Báo cáo khoa học: Regulation of maize lysine metabolism and endosperm protein synthesis by opaque and floury mutations potx

... Biochem. 270) Ó FEBS 2003 Regulation of maize lysine metabolism and endosperm protein synthesis by opaque and floury mutations Ricardo A. Azevedo 1 , Catherine Damerval 2 , Jacques Landry 3 , Peter J. ... wild-type maize [9,30,31]. Estimating the percentage of lysine in true proteins by assuming the lysine content of nonzeins is independent of genoty...

Ngày tải lên: 23/03/2014, 15:21

... assay [33]; and (b) leucrose and nigerooligosaccharide were detected by TLC, and their concentrations were determined by HPLC. Simulation of the glucan synthesis reaction The synthesis of insoluble ... courses of the produc- tion of insoluble glucan and other sugars by GSGB were essentially the same as those for GS (Fig. 3). Fig. 1. Schematic structures of GTF-I a...

Ngày tải lên: 14/02/2014, 22:20

... of an isoform of PP1, PP1a [3]. Similarly, activation of caspase-8 and -3 is regulated through their phosphorylation and dephosphorylation. Phosphorylation of caspase-8 at Tyr397 and Tyr465 by Lyn, ... MAPK ERK1 15 37 55 P P P p53 Fig. 1. Regulation of DNA fragmentation by phosphorylation of the MAPK family and mitochondrial proteins. Phosphorylated ERK prevents the...

Ngày tải lên: 14/02/2014, 22:20

... DNA to RNA to protein, such as control of transcription and mRNA stability, and the relative rate of protein synthesis and degradation. Moreover, the mechanisms by which HSF2 is activated and recruited ... surfaces of unfolded proteins, thereby facilitating refolding of pep- tides and preventing protein aggregation [32]. The dis- covery of an interaction between H...

Ngày tải lên: 18/02/2014, 04:20

... the binding of substrates and other inhibitors and to iden- tify the mechanism by which it regulates the activity of cathepsin B. Results Preparation and characterization of 2A2 mAb and its Fab ... (2005) Develop- ment and regulation of monoclonal antibody products: challenges and opportunities. Cancer Metastasis Rev 24, 569–584. 28 Kimby E (2005) Tolerability and sa...

Ngày tải lên: 18/02/2014, 11:20

... Department of Molecular Biology, University of Copenhagen, Denmark Synthesis of dTMP by thymidylate synthase proceeds by the reductive methylation of dUMP, which is obtained via one of two parallel ... stochiometry of 1 : 1 of dTTP bound per subunit of dCTP deaminase. Mutational analysis of amino acid residues involved in dTTP regulation of dCTP deaminase The desig...

Ngày tải lên: 18/02/2014, 16:20

... via increased transcription and/ or by stabilization of the CTGF transcripts and t he role of RhoA GTPase and p38 signaling in such a regulation, nuclear run-on assays and message stability analyses ... specific mecha- nisms of this regulation. Acknowledgements This study is supported by t he grant from the National Institutes of Health and National Institute of Diabe...

Ngày tải lên: 19/02/2014, 16:20

... Inhibition of the ATPase activity was then explained by a slowing down of the formation of active complex in solution. On the other hand, the acceleration of the sliding velocity (and the lower number of ... residues 1870 and 11 500 of skeletal muscle titin, two loci where titin is free of interaction with its protein partners and could easily be attacked by V8 protea...

Ngày tải lên: 19/02/2014, 16:20

... Activation of p38 mitogen-activated protein kinase and c-Jun NH(2)-terminal kinase by double- stranded RNA and encephalomyocarditis virus: involve- ment of RNase L, protein kinase R, and alternative pathways. ... Canadian Institutes of Health Research and CANVAC, the Canadian Network for Vaccines and Immunotherapeutics. N.G. was supported by a post- doctoral FRSQ fello...

Ngày tải lên: 07/03/2014, 21:20

... recruitment by DNA-bound SRF of an, as yet, unidentified accessory factor [54]. The regulation of c-jun is complex and may involve an increase in the levels of c-jun protein and/ or phosphorylation of specific ... Expression of the proteins encoded by Ca-RhoA, Ca-Cdc42 and Ca-Rac constructs as shown by Western blot analysis of cells transfected with the corresponding...

Ngày tải lên: 08/03/2014, 08:20