... 28,321–329.26 Jirajaroenrat K, Ponjaroenkit S, Krittanai C, Prapant-hadara L -A & Ketterman AJ (2001) Heterologousexpression and characterization of alternatively splicedglutathione S-transferases ... 2007)doi:10.1111/j.1742-4658.2007.05728.x A highly active glutathione S-transferase was purified from adult Germancockroaches, Blattella germanica. The purified enzyme appeared as a singleband of 24 kDa by SDS⁄ PAGE, and had a different ... the Delta and Epsilon classes, and the remain-ing enzymes are in the Omega, Sigma, Theta and Zetaclasses.The German cockroach (Blattella germanica)isaneconomically important pest that is commonly...