• While oxysterols were most extensively studied for its

  2021-05-17

  

  While oxysterols were most extensively studied for its potent ability to mediate feedback regulation of cholesterol biosynthesis, some early investigations showed that the enzymes involved in its syntheses were highly upregulated in macrophages and dendritic cells—an indication of possible roles in

• br Acknowledgments We thank our

  2021-05-17

  

  Acknowledgments We thank our colleagues who have contributed to our understanding of the Biotin-HPDP sale and the structure and function of APC/C, and apologize to those whose work we were unable to cite here. We thank J. Rajan Prabu for making the movies showing APC/C conformational changes. Our

• br RING type E s and

  2021-05-17

  

  RING-type E3s and their substrates There is enormous diversity in substrate ubiquitination and its regulation, as the targets of RING-type E3s are incredibly varied. RING-type E3s are implicated as tumor suppressors, oncogenes, and mediators of endocytosis, and play critical roles in complex mult

• br Introduction O Methylguanine DNA

  2021-05-17

  

  Introduction O6-Methylguanine-DNA methyltransferase (MGMT) is a DNA-repair enzyme that specifically transfers alkyl adducts from the O6 position of guanine to the cysteine residue (Cys145) in its active site. In cancer cells, this ability of MGMT disrupts the cytotoxic actions of alkylating antic

• Over the past decade targeting DNA

  2021-05-17

  

  Over the past decade, targeting DNA repair proteins has emerged as an effective tool to enhance chemosensitivity of malignant cells [9]. However, identification and selection of the proper target of DNA repair pathways is critical to increase cytotoxic activity of chemotherapeutic agents in cancer c

• br The central role of

  2021-05-17

  

  The central role of DNA-PK in the NHEJ NHEJ can be divided in several steps (Fig. 1A): 1) recognition and binding of Ku at each ends of the DSB following by the assembly of the DNA-PK at the break points and bridging; 2) phosphorylation of the DNA ends by DNA-PKcs; 3) ligation of the ends by DNA

• Importantly in genetic studies Saccharomyces cerevisiae Pif

  2021-05-17

  

  Importantly, in genetic studies, Saccharomyces cerevisiae Pif1, a member of the SF1 family of helicases, has been implicated in BIR in conjunction with Pol δ (Chung et al., 2010, Saini et al., 2013, Wilson et al., 2013). Using highly purified S. cerevisiae proteins, a system that permits dissection

• br Diacylglycerol kinases and T cell responses br Diacylglyc

  2021-05-14

  

  Diacylglycerol kinases and T cell responses Diacylglycerol kinases and cancer Several studies implicate DGKα in tumor progression, but its function is debated, as it might also have roles as a tumor suppressor. Diminished DGKα expression is linked to malignant transformation in epithelia. High

• Acanthopanax senticosus Rupr Maxim Harms a nontoxic

  2021-05-14

  

  Acanthopanax senticosus (Rupr. & Maxim.) Harms, a nontoxic herb belongs to the family of Araliaceae, which found in Northeast Asia. A. senticosus traditionally used as a tonic to treat rheumatism, diabetes, and hepatitis [7]. Previous phytochemical and biological investigations found its roots and s

• Paxilline Moreover a ligand for fusin has recently been

  2021-05-14

  

  Moreover, a ligand for fusin has recently been found: the lymphocyte chemoattractant stromal-derived factor-1 (SDF-1) binds to CHO Paxilline transfected with fusin and promotes secondary messenger production (Bleul et al., 1996; Oberlin et al., 1996). A new name, CXCR-4, has been proposed for the re

• br Crystal structure of c FMS

  2021-05-14

  

  Crystal structure of c-FMS and binding pattern of CSF-1 and IL-34 c-FMS is a 972 amino acids polypeptides containing transmembrane glycoprotein [19]. It contains all the necessary domains required for tyrosine kinase activity, i.e. 512 amino bungarotoxin N-terminal extracellular segment, hydroph

• br Collagens as new drivers of zebrafish tissue

  2021-05-14

  

  Collagens as new drivers of zebrafish tissue regeneration Contrary to mammals, zebrafish possess very high regeneration capacities and thereby represent a versatile model to study tissue and organ regeneration. Adult fish can fully reconstruct their brain, spinal cord, retina, kidney, liver, panc

• Finally considering the encouraging inhibitory

  2021-05-14

  

  Finally, considering the encouraging inhibitory and selectivity properties of compound and against isolated CK1δ, we have also acquired a very preliminary cytotoxicity profile on human ovarian carcinoma cell line (2008) and on its cisplatin-resistant clone (C13). Results showed that after 48h of exp

• Phenylbenzofurans are a very important molecule skeleton due

  2021-05-14

  

  Phenylbenzofurans are a very important molecule skeleton due to their synthetic versatility and their proved pharmacological properties [2]. They are synthetic compounds in which an additional phenyl ring is present in any position of the benzofuran nucleus. This could be easily obtained possible by

• Estrogens Definition and history The term estrogens

  2021-05-14

  

  Estrogens: Definition and history The term “estrogens” refers to a group of female hormones, including estrone, estradiol, estriol, and estretrol (Fig. 1). Chemically, estrogens belong to the family of organic compounds known as steroids. As such, their core structure is composed of 17 carbon-carbo

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