Identification of putative proteins involved in granule biogenesis of tick salivary glands
β Scribed by Ben J. Mans; Jacobus D. Venter; Pieter J. Vrey; Abraham I. Louw; Albert W. H. Neitz
- Book ID
- 101390640
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 123 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0173-0835
No coin nor oath required. For personal study only.
β¦ Synopsis
Identification of putative proteins involved in granule biogenesis of tick salivary glands
Ticks secrete bioactive components during feeding that assist them in gaining a blood meal. Compounds secreted are stored in granules until a stimulus induces secretion during feeding. Biogenesis of tick secretory granules has not been investigated before. An adequate understanding of granule biogenesis could advance our understanding of tick salivary gland biology and could aid in the rational design of tick control methods. Putative tick salivary gland proteins 1-4 (TSGP1-4) involved in granule biogenesis were identified in this study based on their abundance in salivary gland extracts and granule preparations and their ability to aggregate under conditions of slight acidity and high calcium concentration. TSGP2 and TSGP3 have been identified as previously described toxic and nontoxic homologues, respectively, while toxicity was also associated with TSGP4.
π SIMILAR VOLUMES
We have identified by immunoblotting and ADP-ribosylation by cholera toxin and pertussis toxin the presence of Mr 43 and 46 KDa Gs alpha, and 39 and 41 KDa Gi alpha subunits in rat parotid gland plasma membranes but not in granule membranes. A Mr 28 KDa polypeptide that served as substrate for ADP-r