Potent inhibitor of the 20S proteasome (Ki = 21 nM) and 26S proteasome (Ki = 35 nM). Cells treated with 54 μM N-CBZ-Leu-Leu-Norvalinal showed complete block of the G1/S and metaphase transitions and delayed passage through S-phase. Induces apoptosis in Rat-1 and PC12 cells, perhaps by accumulation of stabilized p53.
The type VI secretion system (T6SS) has emerged as a protein secretion system important to several gram-negative bacterial species. One of the common components of the system is Hcp, initially described as a hemolysin co-regulated protein in a serotype O17
Plant phytochromes are thought to transduce light signals by mediating the degradation of phytochrome-interacting transcription factors (PIFs) through the N-terminal photosensory module, while the C-terminal module, including a histidine kinase-related domain (HKRD), does not participate in signaling. Here we show
Journal of bacteriology, 191(22), 6911-6917 (2009-09-08)
Vibrio cholerae is the etiologic agent of cholera in humans. Intestinal colonization occurs in a stepwise fashion, initiating with attachment to the small intestinal epithelium. This attachment is followed by expression of the toxin-coregulated pilus, microcolony formation, and cholera toxin
Journal of bacteriology, 191(18), 5669-5679 (2009-07-14)
Vibrio cholerae is highly motile by the action of a single polar flagellum. The loss of motility reduces the infectivity of V. cholerae, demonstrating that motility is an important virulence factor. FlrC is the sigma-54-dependent positive regulator of flagellar genes.
Nuclear lamins are involved in multiple biological processes in metazoan cells. The proteins of the CROWDED NUCLEI (CRWN) family are considered lamin-like candidates in Arabidopsis, although the functions of these proteins are largely unknown. In this article we show that crwn1
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