Save

Proteomic identification of an alpha class glutathione S-transferase in freshwater snails (Bulinus globosus)

In: Animal Biology
Authors:
Yetunde A. AyinuolaDepartment of Medical Biochemistry, P.M.B. 013, Obafemi Awolowo University, Ile-Ife, Nigeria

Search for other papers by Yetunde A. Ayinuola in
Current site
Google Scholar
PubMed
Close
and
Isaac O. AdewaleDepartment of Biochemistry and Molecular Biology, P.M.B. 013, Obafemi Awolowo University, Ile-Ife, Nigeria

Search for other papers by Isaac O. Adewale in
Current site
Google Scholar
PubMed
Close
View More View Less
Download Citation Get Permissions

Access options

Get access to the full article by using one of the access options below.

Institutional Login

Log in with Open Athens, Shibboleth, or your institutional credentials

Login via Institution

Purchase

Buy instant access (PDF download and unlimited online access):

$34.95

Abstract

Bulinus globosus is a freshwater snail that serves as intermediate host for Schistosoma haematobium and is known to be drought-tolerant. A previous report on the alteration in the status of glutathione S-transferase (GST) in B. globosus during aestivation and recovery, suggested that GST might be involved in the adaptation of the organism to drought. Therefore, the present study aims to characterize GST isoforms that are displayed in snails under drought stress, sampled during the dry season, and those under recovery, sampled during the rainy season. Our data show that the hepatopancreas contained the highest level of GST compared to foot muscle, hemolymph, and visceral mass. GST activity in the hepatopancreas of snails under drought stress was about 2-3 times higher than that of the recovered snails. Activity staining of a polyacrylamide gel revealed that B. globosus both in the active and inactive state has at least three forms of GST. Based on SDS-PAGE, the multiplicity of the main GSTs in the hepatopancreas of B. globosus (BgGSTs) was further revealed by the presence of five protein bands. In addition, LC-MS/MS analysis of BgGST 2, 3 and 4 revealed the expression of alpha GST. In conclusion, B. globosus exhibits tissue-specific expression of multiple GSTs with elevated activities when the organism is under stress. Elevated activities coupled with an alpha GST class expression accentuate the role of BgGSTs as an antioxidant defense system, in particular under stress conditions.

Content Metrics

All Time Past Year Past 30 Days
Abstract Views 356 56 5
Full Text Views 13 2 0
PDF Views & Downloads 13 4 0