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- Title
The transcriptome of adult female Anopheles darlingi salivary glands.
- Authors
Calvo, E.; Andersen, J.; Francischetti, I. M.; del Capurro, M.; deBianchi, A. G.; James, A. A.; Ribeiro, J. M. C.; Marinotti, O.
- Abstract
Anopheles ( Nyssorhynchus) darlingi is an important malaria vector in South and Central America; however, little is known about molecular aspects of its biology. Genomic and proteomic analyses were performed on the salivary gland products of Anopheles darlingi. A total of 593 randomly selected, salivary gland-derived cDNAs were sequenced and assembled based on their similarities into 288 clusters. The putative translated proteins were classified into three categories: (S) secretory products, (H) housekeeping products and (U) products with unknown cell location and function. Ninety-three clusters encode putative secreted proteins and several of them, such as an anophelin, a thrombin inhibitor, apyrases and several new members of the D7 protein family, were identified as molecules involved in haematophagy. Sugar-feeding related enzymes (α-glucosidases and α-amylase) also were found among the secreted salivary products. Ninety-nine clusters encode housekeeping proteins associated with energy metabolism, protein synthesis, signal transduction and other cellular functions. Ninety-seven clusters encode proteins with no similarity with known proteins. Comparison of the sequence divergence of the S and H categories of proteins of An. darlingi and An. gambiae revealed that the salivary proteins are less conserved than the housekeeping proteins, and therefore are changing at a faster evolutionary rate. Tabular and supplementary material containing the cDNA sequences and annotations are available at
- Subjects
SOUTH America; CENTRAL America; ANOPHELES; SALIVARY glands; MALARIA; DNA; ENERGY metabolism; PROTEIN synthesis
- Publication
Insect Molecular Biology, 2004, Vol 13, Issue 1, p73
- ISSN
0962-1075
- Publication type
Article
- DOI
10.1111/j.1365-2583.2004.00463.x