• Repulsive interactions towards undesirable substrates are ar

  2019-11-16

  

  Repulsive interactions towards undesirable substrates are arguably a very efficient means to implement specificity [8]. In particular, it could be assumed that discrimination against a substrate that is larger than the cognate substrate may be achieved easily by restricting the active site and explo

• Beyond phosphorylation cancer cells may alter pyrimidine

  2019-11-16

  

  Beyond phosphorylation, cancer Recent data may alter pyrimidine biosynthesis through the activation of the proto-oncogenic transcription factor MYC. MYC is a master regulator of many different pathways and has significant influence on the expression of nucleotide metabolism genes. Previous studies h

• In this context we initiated a program to develop new

  2019-11-16

  

  In this context, we initiated a program to develop new antiviral chemotypes towards a host factor implicated in much replication: the host (human) dihydrofolate reductase (DHFR) [21]. We recently identified this enzyme as the molecular target of 1-aryl-4,6-diamino-1,2-dihydrotriazines, structurally

• The transcriptome analysis of barley seeds in two tissue fra

  2019-11-16

  

  The transcriptome analysis of barley seeds in two tissue fractions: starchy endosperm/aleurone and embryo/scutellum, during maturation, desiccation and germination, revealed the large group of GA-responsive genes (Sreenivasulu et al., 2008). These transcripts have been divided into two groups. Nearl

• A topological property P is said to be cut

  2019-11-16

  

  A topological property P is said to be cut point hereditary [3] if whenever a space X has property P, then, for every there exists some separation of such that each of and has property P. A space X is called connected ordered topological space (COTS) [5] if it is connected and has the property

• P H is a nonheme iron II dioxygenase that

  2019-11-16

  

  P4H is a nonheme iron(II) dioxygenase that uses O2 and α-ketoglutarate as co-substrates (Fig. 1A). The three-dimensional structure of mammalian P4H is unknown. We reasoned that an electrophilic analog of α-ketoglutarate could serve as an irreversible inhibitor of the enzyme and, hence, a useful prob

• br Conclusion br Experimental NMR spectra were recorded on

  2019-11-16

  

  Conclusion Experimental NMR spectra were recorded on a Jeol spectrometer at either 270 or 400 MHz for 1H spectra and either 68 or 100 MHz for 13C spectra. All chemical shifts are quoted in ppm relative to tetramethylsilane. In the assignment of signals the abbreviation DHN is used for 2,3-dihy

• ATP dependent DNA ligases in

  2019-11-15

  

  ATP-dependent DNA ligases in vertebrates are divided in three families [7]. Family I DNA ligases are responsible for sealing the nicks during DNA replication and in long-patch base excision repair (BER). Family III DNA ligases are involved in short-patch BER. Lastly, family IV DNA ligases are involv

• br The LSCP model and its

  2019-11-15

  

  The LSCP model and its properties In this section, we first introduce the LSCP model in Section 2.1. Some examples of the model are presented in Section 2.2 and basic properties of the model are presented in Section 2.3. Finally, Section 2.4 introduces finite dimensional approximations necessary

• Rat pheochromocytoma PC cells have been widely used as a

  2019-11-15

  

  Rat pheochromocytoma PC12 cells have been widely used as a cell system to study intracellular signaling leading to neurite outgrowth. The advantages of using PC12 cells in the CHK studies are the fact that they naturally express the rat form of CHK and the observation that down-regulation of CHK fun

• Redundancy of tumor promoting signaling

  2019-11-15

  

  Redundancy of tumor promoting signaling pathways is one of the mechanisms that prevent a lasting effect of targeted therapies, as has been demonstrated by the growing number of alternative pathways that confer resistance to EGFR-targeted therapies [3]. We show here that CSF-1R can, at least partiall

• ARCA synthesis br Introduction The ubiquitination status of

  2019-11-15

  

  Introduction The ubiquitination status of a target protein is achieved via a delicate balance between two opposing forces: ubiquitin E3 ligases and DUBs. It has been postulated that the majority of proteins in a cell are regulated and modified by ubiquitin at some point (Hershko and Ciechanover,

• BRCC is the catalytic subunit responsible

  2019-11-15

  

  BRCC36 is the catalytic subunit responsible for the majority of K63-Ub-specific DUB activity in the cytoplasm and in the nucleus as part of two distinct macromolecular assemblies characterized by the presence of either of the MPN– pseudo DUB proteins KIAA0157 or Abraxas (Cooper et al., 2009, Dong et

• Diabetic retinopathy is a chronic inflammatory

  2019-11-15

  

  Diabetic retinopathy is a chronic inflammatory disease. Local inflammation plays a pivotal role in the pathological development and progression of this disease [24]. In addition to TNF-α, several other cytokines, chemokines, and other factors such as IL-1β, IL-6, and C-reactive protein have been in

• In the present study we did not examine

  2019-11-15

  

  In the present study, we did not examine whether the CpG site-specific COMT methylation are associated with any genetic variants in response to E2, GEN or SFN. Some studies suggest that oxidative DNA damage causes genetic variation which may induce epigenetic changes that lead to gene silencing (Kho

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