... confirmed the predominant nuclear appearance of APE/Ref-1 in these cells As such, these in vitro findings were in concordance with our in vivo observations, concerning the predominant nuclear staining ... original magnification of × 1000 (oil immersion) Since the staining for 8-OHdG as well as for APE/Ref-1 predominantly occurred within the cell nucleus, in line with the location of the DNA and the ... observe neither a clear contrast in visual staining intensities of individuals cells nor any difference in the analysed proportion of positively stained cells for 8-OHdG within the focal versus the...
Ngày tải lên: 12/08/2014, 18:20
... strongly indicate a key role for clathrin function in the entry of DENV into cells In consistent with involvement of clathrin in mediating DENV entry into human hepatocyte cell line in this study, ... clathrin molecules (Additional File 3) Together, these data suggest the involvement of clathrin in the endocytosis of the DENV particles To affirm the role of clathrin-mediated endocytosis in DENV ... show the functional role of microtubule in DENV infection Treatment of cells with nocodazole (disrupts microtubules by binding to b-tubulin and preventing formation of one of the two interchain...
Ngày tải lên: 12/08/2014, 04:21
Tài liệu Báo cáo khoa học: Models and mechanisms of O-O bond activation by cytochrome P450 A critical assessment of the potential role of multiple active intermediates in oxidative catalysis doc
... iron-peroxo intermediate [11] The sum of these ndings points at the involvement of more than one active oxidant in the diverse types of P450-catalyzed substrate processing [1215] The goal of the present ... reect ring opening of an epoxide intermediate at either of its two C-O bonds [219,220] The sum of these ndings strongly invokes the notion of oxygen activation during redox cycling of the diverse ... alterations in the environment can cause drastic changes in the reactivity of the active species [76] Further support in favour of the idea of the involvement of a high-valent iron-oxene in P450...
Ngày tải lên: 19/02/2014, 16:20
Understanding the physiological role of cofactor f 420 in mycobacterium
... for minutes The membrane is then incubated in 100 ml of blocking buffer for 30 minutes under gentle agitation 20 ml of the antibody solution is then poured onto the membrane (after discarding the ... In the case of TB, due the very high contagiousness of the disease, vaccination has historically been administered as a means of protection The currently available form of TB vaccination is the ... experiments in Methanobacterium thermoautotrophicum, it has been shown that the deazaflavin ring of F420 is synthesised from the riboflavin precursor 5-amino-6-ribitylamino-2,4(1H,3H)pyrimidinedione...
Ngày tải lên: 16/10/2015, 15:38
phosphatidylserine exposure in red blood cells: a suggestion for the active role of red blood cells in blood clot formation
... consequences The appearance of PS on the surface of the cell membrane can have major physiological consequences, including increased cell- cell interactions The increased adherence of PS exposing RBCs ... PS in the presence of physiological concentrations of calcium According to the manual instruction, the Kd for the binding of annexin V to PS has been estimated at 5.10-10 M The annexin V binding ... leading to a rapid increase of intracellular Ca2+ The increase of intracellular Ca2+ activates Gardos channel and scramblase The activation of the Gardos channel leads to an efflux of intracellular...
Ngày tải lên: 15/11/2015, 12:54
The Potential Role Of Cyber-Liability Insurance In Data Breach Litigation
... whether the risk of the government intercepting the plaintiffs’ communications utilizing §1881a of the and imminent to constitute an injury in fact under Article III of the Constitution.16 The ... over imminence of the risk of identity theft Some post-Clapper cases deemed an injury as imminent only if the plaintiffs prove the likelihood of the injury as certainly impending17; while others ... an imminent risk of identity theft for the owners of the stolen data.62 The plaintiffs alleged that their injuries included “an increased risk of identity theft….at 9.5 times their pre-theft...
Ngày tải lên: 01/01/2017, 09:08
Báo cáo hóa học: " The role of single N-glycans in proteolytic processing and cell surface transport of the Lassa virus glycoprotein GP-C" ppt
... for instances for influenza hemagglutinin [19] In order to investigate the importance of the individual N-glycosylation sites of Lassa virus GP-C for intracellular trafficking we analysed cell surface ... at the cell surface and displays partial endo H-resistance confirming a modification of its carbohydrate decoration during glycoprotein transport to the cell surface (lane 2) Interestingly, the ... analysing the role of glycosylation of GP in the correct viral context Conclusion Taken together, our study suggest that individual N-linked oligosaccharides of the Lassa virus glycoprotein differ...
Ngày tải lên: 20/06/2014, 01:20
Tài liệu Báo cáo khoa học: The central role of CDE/CHR promoter elements in the regulation of cell cycle-dependent gene transcription pdf
... confirmed by Lin-54 binding to the CHR, cooperating with E2F4 binding to the CDE in EMSAs in vitro [86] ChIP experiments on the Cdc2 gene also provided insights into the association of other cell cycle ... proteins with the promoter E2F4 binding during the cell cycle coincides with the binding of p107 or p130 [61,85] Another E2F site distal to the E2F ⁄ CDE acts as an activating element binding ... In G0, proteins appear to bind to the CDE ⁄ CHR, as monitored by in vivo footprinting According to these early experiments all binding is lost in G2 ⁄ M In contrast, constitutive binding to the...
Ngày tải lên: 16/02/2014, 09:20
Báo cáo khoa học: Essential role of the C-terminus in Melanocarpus albomyces laccase for enzyme production, catalytic properties and structure pdf
... show the critical role of the last amino acids in the C-terminus of MaL Deletion of the four last amino acids strongly reduced the expression of the protein in T reesei and S cerevisiae Furthermore, ... preventing binding of oxygen We analyzed the azide inhibition and determined the inhibition constants for sodium azide, in order to see the effect of the mutation (L559A) on the binding properties in ... hydrogen-bonded to the side chain of His140, which is one of the His residues coordinating the T2 copper in the trinuclear center C-terminal sequencing of the mature MaL showed that the C-terminus is post-translationally...
Ngày tải lên: 16/03/2014, 00:20
Báo cáo y học: "Familial Polycythemia Caused by a Novel Mutation in the Beta Globin Gene: Essential Role of P50 in Evaluation of Familial Polycythemi" potx
... this interface All these substitutions can affect the cooperative nature of oxygen binding with heme, and in turn, can change the affinity of Hb for oxygen The majority of mutations affecting ... BPG) level in the red cell and temperature, and globin structure [13] Affinity of Hb with oxygen is expressed as the P50, which is the partial pressure of oxygen in blood at which 50% of the Hb is ... in increased red blood cell mass and polycythemia At an elevated level of increased red blood cell mass (which depends upon the oxygen affinity of a given variant) adequate oxygenation of the...
Ngày tải lên: 08/08/2014, 16:23
Báo cáo khoa học: " Expression of cell surface receptors and oxidative metabolism modulation in the clinical continuum of sepsis" ppt
... with endothelial surfaces triggering a transient activation signal that regulates the adhesive activity of CD11/CD18 [18] Firm adhesion involves the interaction of leukocyte integrins of the beta ... with regard to the production of inflammatory cytokines [25] In the present study, we evaluated the expression of TLR2, TLR4, CD11b, CD11c and CD66b on the cell surface of neutrophils in patients ... neutrophil adaptation across the continuum of sepsis This is a single time point study where the dynamic of sepsis is pointed out by the inclusion of patients at different stages of the disease; sepsis,...
Ngày tải lên: 13/08/2014, 10:20
THE REGULATORY ROLE OF MATRIX METALLOPROTEINASES IN T CELL ACTIVATION
... pro15 form These enzymes are in an inactive state due to the thiol (SH-) group of the cysteine residue within the pro-domain interacting with the Zn2+ ion in the catalytic domain Disruption of this ... domain situated in the hinge region which is ~75 amino acid residues in length (23-26) It is of interest to point out that in the gelatinases, collagen binding is conferred by the fibronectin ... IL-10 Interleukin-10 IL-1β Interleukin-1 beta IL-12 Interleukin-12 IL-13 Interleukin-13 xxii IL-21 Interleukin-21 IL-22 Interleukin-22 IL-23 Interleukin-23 IFN-γ Interferon gamma ITK IL-2 inducible...
Ngày tải lên: 24/08/2014, 11:37
the role of wasp family members in dictyostelium discoideum cell migration
... by the inclusion of profilin and αactinin The role of these proteins in promoting actin nucleation and maintaining actin treadmilling is summarised in figure 1.1c How these factors and many others ... on the role of actin in the cytoskeleton 1.2.2 Actin monomer binding proteins Actin that has hydrolysed its ATP remains bound to the resulting ADP and inorganic phosphate with the later being ... depolymerised ADP-bound G-actin is regulated by actin monomer binding proteins Profilins are actin monomer binding proteins that bind G-actin and promote the release of ADP in exchange for ATP (Goldschmidt-Clermont...
Ngày tải lên: 22/12/2014, 18:48
Genetic analysis of the role of ARP2 3 complex in border cell migration in drosophila melanogaster
... Function of chemokines is to induce cell migration Cells will move toward the direction of increment of continuous chemokine concentration gradient In other words, cells migrate toward the source of ... which is often the first step in cell migration During cell locomotion, myosin interacts with actin filaments to pull the rear of cell forward 1.6 Regulation of actin filament remodeling Since various ... prevent the binding of capping factors to the barbed end (Kovar et al 2003) FH1 contains polyproline sequences and interacts with profilin (Chang et al 1997) Since profilin binds to actin monomer,...
Ngày tải lên: 10/09/2015, 15:48
Elucidation of the physiologic role of TRIP br2 in cell cycle regulation and cancer pathogenesis
... 2000) CDK protein levels remain stable during the cell cycle, in sharp contrast to their activating proteins, the cyclins The oscillatory expression of most cyclin proteins during cell cycle progression ... (TFIIH) Following the phosphorylation of cyclin H in the vicinity of its functionally unique aminoterminal (N-terminal) and carboxyl-terminal (C-terminal) α-helical domains, the ability of TFIIH to ... chromatin resulting in either gene activation or repression For instance, the appearance of histone acetyltransferases, including cAMP-responsive element binding (CREB) protein-binding protein (CBP),...
Ngày tải lên: 13/09/2015, 20:18
The role of TRIP br proteins in the regulation of mammalian gene transcription and cell cycle progression
... Features PHD zinc finger protein PHD zinc finger protein Composite PHD zinc fingerbromodomain proteins PHD zinc finger protein Bromodomain protein PHD zinc finger proteins PHD zinc finger protein Composite ... protein function in cell cycle regulation The summation of the above observations and findings has led to the synthesis of a hypothetical model to explain the dual role of hTRIP-Br1 in the regulation ... with the development of Rubinstein-Taybi Syndrome (RTS) 14 The prevalence of disease-causing mutations involving the PHD zinc fingers implicates a basic and essential in vivo role of this motif in...
Ngày tải lên: 16/09/2015, 17:12
The regulatory role of mixed lineage kinase 4 beta in MAPK signaling and ovarian cancer cell invasion
... consist of the following structural domains: the N-terminal signal peptide domain, the propeptide region, the catalytic domain containing the highly conserved zinc binding region, and the C-terminus ... a role for MLK3 in intestinal epithelial cell migration (Kovalenko, et al., 2012) This was demonstrated in the epithelial intestinal Caco-2 cells, whereby, treating the cells with the MLK inhibitors, ... activation of JNK signaling (Gallo and Johnson, 2002) In the absence of a stimulant, the N-terminal SH3 domain of MLK3 binds to a single proline residue that lies between the LZ and the CRIB domain,...
Ngày tải lên: 06/11/2016, 19:07
Tài liệu Role of diffusion-weighted imaging in the diagnosis of gynecological diseases pdf
... satisfactory in the evaluation of nodal status in this patient group Since the highly cellular tissue in reactive lymph nodes may also show increased intensity, the role of DWI and ADC in distinguishing ... tissue in the uterine cervix and endometrium In the uterine myometrium, the ADC value may play a limited role due to the large overlap between sarcomas and benign leiomyomas The role of DWI for the ... 44-year-old woman with stage Ib squamous cell carcinoma of the uterine cervix a Axial T2-WI of the uterus shows cervical cancer (arrow) involving the anterior lip of the cervix b Dynamic contrast-enhanced...
Ngày tải lên: 13/02/2014, 06:20
Tài liệu SICK WATER? THE CENTRAL ROLE OF WASTEWATER MANAGEMENT IN SUSTAINABLE DEVELOPMENT pdf
... Figure 19 in the timing and intensity of rainfall, or the period of time without rain, as well as affecting the quality of water in rivers and lakes through changes in the timing and volume of peak ... cost-effective way of assessing health risks; • the identification of all risk points along the chain of events from the origin of the wastewater to the consumption of the produce (e.g the farm-to-fork ... Hoepner,2008) There is scope to improve the sustainability of the desalination process The process results in the discharge of a concentrated brine into the receiving waters Temperature and salinity...
Ngày tải lên: 17/02/2014, 10:20
Tài liệu Báo cáo khoa học: Mitochondrial targeting of intact CYP2B1 and CYP2E1 and N-terminal truncated CYP1A1 proteins in Saccharomyces cerevisiae ) role of protein kinase A in the mitochondrial targeting of CYP2E1 pdf
... mitochondria-targeting signal in the yeast system Mitochondrial localization of intact CYP2E1 in yeast cells Because of the existing ambiguity in the literature on the nature and extent of CYP2E1 import into ... 9A), confirming the role of endogenous FDX + FDXR in supporting the activity To further confirm the role of endogenous FDX + FDXR in supporting the catalytic activity, we transformed the FDX (Yah1)- ... similar in all three cell lines tested CYP2E1 contained a single PKA target site at Ser129, which was shown to be important in mitochondrial targeting of the protein in COS cells In the second...
Ngày tải lên: 18/02/2014, 16:20