Favier F, Missé D, Gasque P, Remoue F.

Abstract

Study of the human antibody (Ab) response to Aedes salivary proteins can provide new biomarkers to evaluate human exposure to vector bites. The identification of genus- and/or species-specific proteins is necessary to improve the accuracy of biomarkers. We analysed Aedes albopictus immunogenic salivary proteins by 2D immunoproteomic technology and compared the profiles according to human individual exposure to Ae. albopictus or Ae. aegypti bites. Strong antigenicity to Ae. albopictus salivary proteins was detected in all individuals whatever the nature of Aedes exposure. Amongst these antigenic proteins, 68% are involved in blood feeding, including D7 protein family, adenosine deaminase, serpin and apyrase. This study provides an insight into the repertoire of Ae. albopictus immunogenic salivary proteins for the first time.

The Bradford Protein Assay Kit (B-Pak) from OZ Biosciences is a straightforward and rapid procedure for determining the concentration of protein in solution.

The B-Pak is based on the binding of Coomassie Brilliant Blue G-250 dye to the proteins and particularly basic and aromatic amino acids residues. The dye exists in three forms: cationic (red), neutral (green) and anionic (blue).

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