A model of multiprotein complex constituted by these accessory proteins and formed between two membrane bilayers has been proposed. However, very little is known about the function of the individual components and the actual protein-protein interactions in such complex. Our main goal is to elucidate the molecular mechanism of extracellular protein secretion in gram-negative bacteria. If the truncated XpsL protein, in the absence of its integral function, still preserves the binding affinity with other accessory components, the concerted secretion machinery might be interfered and exhibit a decrease in secretion ability. Using such transdominant interference strategy, the protein-protein interactions between XpsL and other accessory proteins can be surveyed and the molecular role of XpsL in participating the multiprotein complex will be pictured.
Rice is a major crop with the smallest size of genome among cultivated crops and vegetables.
The identification and characterization of genes involved in embryogenesis are important tasks for understanding the embryo and seed development. Almost exclusively, such studies have been dealing with maize and Arabidopsis so far. Phytochrome A and Phytochrome B mediate the hypocotyl-specific downregulation of TUB1 by light in Arabidopsis thaliana . Plant Cell 7, 2187-2196. EMB30 is essential for normal cell division, cell expansion, and cell adhesion in Arabidopsis and encodes a protein that has similarity to Sec7.