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Metacaspases are cysteine proteinases that have homology to caspases, which play a central role in signaling and executing programmed cell death in animals. A type II metacaspase cDNA, NbMCA1, was amplified from Nicotiana benthamiana infected with Colletotrichum destructivum. It showed a peak in expression at 72 h postinoculation corresponding with the switch to necrotrophy by C. destructivum. ...

It was found that the fusion (His)6-movement proteins (MPs) of two tobamoviruses (TMV UI and a crucifer-infecting tobamovirus, crTMV) were efficient nonspecific translational repressors. The in vitro translation of viral RNAs was blocked by incomplete 30K MP-RNA complexes formed at the MP:RNA molar ratios of 100-150:1. Similar results were obtained with the barley stripe mosaic hordeivirus (BSM...

conclusions by employment of gene optimization strategies, use of viral-based vectors and suppression of plant-derived gene silencing effect, efficient transient expression of hcvcp in tobacco with proper antigenic properties could be possible. background hepatitis c virus (hcv) is major cause of liver cirrhosis in humans. hcv capsid (core) protein (hcvcp) is a highly demanded antigen for vario...