Tài liệu Báo cáo khoa học: Cleavage of nonphenolic b-1 diarylpropane lignin model dimers by manganese peroxidase from Phanerochaete chrysosporium Evidence for a hydrogen abstraction mechanism docx

... Cleavage of nonphenolic b-1 diarylpropane lignin model dimers by manganese peroxidase from Phanerochaete chrysosporium Evidence for a hydrogen abstraction mechanism G. Vijay B. Reddy 1 , Malayam ... 4787–4794. 14. Hammel, K.E., Tien, M., Kalyanaraman, B. & Kirk, T.K. (1985) Mechanism of oxidative C a –C b cleavage of a lignin model d...

Ngày tải lên: 20/02/2014, 23:20

... analyses showed a progressive loss of intact ETA and ETA -A in the presence of ATP, with concomitant generation of ETA and ETA -A fragments. Incubation in the absence of ATP revealed a small amount of degrada- tion ... infection, as assessed by the mitochondrial release of cytochrome c, caspase-9 and caspase-3 activa- tion, and DNA fragmentation. In an in vitro assay, inta...

Ngày tải lên: 18/02/2014, 04:20

... m) for 4 h at 37 °C. Before MS analysis, all samples were stored at )30 °C. MALDI-TOF ⁄ TOF MS analysis Analysis of the digests was conducted by of ine nano- HPLC ⁄ MALDI-TOF ⁄ TOF MS, using a ... sequencing of the nano- ESI–qTOF and MALDI-TOF ⁄ TOF MS data followed by database matching (peaks protein id and spider) [86] was Tropoelastin degradation by elastinolytic MMPs A. He...

Ngày tải lên: 16/02/2014, 14:20

... that a truncated mutant containing five amino acids of the extracellular domain and devoid of any tag was not functional [27], while a mutant containing four amino acids of the ectodomain and including ... strongly argue for a different conformation between the receptor activated by cleavage and shedding on the one hand, and the receptor activated by the ligand on the other...

Ngày tải lên: 21/02/2014, 00:20

... show that a sharp peak (quick up–down conformational change of SERCA) was rarely observed and that the lifetime of the elevated conformation was apparently increased. The increased lifetime of the ... & Kodama A (1965) A new protein factor promoting aggregation of tropomyosin. J Biochem 58, 107–108. 8 Yokokawa M, Wada C, Ando T, Sakai N, Yagi A, Yoshimura SH & Takeyasu...

Ngày tải lên: 14/02/2014, 14:20

... serum aspartate aminotransferase (AST) level increased significantly at 24 h after CLP and this increase was attenuated by GdCl 3 . The malondialdehyde (MDA) level in CLP rats was 1.8-fold that of ... peroxide was assayed by the method of Buege and Aust [38], and 1,1,3,3-tetraethoxypropane (MDA tetraethyl acetal) was used as the standard. Total GSH was determined in liver homogenates a...

Ngày tải lên: 14/02/2014, 18:20

... on domain-swapping ‘Run-away’ and ‘propagated domain-swapping’ models The domain-swapped oligomer can act either as a seed for fibril elongation (propagated domain-swapping) or as an end product (off-pathway ... fibrillation of stefin B at room temperature and at approximately pH 5 is characterized by an extensive lag phase, in which granular aggregates have been observed by TEM and AF...

Ngày tải lên: 14/02/2014, 18:20

... substantia nigra is a neuropathological hallmark of Parkinson’s disease. This leads to a decreased level of dopamine in the striatum. As a result, synaptic transmission is nega- tively affected ... [33,34]. The co-administration of antioxidants like coenzyme Q and creatine has also been shown to be beneficial against a- synuclein aggregation in the substantia nigra pars compacta...

Ngày tải lên: 14/02/2014, 19:20

... interactions. Prediction of alterations in ADP–ATP exchange rate mediated by the ANT caused by alterations in matrix ATP and ADP levels as a result of changes in F 0 F 1 -ATP synthase activity by kinetic modeling The ... is therefore reasonable to assume that a change in matrix ADP– ATP conversion rate caused by a change in F 0 F 1 -ATP synthase activity may not result in an...

Ngày tải lên: 14/02/2014, 19:20

... intercellular epithelial junctions at locally restricted areas before a limited number of bacteria gain access to integrins and inject CagA. The basal injection model of CagA can also explain why H. ... several adhesins such as BabA, BabB, SabA, AlpA and AlpB, as well as OipA, which mediate apical binding of the bacteria (1). Attached H. pylori or those in the mucus secrete virulenc...

Ngày tải lên: 14/02/2014, 19:20