Biological Activity of Steroids from the Marine Gastropods Collected from South West Coast of India.

Background: The purpose of this study was to investigate the sterol profiling and predict the pharmacological potential of marine gastropod , collected from mangrove ecosystem in the South west coast of India.

Methods: Sterol fractions were separated from the crude lipids using 15% ethyl acetate. Ethyl acetate fractions were dried under ultrahigh purity N and analyzed using GC-MS.

Heavy metal concentrations in some gastropods and bivalves collected from the fishing zone of South India.

The present study investigates heavy metal concentrations in gastropods and bivalves collected from major fishing centers in South India. Three gastropods, Bursa spinosa, Tibia curta, and Murex trapa, and two bivalves, Perna viridis and Villoritta cyprinoids, were collected for the analysis of heavy metals. The metals in the present study followed the order Mg>Ca>Zn>Fe>Cu>Mn>Cr>Pb>Ni>Co>Cd.

Three-dimensional solution structures of the chromodomains of cpSRP43.

Chloroplasts contain a unique signal recognition particle (cpSRP). Unlike the cytoplasmic forms, the cpSRP lacks RNA but contains a conserved 54-kDa GTPase and a novel 43-kDa subunit (cpSRP43). Recently, three functionally distinct chromodomains (CDs) have been identified in cpSRP43.