Research Article

Sialic Acid Expression in the Mosquito Aedes aegypti and Its Possible Role in Dengue Virus-Vector Interactions

Table 1

Identification of DENV-2 binding proteins from Ae. aegypti SGs and saliva proteins.

Protein nameNCBI accession numberMW (kDa) Number of matched peptidesScore Sequence coverage (%)
GelDatabase

SG protein extract
Apyrase [Aedes aegypti]gi∣55627262.82062.6911440419%
Salivary serpin [Aedes aegypti]gi∣9446932051.61747.7654971260%
D7 protein, putative [Aedes aegypti]gi∣15711332737.20038.6034686244%
Long form D7Bclu1 salivary protein [Aedes aegypti]gi∣1622599237.20038.57958615%
D7 protein [Aedes aegypti]gi∣15955737.20037.0053519%
Putative 34 kDa secreted protein [Aedes aegypti]gi∣1856829634.83336.1541854733%
Putative 34 kDa family secreted salivary protein [Aedes aegypti]gi∣9446833634.83335.6982053333%
30 kDa salivary gland allergen Aed a 3 [Aedes aegypti]gi∣211449732.62827.1303747955%
Allergen, putative [Aedes aegypti]gi∣15713392632.62829.5291321631%
Short form D7Cclu23 salivary protein [Aedes aegypti]gi∣1622599516.94717.6761015024%
Putative salivary C-type lectin [Aedes aegypti]gi∣9446837016.94717.202510417%
Putative 14.5 kDa salivary protein [Aedes aegypti]gi∣9446865014.86217.039611740%
Protein translocation complex beta subunit, putative [Aedes aegypti]gi∣1571383049.39710.32927524%

Saliva
D7 Protein putative [Aedes aegypti]gi∣15711332745.2339.1731817835%

Proteins were identified by LC/ESI-MS/MS analysis after gel trypsin digestion. The table shows the protein name, the NCBI accession number, the theoretical (database) and observed (gel) MWs, the number of peptide sequences matched in the MASCOT database, the corresponding percentage sequence coverage, and the MASCOT score. The criteria used for accepting a protein as a valid identification were two or more tryptic peptide matches with the protein sequence and at least one peptide with < 0.05.