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Báo cáo khoa học: Recombinant derivatives of the human high-mobility group protein HMGB2 mediate efficient nonviral gene delivery pptx

Báo cáo khoa học: Recombinant derivatives of the human high-mobility group protein HMGB2 mediate efficient nonviral gene delivery pptx

Báo cáo khoa học: Recombinant derivatives of the human high-mobility group protein HMGB2 mediate efficient nonviral gene delivery pptx

... 4221–4236 ª 2005 FEBS Recombinant derivatives of the human high-mobility group protein HMGB2 mediate efficient nonviral gene delivery Arjen Sloots and Winfried S. WelsChemotherapeutisches Forschungsinstitut, ... wehave generated recombinant derivatives of the human high-mobility group (HMG) protein HMGB2 and investigated their potential as novel protein- based transfection reagents. A truncated form of HMGB2 ... for the Myc tag included in the molecule, further confirming the identity of the recombinant protein (Fig. 1B). Recombinant HMGB2 186binds to plasmid DNAand cell surfacesBinding of HMGB2 186protein...
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Báo cáo khoa học: Biochemical properties of the human guanylate binding protein 5 and a tumor-specific truncated splice variant Mark Wehner and Christian Herrmann doc

Báo cáo khoa học: Biochemical properties of the human guanylate binding protein 5 and a tumor-specific truncated splice variant Mark Wehner and Christian Herrmann doc

... likely due to an elongatedshape of the protein. The same behavior is observed in the presence of GDPÆAlFx. Because of the unexpectedobservation of a monomeric protein species with bothGDP and ... account). The size of the protein complex is onlyslightly increased when nucleotide-free or in the presence of GTP. As with hGBP5ta, the complex isincreased to the size of a tetramer after binding of GppNHp, ... for the lack of GMP formation(see Fig. S2). The similar hydrolytic activities of the a ⁄ b and C-terminally truncated forms of hGBP5 are incontrast to that of the analogous deletion mutant of hGBP1...
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Báo cáo khoa học: Crystal structures of the human SUMO-2 protein at 1.6 A and 1.2 A resolution ppt

Báo cáo khoa học: Crystal structures of the human SUMO-2 protein at 1.6 A and 1.2 A resolution ppt

... room temperature in the presence of Factor Xa (Novagen). This step removes the His10tag togenerate the truncated SUMO-2 protein (9–93 amino acids). The protein solution was then purified a second ... residues 45–58 in the former model and 40 , 49 and 55–58 in the latter model of SUMO-2 and the equivalents of ubiquitin. Although the sequences have only 18% identity, the protein folds of SUMO-2 and ... with the Gly93 of another. The crystal structures of diubiquitin and tetraubiquitinshowed some alternatives of the quaternary c onformations of ubiquitin polymer for e fficient r ecognition by the...
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Báo cáo khoa học: Novel repressor of the human FMR1 gene ) identification ¨ of p56 human (GCC)n-binding protein as a Kruppel-like transcription factor ZF5 ppt

Báo cáo khoa học: Novel repressor of the human FMR1 gene ) identification ¨ of p56 human (GCC)n-binding protein as a Kruppel-like transcription factor ZF5 ppt

... (1994)Identification of a GC element in the promotor of the murine L32 ribosomal protein L32 gene and the 3¢-ter-minal region of the human apolipoprotein A-I gene, capable of binding with murine and human ... GCC-elements of the rpL32 promoter and the 5¢-UTR of the human FMR1 gene. We further identify p56 as the Kru¨ppel-like transcription factor ZF5. We show, for the firsttime, that recombinant ... to the protein of interest. In the case of the rpL32 fragmentor the (GCC)9sequence, there are several repeatedZF5-binding sites within a single oligonucleotide.Therefore, the affinity of...
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Báo cáo khóa học: Structural characterization of the human Nogo-A functional domains Solution structure of Nogo-40, a Nogo-66 receptor antagonist enhancing injured spinal cord regeneration ppt

Báo cáo khóa học: Structural characterization of the human Nogo-A functional domains Solution structure of Nogo-40, a Nogo-66 receptor antagonist enhancing injured spinal cord regeneration ppt

... National University of Singapore, Singapore The recent discovery of the Nogo family of myelin inhibitorsand the Nogo-66 receptor opens up a very promising avenuefor the development of therapeutic agents ... Zn2+.Furthermore, the d etermination of the Nogo-40 solutionstructure offers a starting point for further understanding the interaction between NgR and Nogo-40, and forfuture designs of molecules ... functional studies of Nog o-A.On the other hand, the recent identification of Nogo-40as a potent NgR antagonist suggests a promising startingpoint for the design of potential therapeutic agents...
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Báo cáo khoa học: Biochemical analysis of the human EVL domains in homologous recombination doc

Báo cáo khoa học: Biochemical analysis of the human EVL domains in homologous recombination doc

... clarify the contributions of these proteins in the HRR pathway.During the cytoplasmic actin-remodeling process, the ENA ⁄ VASP family proteins bind to both the barbed end and sides of actin ... Uppsala,Sweden) per milligram of the protein. On the other hand, the His6-tagged EVL(222–418) fragment bound to hydroxy-apatite resin. Therefore, the resin containing the His6-taggedEVL(222–418) ... incubatedwith RAD51. The RAD51 protein bound to the His6-tagged EVL, EVL(1–221) or EVL(222–418) protein was captured by the Ni2+–nitrilotriace-tic acid agarose beads. The proteins bound to the Ni2+–nitrilotriacetic...
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Báo cáo khoa học: Biochemical analysis of the human DMC1-I37N polymorphism potx

Báo cáo khoa học: Biochemical analysis of the human DMC1-I37N polymorphism potx

... that the N-terminal domain of the DMC1 protein functions aspart of the DNA-binding path.Materials and methodsPurification of the human DMC1 protein and the DMC1-I37N variant The human DMC1 protein ... that the DMC1-I37N variant was thermally unstable, com-pared with the conventional DMC1 protein (Fig. 1B).We then tested the ATPase activity of the DMC1-I37N variant. The human DMC1 protein efficientlyhydrolyzes ... CaCl2dsDNANCJMssDNAFig. 5. The strand-exchange assay in the presence of variousamounts of the DMC1 protein and the DMC1-I37N variant. The indicated amounts of the DMC1 and DMC1-I37N proteins (total6...
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Báo cáo khoa học: Functional domains of the human epididymal protease inhibitor, eppin docx

Báo cáo khoa học: Functional domains of the human epididymal protease inhibitor, eppin docx

... Interestingly, the human eppin gene is located on chromosome 20 in a cluster of 13other WAP domain containing gene sequences [13,16].Some of the proteins expressed from these genes alsohave ... of the bacteria with the proteins, no reduction of the XTTwas observed (data not shown). This suggests that the bacteria were now dead and also that the reduction of XTT was due to enzymes of ... (i.e. noadded proteins) carried out in parallel. The SDs of the colony countsfor the control samples were no greater than 16% of their means.Table 1. Deconvolution of CD spectra of the three fragments.Spectra...
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Báo cáo khoa học: Mimicking phosphorylation of the small heat-shock protein aB-crystallin recruits the F-box protein FBX4 to nuclear SC35 speckles docx

Báo cáo khoa học: Mimicking phosphorylation of the small heat-shock protein aB-crystallin recruits the F-box protein FBX4 to nuclear SC35 speckles docx

... because the localization of Sm proteins at SC35 speckles is more RNA-dependentthan the Sm proteins that are diffusely distributed through-out the nucleoplasm. No Sm protein could be detected intheSC35specklesafterRNasetreatment(Fig.3B,eandf),as ... protein. The additional recruitment of FBX4 maystimulate the ubiquitination of the speckle protein. AcknowledgementsWethankDrG.Eguchiforhisgenerousgiftoftheanti-(aB-crystallin)monoclonal antibody ... interact with the F-box protein FBX4 [25]. FBX4is an adaptor molecule of the ubiquitin -protein isopeptideligase SKP1/CUL1/F-box (SCF). The mutant aB-crystal-lins translocate FBX4 t o the de tergent-insoluble...
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Báo cáo khoa học: Constitutive expression of the human peroxiredoxin V gene contributes to protection of the genome from oxidative DNA lesions and to suppression of transcription of noncoding DNA pdf

Báo cáo khoa học: Constitutive expression of the human peroxiredoxin V gene contributes to protection of the genome from oxidative DNA lesions and to suppression of transcription of noncoding DNA pdf

... expression of the human PRDX5 gene in situ was notstimulated by the oxidative agent menadione. Silencing of the NRF2 gene in the absence of oxidative stress by specific siRNA did not decreasePRDX5 protein ... 6C).Therefore, knockdown of the PRDX5 gene stimulatedtranscription of some families of human satellite DNA,which may be caused by direct involvement of PRDX5in silencing of the transcription of ... RNA (siRNA)-mediated silencing of the human PRDX5 gene, we also constructed stable clones of the cultured airway epithelial cell line A549, which hassignificant down-regulation of this gene clone,...
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