Báo cáo khoa học: First evidence of catalytic mediation by phenolic compounds in the laccase-induced oxidation of lignin models ppt

... First evidence of catalytic mediation by phenolic compounds in the laccase-induced oxidation of lignin models Francesca d’Acunzo and Carlo Galli Dipartimento ... (undesired routes). In this study, we first investigated the kinetics of oxidation of phenol red by Poliporus pinsitus laccase in the absence of any mediator, and then evaluated the ab...

Ngày tải lên: 23/03/2014, 21:20

... to clarify whether the stoichiometry of the c rings is in uenced by variation of the expression level of subunit c. In the present study we investigated whether the c subunits from the sodium F-ATP ... the diameter of the c rings may be determined by the struc- ture of the c monomer and not by the number of assem- bled subunits. This finding is in a...

Ngày tải lên: 07/03/2014, 21:20

... and ERb was increased in both ERE1 and ERE2 in the presence of E2. Interestingly, the kinetics of E2-dependent binding of ERa and ERb to both ERE1 and ERE2 are differ- ent. The binding of ERa is ... absence of E2, and this binding was increased in the presence of E2 (Fig. 5A,B; compare 0 h and 6–8 h time points). These differences in the kinetic profiles of bind...

Ngày tải lên: 18/02/2014, 14:20

... cycles in such a combination do not touch each other). The value (the sign) of a cycle is the product of the values (the signs) of its steps. The sign o f the magnitude of a Ôminus combined autoinfluence ... negative in the characteristic equation (a positive autoinfluence). The absolute magnitude of a combined autoinfluence path is the product of all the rate...

Ngày tải lên: 19/02/2014, 16:20

... quantified by phosphorimaging of the band corresponding to the full- length protein, and normalizing to the Coomassie blue staining of the same band.) It was next demonstrated that the kinase eluted in fraction ... aldosterone and insulin, as well as intracellular signalling components such as protein kinase C and protein kinase A, were found to increase the in vivo phosp...

Ngày tải lên: 21/02/2014, 03:20

... localized in sucrose gradients by measuring the A 280 of fractions. p26 induced thermotolerance in E. coli Transformed E. coli, incubated overnight with shaking at 37 °C in 2 mL of LB medium, containing ... resem- blance, and the functional analysis mentioned previ- ously, indicate data obtained by examining bacterially produced p26 are indicative of the protein synthesi...

Ngày tải lên: 07/03/2014, 12:20

... found in the FAD49 PX domain, as in many PX domains, suggesting that the PX domain could bind to an SH3 domain of FAD49. To test whether the PX domain could interact with an SH3 domain in FAD49, ... PX domain to phosphoinositides might be regulated by the interaction between the PX domain and the third SH3 domain, as in p47 phox , although whether the interaction of...

Ngày tải lên: 16/03/2014, 04:20

... Mutations in the 23S ribosomal RNA in the vicinity of the double hook binding or in the b-hairpin of protein L22 were shown to bypass the elongation arrest [72]. The swing of protein L22 hairpin tip ... and the L22 double hook should trigger the swing of the entire b-hairpin tip, in a manner similar to that caused by TAO binding. As a result of the swin...

Ngày tải lên: 23/03/2014, 17:22

... molecules as stimuli of Ca 2+ in ux and signalling in yeast is of particular interest. The authors report that these compounds repre- senting intermediates of both sphingolipid biosynthesis and degradation ... Li + ion extrusion from the cell. We therefore investigated whether the loss of halotolerance in isc1D cells was due to the failure of ENA1 induction in the...

Ngày tải lên: 31/03/2014, 09:20

... chain corresponding to the catalytic domain (C domain); and the B chain corresponding to the translocation domain (T domain) and the receptor-binding domain. The C and T domains remain covalently linked by ... of the pro- tein in the N state and the evolution of the overall structure of the protein in the MG state. This degree of resolution is unprecedent...

Ngày tải lên: 16/02/2014, 09:20