• Our finding that one enzyme acts both as

  2021-04-02

  

  Our finding that one enzyme acts both as a primase and a DNAP poses evolutionary and mechanistic questions. In particular, why do cellular organisms require two enzymes to fulfill de novo DNA synthesis? The inability of cellular replicases to perform as primases might be dictated by the challenges a

• br Materials and method br Results and discussion We carried

  2021-04-02

  

  Materials and method Results and discussion We carried out DNA ligation using free and immobilized T4 DNA ligase in the absence of a magnetic field at 16°C, where the enzyme concentration (final concentration after mixing the solutions for the reaction) in both cases was 0.40μg/mL, and found t

• br Type II NAD P

  2021-04-02

  

  Type II NAD(P)H Dehydrogenases in Fungi Fermentative YeastSaccharomyces cerevisiaeBecause S. cerevisiae is a facultative U 46619 yeast capable of meeting its energy requirements with ATP generated by fermentation, only relatively few mitochondrial proteins are essential for cell viability. The m

• Consistent with previous simulations on the DFG

  2021-04-02

  

  Consistent with previous simulations on the DFG-Asp-out/-in interconversion of Abl kinase, we only observe the DFG flip with protonated Asp747 (Shan et al., 2009). We showed previously that the pKa for the DFG-Asp in Abl is elevated at 6.5. Further “constant pH” simulations whereby protonation event

• Confirmation of the presence of

  2021-04-02

  

  Confirmation of the presence of H+-PPase genes in the genomes of the different protists tested was obtained by Southern blot analyses using the PCR-amplified DNA fragments as probes (Fig. 3). In the trypanosomatids L. major and T. cruzi and the euglenoid A. longa, a single band appeared in the filte

• To overcome problems with the biochemical reconstitution

  2021-04-02

  

  To overcome problems with the biochemical reconstitution of these heterodimeric cytokines fusion strategies linking both subunits together have been proposed inspired by the “hyper-IL-6” [28]. Much like fusing a protein to a solubility enhancing protein such as MBP or SUMO, fusing two subunits of a

• br Acknowledgements br Introduction Ischemic retinopathy is

  2021-04-01

  

  Acknowledgements Introduction Ischemic retinopathy is common to the major causes of blindness, including proliferative diabetic retinopathy, venous occlusion, and retinopathy of prematurity. The hypoxia that follows retinal capillary obliteration drives deregulated growth of new blood vessels

• It has been reported that Eph

  2021-04-01

  

  It has been reported that Eph/Ephrin are involved in the regulation of the tumor angiogenesis [10], [11], [12]. The distinct and specific involvement of PYR-41 receptor and veins in tumor angiogenesis is unclear. EphrinB2 is expressed in arteries and its receptor EphB4 is expressed in veins; these

• In bone PGE exerts both anabolic and catabolic

  2021-04-01

  

  In bone, PGE2 exerts both anabolic and catabolic effects [6], [7], [8], [9]. Administration of PGE2 to mice lacking each of the four prostanoid receptors identified EP4 as the primary mediator of PGE2-induced bone formation [10]. While the role of EP1 in osteoblastic differentiation and bone metabol

• br Results br Discussion In this paper we present insights

  2021-04-01

  

  Results Discussion In this paper we present insights into the observed specificities of inhibitors targeting the ubiquitin-activating and related E1 igf 1 antagonist via crystal structures of the specific NEDD8-E1 inhibitor MLN4924, the dual NEDD8/Ub E1 inhibitor ABPA3, and the selective Ub-E

• TgTCEA from petals TgTCEA and TgTCEB

  2021-04-01

  

  TgTCEA from petals (TgTCEA1) and TgTCEB from pollen grains (TgTCEB1) were used throughout the study. The recombinant enzymes were expressed in , and purified as the His-tag-free forms as described previously., Enzyme reactions were performed at 4 mM substrates under the same conditions as described

• br Materials and methods br Results br Discussion The

  2021-04-01

  

  Materials and methods Results Discussion The phosphatidylinositol 3-kinase-like protein kinases, ATM, ATR, and DNA-PK, have all been implicated in H2AX phosphorylation in response to different stimuli [37], [41], [42], [43], [44], [45]. We show here that H2AX is phosphorylated in rodent and

• br Introduction Vitis vinifera L is one of the most

  2021-04-01

  

  Introduction Vitis vinifera L. is one of the most worldwide-grown fruit crop and is mostly used in the wine industry (Bouquet, 2011). Domestication and history changed dramatically the biology of this species and today there are thousands of V. vinifera varieties, being many of them closely relat

• In the present study we implemented the dendritic RCA

  2021-04-01

  

  In the present study, we implemented the dendritic RCA-induced formation of amplifying DNAzyme catalytic labels strategy for sensitive and accurate assay of MTase activity and the detection of DNA methylation. In comparison with the traditional RCA process, the proposed strategy achieved high amplif

• If the factors needed for A NHEJ are not completely

  2021-04-01

  

  If the factors needed for A-NHEJ are not completely defined and the A-NHEJ reaction mechanism nebulous, it is also fair to say that the biological role(s) of A-NHEJ is even more poorly understood. Most of the current interest in A-NHEJ, however, stems from its implicated use in the chromosomal trans

15511 records 705/1035 page Previous Next First page 上5页 701702703704705 下5页 Last page