High cellulase (endo-beta-1,4-glucanase) activity was detected in the anterior midgut of the walking
stick (Phasmatodea)Eurycantha calcarata. The enzyme was isolated and analyzed via mass spectrometry.
RT-PCR revealed two endoglucanase genes,EcEG1andEcEG2. Mascot analysis of the purified enzyme confirms it to be the product of geneEcEG1.