router b discards the hdlc header and

Báo cáo khoa học: Recruitment of transcription complexes to the b-globin locus control region and transcription of hypersensitive site 3 prior to erythroid differentiation of murine embryonic stem cells docx

Ngày tải lên : 07/03/2014, 12:20

... leukemia inhibitory factor (LIF) These cells express the Rex-1 and b- actin genes but not the embryonic and adult globin genes (Fig 2) Upon differentiation the embryonic- and adult-speciﬁc b- globin genes ... transcription by nuclear run-on in the LCR and the bmajor-globin gene in MEL cells The data show that HS2 and the bmajor-globin gene are transcribed while a region upstream of HS5 is not Having established ... towards the HS3 core enhancer The RNA was isolated and reverse transcribed using a primer speciﬁc for the bottom strand (3¢)5¢) or for the top strand (5¢)3¢) (B) Transcription in the human b- globin...

10
422
0

Báo cáo khóa học: Disruption of the interaction between the Rieske iron–sulfur protein and cytochrome b in the yeast bc1 complex owing to a human disease-associated mutation within cytochrome b potx

Ngày tải lên : 07/03/2014, 15:20

... ISP and cytochrome b, and modiﬁed the Qo-binding site This was supported by the observed decrease in sensitivity to stigmatellin in the mutant enzyme It is probable that G167E affects the bc1 ... of the complex The mutation could also affect the binding of the ISP to the bc1 complex and distort the Qo site Our data showed that, in the mutant, the bc1 activity was severely decreased The ... compensatory, because, in the revertants, the bc1 activity remained low and the instability of the complex persisted, as observed for the primary mutant In order to monitor the effect of the secondary...

7
498
0

Báo cáo khoa học: Injection of poly(b-L-malate) into the plasmodium of Physarum polycephalum shortens the cell cycle and increases the growth rate pot

Ngày tải lên : 16/03/2014, 18:20

... ± 1 5b 350 ± 25c 63 ± 1 4b 350 ± 25c 460 ± 9 0b 1000 ± 6 0b 47 ± 1 5b Not detectableb Not detectableb 60 ± 15c High M3CVIII 200 ± 7 5b 450 ± 45c 189 ± 2 0b 340 ± 28c 550 ± 6 0b 1730 ± 15 0b 18 ± 3b 270 ... for the yellow strain M3CVII (data not shown) Thus, the absolute increases in PMLA levels in the extracts were the same for the white and the yellow strains Nevertheless, because the level in the ... plasmodia before the injection (because there is much less PMLA in the cytoplasm of white plasmodia; Table 1) By the same token, the equal (between-strains) effects on the cell cycle duration (Fig 2B, D)...

7
325
0

Báo cáo khoa học: Detection and characterization of a novel extracellular fungal enzyme that catalyzes the speciﬁc and hydrolytic cleavage of lignin guaiacylglycerol b-aryl ether linkages pdf

Ngày tải lên : 17/03/2014, 03:20

... GOG (structure II) by a benzyl group (Fig 7) The b- aryl ether cleavage enzyme could not cleave the b- aryl ether linkages of GOUbz (III) and GOGbz (IV) In addition, the b- aryl ether cleavage enzyme ... Japan) and incubated for 12 h at 28 °C After the incubation, the mixture was analysed as described above Results and discussion In our previous study, we characterized the b- etherase and the nucleotide ... enzymes able to cleave b- aryl ether linkages One isolate, 2BW-1, generated the strongest ﬂuorescence and therefore, it appeared that 2BW-1 cleaved the b- aryl ether linkage eﬃciently 2BW-1 also...

10
670
0

Báo cáo khoa học: Nuclear factor kappa B and tumor necrosis factor-alpha modulation of transcription of the mouse testis- and pre-implantation development-speciﬁc Rnf33⁄Trim60 gene pot

Ngày tải lên : 29/03/2014, 00:20

... intronic jB sequence modulated by the NF-jB subunits p65 and p50, and also by TNF-a Although p65 is probably expressed in the oocyte and the pre-implantation embryo, it remains to be shown if the TNF-a ... the other hand, p50 ⁄ Nf-jb1 EST sequences are found in the oocyte and in the testis but not in any of the pre-implantation embryos If NF-jB is experimentally shown in subsequent studies to be ... targeted by the abundantly expressed NF-jB [13–15] Involvement of the NF-jB in gene regulation in the testis has also been described [16–20] Among the ﬁve NF-jB proteins, p50 ⁄ NFjB1 and p65 ⁄...

14
381
0

Báo cáo khoa học: The ubiquitin-like protein monoclonal nonspeciﬁc suppressor factor b conjugates to endophilin II and regulates phagocytosis potx

Ngày tải lên : 29/03/2014, 22:21

... 6361 MNSFb conjugates to endophilin II M Nakamura and S Shimosaki block nonspecific binding sites Subsequently, the membranes were incubated with anti-MNSFb rabbit IgG in the blocking buffer, after ... performed immunoblotting of samples purified by MNSFb antibody affinity chromaTable Isopeptide bonds between the C-terminal glycine of MNSFb and the lysine of endophilin II The 62 kDa MNSFb adduct was ... blot of the macrophages (Fig 4B, lanes and 2) Interestingly, heterogeneous bands, including the 62 kDa band (MNSFb–endophilin II), were reproducibly observed in liver lysates but not in brain lysates...

9
359
0

Báo cáo khoa học: Expression level and agonist-binding affect the turnover, ubiquitination and complex formation of peroxisome proliferator activated receptor b pptx

Ngày tải lên : 30/03/2014, 03:20

... PPARb (Figs 1B and 2C) Finally, we analyzed steady-state 3xFLAG-PPARb levels in 3Fb1 cells by immunoblotting either untreated, treated with the PPARb agonists GW501516 or L165 041 and in combination ... immunoblots with either the PPARb-specific antibody (upper panel) or the M2 antibody (lower panel) This experiment clearly showed that FLAG-PPARb was precipitated by the PPARb-specific antibody ... Regulation of PPARb turnover specific antibody because none of the available PPARb-specific antibodies are suitable for a quantifiable detection of PPARb at low expression levels In these experiments,...

9
350
0

Báo cáo khoa học: Interaction with model membranes and pore formation by human steﬁn B – studying the native and preﬁbrillar states docx

Ngày tải lên : 30/03/2014, 04:20

... with the membrane and is located within the lumen of the pores once they are formed The mutant G4R showed the best association with the model monolayers and bilayers under study It showed the ... to be stable (i.e once they have been inserted, they remain open) (Fig 4A) Two lower conductance states could also be observed in addition to the stable pores They are less stable (levels and ... way to the other two variants However, the slope of the curves in Figs 1B, D are distinctively different for the StB-wt and other two variants, indicating that the mode of interaction with the monolayer...

12
315
0

d. Hadn''''t it been b 41. The talks in the classroom, in the corridor and in the schoolyard do not pdf

Ngày tải lên : 18/06/2014, 17:20

... North and the South b East and the West c United States and Great Britain d colored and the white >a 34 Some improvements in the bus service in this town a have recently been made b has recently ... been lost >c 42 Is this hotel you could find? a best b the best c better d the better b 43 “Would you like to go to the cinema?” “No, thank you, I would stay home.” a better b like c rather ... onto the moon a was stepping b stepped c has stepped d was step b 49 Let’s after work and thrash this out between us a come together b gather together c get together d meet together > b 50 The...

43
491
0

Báo cáo sinh học: " Hepatitis C (HCV), hepatitis B (HBV), the human immunodeficiency viruses (HIV), and other viruses that replicate via RNA intermediaries," pdf

Ngày tải lên : 18/06/2014, 22:20

... antigenic and structural diversity be controlled and, in turn, that means the two critical RNApol attributes, fidelity and processivity, be dynamically modifiable, and controllable These linked ... fall by 102–3 between time A and B or C, (Figure 2) Problem 2: Mutation rate The stability of RNA viral quasispecies poses a major problem: During viral replication the copied genome may either ... those at time (B or C) by 102–3 [V(a)] ≈ [V (b or c)]• 102–3, and Ic (b or c)= Ve (b or c) then immune clearance pressures at time A exceed those at time (B or C) by102–3 Ic(a) >Ic (b or c)• 102–...

14
329
0

báo cáo hóa học:" Substitutions in the Reverse Transcriptase and Protease Genes of HIV-1 Subtype B in Untreated Individuals and Patients Treated With Antiretroviral Drugs" potx

Ngày tải lên : 20/06/2014, 08:20

... activity of APOBEC3G is inhibited by the Vif protein.[5,7,8] In the absence of Vif, the synthesis of the negative strand of DNA can result in the insertion of a uracil as a result of the deamination ... employed to determine the subtypes of these viral isolates in concert with the Stanford database http://hivdb.stanford.edu/ Nucleotide genomic diversity in the RT and PR regions of the various viral ... transcriptase inhibitors (NRTIs) (Figure 2); the distribution of treatments in these individuals is described in the Table The mean of GA transitions was 8.1 (95% CI, 7.39), which was similar to the incidence...

6
286
0

Báo cáo y học: "No evidence for an association between the -871 T/C promoter polymorphism in the B-cell-activating factor gene and primary Sjögren''''s syndrome" pptx

Ngày tải lên : 09/08/2014, 07:20

... testing The association between BAFF polymorphism and BAFF protein or mRNA level was analyzed using the Mann–Whitney U test The association between BAFF polymorphism and serum gammaglobulin, IgG, and ... increased BAFF mRNA level in blood monocytes We therefore investigated the association between BAFF -871 T/C polymorphism and BAFF expression, and focused first on the correlation between BAFF polymorphism ... influence BAFF level Surprisingly, no correlation was observed between BAFF polymorphism and BAFF mRNA levels in patients with pSS The absence of concordance between BAFF protein and mRNA regarding the...

5
401
0

Báo cáo y học: "Rituximab therapy reduces activated B cells in both the peripheral blood and bone marrow of patients with rheumatoid arthritis: depletion of memory B cells correlates with clinical response" potx

Ngày tải lên : 09/08/2014, 14:22

... between depletion of B cells in PB or in BM and the clinical response to rituximab Taken together, these results suggest that the BM B cells are more resistant than PB B cells to antiCD20 mAb ... rituximab on B cells in rheumatoid arthritis peripheral blood and bone marrow Rituximab preferentially depletes B cells in peripheral blood marrow (PB) and reduces activated B cells in the PB and the ... 1c) Rituximab therefore effectively and preferentially depletes activated HLA-DR+ B cells both in the PB and the BM of RA patients Favorable response to rituximab therapy preceded by a decrease...

8
376
0

Báo cáo y học: " b-Lapachone induces heart morphogenetic and functional defects by promoting the death of erythrocytes and the endocardium in zebrafish embryo" docx

Ngày tải lên : 10/08/2014, 10:20

... or blapachone for h and then fixed at 30 and 48 hpf to analyze the presence of erythrocytes by whole-mount in situ hybridization using hbae1 (hemoglobin a embryonic 1) as a probe and hemoglobin ... analyses further confirmed the presence of very low expression levels of both hbae1 and hbbe1 (hemoglobin b embryonic 1) in b- lapachonetreated 48-hpf embryos (data not shown) Since proerythroblasts ... and 48 hpf for either hbae1 hybridization or odianisidine (ODA) staining B: DMSO- and b- lapachone-treated embryos were incubated with CM-H2DCFDA for h at 29 hpf, and both brightfield (a, c) and...

13
371
0

Báo cáo y học: " Differences in the ability to suppress interferon b production between allele A and allele B NS1 proteins from H10 influenza A viruses" pps

Ngày tải lên : 11/08/2014, 21:21

... membrane (GE Healthcare, Uppsala, Sweden) The membranes were incubated in blocking buffer (PBS, 2% (wt/vol) bovine serum albumin) at room temperature for one hour on slow agitation, the NS 1and bactin ... investigated the level of endogenous IFN -b mRNA and the amount of IFN -b secreted in the cell supernatant It has been observed that the NS1 protein of “mink/84” but not “chicken/49” strongly suppressed the ... hour The strips were again washed before the addition of the tetramethyl benzidine (TMB) substrate solution, after which the strips were incubated for 15 at room temperature in the dark The reaction...

8
348
0

báo cáo khoa học: " A linkage map for the B-genome of Arachis (Fabaceae) and its synteny to the A-genome" doc

Ngày tải lên : 12/08/2014, 03:20

... Group B2 was syntenic to the upper region of LG A2 with five collinear loci, and the group B1 0 in the lower region Inversions were also detected in the LGs B1 /A1 and B6 /A6 Linkage groups B6 and B7 ... < 0.05 were identified by # (Figure 1) Groups B6 and B9 had no distorted markers B3 , B4 , B5 , B8 , and B9 ) showed direct correspondences with seven groups of the AA map Of these, five had all common ... two LG of the AA map, B6 with A6 and A10, and B7 with A7 and A8 Synteny analysis A total of 51 common markers mapped in the AA and BB genome diploid maps spanned the 10 linkage groups of both maps...

10
399
0

Báo cáo y học: "Could the expression of CD86 and FcγRIIB on B cells be functionally related and involved in driving rheumatoid arthritis" pps

Ngày tải lên : 12/08/2014, 14:22

... MH, Nabbe KC, Coenen MJ, Welsing P, Bonvini E, Koenig S, van den Berg WB, Barrera P, van Riel PL: The functional variant of the inhibitory Fcgamma receptor IIb (CD3 2B) is associated with the rate ... by Catalán and colleagues did not show any stringent relationship between B cell activation measured by CD86 expression and levels of FcγRIIB, indicating that the relationship between FcγRIIB ... inhibitory FcγRIIB and the modulation of B cell activity and humoral tolerance has also been translated into humans Expression of FcγRIIB was found to be considerably decreased in memory B cells from...

2
227
0

Báo cáo y học: "Effects of ischemic pre- and postconditioning on HIF-1a, VEGF and TGF-b expression after warm ischemia and reperfusion in the rat liver" ppsx

Ngày tải lên : 13/08/2014, 13:20

... consisting of an a and b- subunit The b- subunit is expressed ubiquitously in most cells, whereas expression of the a-subunit is controlled by cellular oxygen tension Under normal conditions the HIF-1a ... dependent system By contrast, hypoxia inactivates the degradation causing stabilization of the HIF-1a protein, which then translocate to the nucleus and forms dimers with the b- subunit [17] The active ... or without IPC and IPO, affects the expression of HIF-1a and the target genes VEGF and TGF -b1 , in rodent liver Methods The surgical and experimental protocols were approved by the Danish Animal...

6
328
0

Báo cáo y học: "Systems biology-defined NF-κB regulons, interacting signal pathways and networks are implicated in the malignant phenotype of head and neck cancer cell lines differing in p53 status" pps

Ngày tải lên : 14/08/2014, 08:20

... R53.15 Binding activityprevious page) of RELA and NF B1 Figure (see and motif logo Binding activity and motif logo of RELA and NF B1 (a) The basal and inducible binding activity of RELA or NF B1 ... subunits, RELA, NF B1 or cREL There were 124 genes predicted to be under the regulation of all three NF- B subunits; 328 genes by RELA; 410 genes by NF B1 ; and 306 genes by cREL (Figure 2b and Additional ... significantly by knocking down RELA than NF B1 The binding activities of RELA and NF B1 in UM-SCC cells The binding activities of individual subunits of NF- B, such as RELA and NF B1 , to synthetic oligonucleotides...

22
434
0