báo cáo khoa học: " Identification of novel maize miRNAs by measuring the precision of precursor processing" ppsx

... 23 of the 66 new miRNAs. The targets of two of these newly identified miRNAs were confirmed by 5’RACE. Conclusion: We have implemented a novel method of identifying miRNA by measuring the precision ... component of the transcriptome. Science 2005, 309(5740):1567-1569. doi:10.1186/1471-2229-11-141 Cite this article as: Jiao et al.: Identification of novel...

Ngày tải lên: 11/08/2014, 11:21

... in the etc gene cluster. The N-terminal C-domain of the NRPS catalyzes the a-N-acetylation of haOrn 1 in cis. Cyclorelease of the assembled tetrapeptide mediated by the C-terminal C-domain of ... characterization of these compounds is growing and may result in the synthesis of specific inhibitors based on the structure of the pathogen siderophore [16]. A promi...

Ngày tải lên: 16/02/2014, 09:20

... (i.e. when the young has no immune system of its own), when there is a profound fall in the microbial flora of the pouch [6]. Neither eugenin nor other low molecular mass components of the pouch ... as stimulation of the proliferation of lymphocytes, activa- tion of CCK receptors stimulate production of inter- leukins and secretion of immunoglobulins on the mucosal...

Ngày tải lên: 19/02/2014, 16:20

... the data fit well with the indi- vidual determination of flux control coefficients by PFK, PK and LDH. The role of the las operon is dis- cussed on the basis of the distribution of flux control for ... same operon; the cell can then respond quickly to changes in the environ- ment by changing the expression of only a few genes and using the protein-synthesizing ca...

Ngày tải lên: 19/02/2014, 17:20

... perhaps reflects the difference between the complexities of the regulation of the two systems: a longer time is required for the formation of the complex looping structure in the case of BX-C, while ... approach their proper target promoter in the viscous environment of the nucleus. Somatic pairing of chromosomes and the regulation of Abd-B A peculiarity of...

Ngày tải lên: 20/02/2014, 01:20

... not the release of ATP evoked by action potential firings. The enhancing effect of cADPR on spontaneous release of ATP was: (a) unaf- fected by inhibition of P2 purinoreceptors; (b) abol- ished by ... change the release of ATP evoked by action potential firing. These differential effects of cAD- PR can be explained by differences in the dependence of ‘spontaneous...

Ngày tải lên: 05/03/2014, 23:20

... polymerases, and the solution of the crystal structure of Pol II shows that these two subunits are located close to each other at the surface of the polymerase [29,124] and participate in the tran- scription ... areas of the cell via its N-ter- minal ABD. In the absence of ligand, AR is localized predominantly in the cytoplasm, and its hinge domain and the LBD are...

Ngày tải lên: 07/03/2014, 01:20

... attenuated virulence of the Candida albicans mutant [42]. If synthesized by the Rv1771 l-gulono- 1,4-lactone dehydrogenase, L-AA may represent a novel weapon in the antioxidative arsenal of the pathogen ... the fusion protein was degraded by the host proteases. On the other hand, attempts to produce a His-tagged version of the Rv1771 protein by using the pRSETc...

Ngày tải lên: 07/03/2014, 12:20

... of the THO com- plex for the expression of long genes [14], the GLAM ratios of the two THO mutants were dramatically reduced when compared with the wild type (Fig. 6). The absence of effect of ... several plasmids containing the PHO5 coding region transcribed under the control of the GAL1 promoter, but differing in the length of their 3¢-UTR. To increase the...

Ngày tải lên: 07/03/2014, 12:20

... [18,22,23]. The interaction of phosphorylated LAT with these mole- cules was mediated by the central SH2 domains of Grb2 and Grap. The SH2 domain of both of these pro- teins is flanked by two SH3 ... the composition and stoichiometry of these signaling complexes? What is the molecular mechanism for the induction of these complexes? How does the formation of sign...

Ngày tải lên: 23/03/2014, 15:21