Tài liệu Báo cáo Y học: Differential effects of arachidonoyl

Tài liệu Báo cáo Y học: Differential effects of arachidonoyl triﬂuoromethyl ketone on arachidonic acid release and lipid mediator biosynthesis by human neutrophils pot

... AA-SF). 3766 A. N. Fonteh (Eur. J. Biochem. 269) Ó FEBS 2002 Differential effects of arachidonoyl triﬂuoromethyl ketone on arachidonic acid release and lipid mediator biosynthesis by human neutrophils Evidence ... studies by demon- strating that inhibition of LTB 4 and PAF biosynthesis by AACOCF 3 occurs without concomitant inhibition of AA relea...

Ngày tải lên : 22/02/2014, 07:20

11
524
0

Tài liệu Báo cáo khoa học: Differential effects of Mxi1-SRa and Mxi1-SRb in Myc antagonism ppt

... that affect myc gene expression, Myc protein stability, and Myc bio- logical activity. Normal regulation of Myc activity occurs by mechanisms that inﬂuence the Myc protein per se [7], and also through ... converts Mxi1-SRa into a potent suppressor of Myc ⁄ Ras cotransformation activity (Fig. 3) and also changes the activity of Mxi1-SRa activity on the MYC promoter from activ...

Ngày tải lên : 18/02/2014, 16:20

11
586
0

Tài liệu Báo cáo Y học: The effects of ring-size analogs of the antimicrobial peptide gramicidin S on phospholipid bilayer model membranes and on the growth of Acholeplasma laidlawii B ppt

... phospholipid bilayer/ water partition coefﬁcient, the localization and orientation in the phospholipid bilayer, and the effects of the presence of these peptides on phospholipid organization and ... studies of GS/phospholipid bilayer interactions considerably. Speciﬁcally, we have investigated the strength and nature of the interactions of GS with phospholipid bilayers...

Ngày tải lên : 21/02/2014, 01:21

10
683
0

Tài liệu Báo cáo Y học: The effects of low pH on the properties of protochlorophyllide oxidoreductase and the organization of prolamellar bodies of maize (Zea mays) pot

... main line of evidence for the existence of a POR- phosphatase is the observation by Wiktorsson et al. [9] of an inhibition, by NaF and ATP, of the loss of the long- wavelength form of Chlide ... aggregated form of a phosphorylated (or possibly adenylated) ternary complex of POR, its substrate PChlide, and NADPH. Dephospho- rylation of the photoconverted form of thi...

Ngày tải lên : 22/02/2014, 04:20

11
637
0

Tài liệu Báo cáo Y học: Differential response of neuronal cells to a fusion protein of ciliary neurotrophic factor/soluble CNTF-receptor and leukemia inhibitory factor pot

... differences. Neuronal differentiation of PC12 cells by Hyper-CNTF In a second bioassay, we investigated the potential role of Hyper-CNTF in neuronal cell differentiation. The morphology of rat pheochromocytoma ... 2002 STAT3 and MAPK activation by Hyper-CNTF in transfected BAF/3 cells Downstream signal transduction pathways were analyzed by studying the activation level of JAK...

Ngày tải lên : 22/02/2014, 07:20

9
442
0

Tài liệu Báo cáo khoa học: Structural effects of a dimer interface mutation on catalytic activity of triosephosphate isomerase The role of conserved residues and complementary mutations pptx

... as a standard. Enzyme activity The enzyme activity of TIM was determined by the conver- sion of glyceraldehyde 3-phosphate to dihydroxyacetone phosphate in the presence of TIM and a-glycerolphosphate dehydrogenase ... uncatalyzed rates of enolization of dihydroxyacetone phoshate and of glyceraldehyde 3-phosphate in neutral aqueous solution. The quantitative assessment of t...

Ngày tải lên : 18/02/2014, 11:20

15
635
0

Tài liệu Báo cáo khoa học: Inhibitory effects of nontoxic protein volvatoxin A1 on pore-forming cardiotoxic protein volvatoxin A2 by interaction with amphipathic a-helix doc

... cells. Inhibitory effects of VVA1 on the hemolytic and cytotoxic activity of VVA2 The effects of VVA1 on the hemolytic activity of VVA2 were studied by incubation of human red blood cells (RBCs) with the ... Extending these results, we hypothesized that the inhibition of VVA2 cytotoxic pore formation by VVA1 can only occur at the ideal ratio of 2 : 1 or lower, du...

Ngày tải lên : 19/02/2014, 06:20

12
585
0

Tài liệu Báo cáo khoa học: Antimicrobial effects of H4-(86–100), histogranin and related compounds – possible involvement of DNA gyrase ppt

... devoid of resistance induction, due to the evolutionary stability of histones, and more partic- ularly histone H4 [32]. Interestingly, mutations at codon 751 of the E. coli gyrB gene conferred ... activity, as its replacement by Gly in HNb is most likely responsible for its relatively low potency (LD 50 : 88.3 lgÆmL )1 ). Interestingly, the antimicrobial potency of HNb could be im...

Ngày tải lên : 18/02/2014, 14:20

12
756
0

Tài liệu Báo cáo khoa học: Differential expression of duplicated LDH-A genes during temperature acclimation of weatherﬁsh Misgurnus fossilis Functional consequences for the enzyme ppt

... properties (concentration and, as a consequence, total activity) of an enzyme can be chan- ged by affecting rates of transcription and ⁄ or translation and ⁄ or mRNA and protein degradation. This represents ... origin of highly homologous gene paralogs of skeletal LDH-A in the weatherﬁsh. Many bony ﬁsh (Teleostei) are polyploidy, for exam- ple salmonids (Salmonidae) and c...

Ngày tải lên : 19/02/2014, 02:20

11
662
0

Tài liệu Báo cáo khoa học: Functional effects of deleting the coiled-coil motif in Escherichia coli elongation factor Ts pptx

... translation indirectly by inhibition of mRNA synthesis during amino acid starvation [20–23]. Kirromycin is one in a family of antibiotics that inhibits protein synthesis by binding EF-Tu–GTP and preventing the ... translation in vitro was determined by poly(U)-directed polymerization of phenylalanine in the polymix system, as described by Ehrenberg et al. [42] and modiﬁed...

Ngày tải lên : 21/02/2014, 00:20

12
502
0