Báo cáo khoa học: " Dispersal and flight behaviour of lps sexdentatus (Coleoptera: Scolytidae) in pine forest" pptx

... Scots pine beetle lps sexdentatus Boern (Coleoptera: Scolytidae). J Appl Entomol 104, 190-204 Koponen M (1980) Distribution of lps amitinus (Eichoff) (Coleoptera: Scolytidae) in ... orientation of the flight direction when the speed of the wind rose > 3 m/s. This value is more important Original article Dispersal and flight beh...

Ngày tải lên: 08/08/2014, 23:22

... a-heli- cal LID domain, situated in the C-terminal moiety, and the NMP-binding (NMP bind ) domain move in an induced-fit mechanism, closing upon binding of the phosphate donor and acceptor nucleotides, ... structures of CMP and UMP, and interactions between the cyto- sine moiety of nucleotide and various side chains of wild-type CMP kinase. (Upper) Chemical differences be...

Ngày tải lên: 16/03/2014, 10:20

... histopathological lesions in the seminiferous tubules. There were thickening and multiple layering of the tubular endothelium, and the formation of many multinucleated giant cells in seminiferous tubules. ... Thickening and multiple layering of the tubular endothelium (arrow), and the formation of many multinucleated gian t cells (arrow heads) in seminiferous tubules. H...

Ngày tải lên: 07/08/2014, 18:21

... any extent of immunostaining in se ctions and further graded into four groups: + : < 5% of tumor cells stained; ++ : 5-25% of tumor cells stained; +++ : > 25-50% of tumor cells stained; ++++ ... only. Cases were included according to the following inclusion criteria: having archived formalin-fixed, paraf- fin-embedded specimens available; having complete clinicopathological...

Ngày tải lên: 10/08/2014, 10:20

... studies of the structure and binding sites of enzymes. 8. Inhibitor binding to ribonucleases. J Mol Biol 45, 491–511. 33 Ui N (1971) Isoelectric points and conformation of proteins. I. Effect of urea ... similarity in the K m values is attributable to the uracil moiety binding in the same fashion [38], which could trigger the initial binding of both substrates. In UpG, the...

Ngày tải lên: 14/02/2014, 22:20

... The transfer of phosphate can lead to phosphorylation of inosine, guanosine and a number of their analogues [2]. There- fore, in addition to being involved in regulation of purine intracellular ... sites 1 and 2 and involved in bind- ing of adenylic nucleotides and BPG. Our results partially confirm the molecular model- ling, suggesting that effector site 1 is the bindi...

Ngày tải lên: 15/02/2014, 01:20

... activity of PRTFDC1 towards hypoxanthine and guanine is only 0.26% and 0.09%, respectively, of the activity of HPRT, the role of the PRTFDC1 in purine metabolism remains unclear and it is uncertain ... and hypoxanthine. (B) HPRT and hypoxanthine. (C) PRTFDC1 and guanine. (D) HPRT and guanine. Table 2. K m and V max values for Hx and G in the presence of 1 mM PR...

Ngày tải lên: 15/02/2014, 01:20

... accessing hydantoinases involved screening and iso- lating naturally occurring enzymes possessing hydan- toin-hydrolyzing activity from microbes, and using them to produce optically pure amino acids ... DNA of the corresponding organisms. The PCR fragments of the coding regions of HYDs were inserted in- frame into pET28a, resulting in HYDs that were His-tagged at the N-terminus....

Ngày tải lên: 18/02/2014, 08:20

... activation in place of the flavoprotein, and then redox cycles within NOS; and (d) heme–NO binding is an intrinsic feature of cataly- sis that constrains the rate of heme reduction by the flavoprotein ... Role of the C-terminal tyrosine of ferredoxin–nicotinamide adenine dinucleo- tide phosphate reductase in the electron transfer processes with its protein partners ferredoxin...

Ngày tải lên: 18/02/2014, 11:20

... Comparison of rates and kinetic isotope effects using PEG-modified variants and glycoforms of glucose oxidase: the relationship of modification of the protein envelope to C–H activation and tunneling. ... the role of dynamics in interprotein [65–68] and intraprotein [69] ET reactions and protein rearrange- ment after carbon monoxide dissociation from myoglo- bin [64]. In...

Ngày tải lên: 18/02/2014, 11:20