Dna synthesis

Xem 1-20 trên 53 kết quả Dna synthesis
  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Minireview cung cấp cho các bạn kiến thức về ngành y đề tài: Origin of nascent lineages and the mechanisms used to prime second-strand DNA synthesis in the R1 and R2 retrotransposons of Drosophila

    pdf0p thulanh21 12-11-2011 19 4   Download

  • Since the discovery of the DNA structure researchers have been highly interested in the molecular basis of genome inheritance. This book covers a wide range of aspects and issues related to the field of DNA replication. The association between genome replication, repair and recombination is also addressed, as well as summaries of recent work of the replication cycles of prokaryotic and eukaryotic viruses. The reader will gain an overview of our current understanding of DNA replication and related cellular processes, and useful resources for further reading....

    pdf312p camchuong_1 04-12-2012 20 3   Download

  • We have recently expressed in bacteria the enzymatically active reverse transcriptase (RT) of bovine leukemia virus (BLV) [Perach, M. & Hizi, A. (1999) Virology 259, 176–189]. In the present study, we have studied in vitro two features of the DNA polymerase activity of BLV RT, the processivity of DNA synthesis and the fidelity of DNA synthesis. These properties were compared with those of the well-studied RTs of human immunodeficiency virus type 1 (HIV-1) and murine leukaemia virus (MLV).

    pdf9p research12 01-06-2013 10 3   Download

  • Duodenase is a 29-kDa serine endopeptidase that displays selective trypsin- and chymotrypsin-like substrate specificity. This enzyme has been localized to epitheliocytes of Brunner’s glands, and as described here, to mast cells within the intestinal mucosa and lungworm-infected lung, implying an important additional role in inflammation and tissue remodelling. In primary cultures of pulmonary artery fibroblasts, duodenase induced a concentration-dependent increase in [3H]thymidine incorporation with a maximal effect observed at 30 nM.

    pdf10p research12 01-06-2013 13 2   Download

  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Critical Care giúp cho các bạn có thêm kiến thức về ngành y học đề tài: Endothelin-1 enhances fibrogenic gene expression, but does not promote DNA synthesis or apoptosis in hepatic stellate cells...

    pdf12p thulanh17 27-10-2011 18 1   Download

  • DNA replication is fundamental to cellular life on earth, and replication initiation provides the primary point of control over this process. Replication initiation in all organisms involves the interaction of initiator proteins with one or more origins of replication in the DNA, with subsequent regulated assembly of two replisome complexes at each origin, melting of the DNA, and primed initiation of DNA synthesis on leading and lagging strands.

    pdf691p bachduong1311 07-12-2012 27 3   Download

  • Human papillomavirus type 16 (HPV16) DNA replication, which requires two viral proteins E1 and E2, occurs only in the differentiating epithelium. Besides the general factors necessary for cellular DNA synthesis, other unidentified cellular factors are assumed to be involved in the regulation of HPV DNA replication.

    pdf13p galaxyss3 07-03-2013 16 2   Download

  • DNA polymeraseeco-operates with polymerasesaanddin the replicative DNA synthesis of eukaryotic cells. We describe here a specific physical interaction between DNA polymerase eand RNA polymerase II, evidenced by reciprocal immunoprecipitation experiments. The interacting RNA polymerase II was the hyperphosphorylated IIO form implicated in tran-

    pdf15p inspiron33 23-03-2013 12 2   Download

  • The naturally synchronous plasmodia of myxomycetes synthesize poly(b-L-malic acid), which carries out cell-specific functions. In Physarum polycephalum, poly(b-L-malate) [the salt form of poly(b-L-malic acid)] is highly concentrated in the nuclei, repressing DNA synthetic activity of DNA polymerases by the formation of reversible complexes. To test whether this inhibitory activity is cell-cycle-dependent, purified DNA polymerase a of P.

    pdf6p research12 01-06-2013 27 2   Download

  • Chapter 8 includes contents: The genetic code, transcription: from DNA to RNA, translation: from mRNA to protein, differences in gene expression between prokaryotes and eukaryotes, a comprehensive example: computerized analysis of gene expression in C. elegans, The effect of mutations on gene expression and gene function.

    ppt70p tangtuy04 12-03-2016 21 3   Download

  • We learned in chapter 20 that DNA replication is at least semidiscontinuous and requires the synthesis of primers before DNA synthesis can begin. We have also learned about some of the major proteins involved in DNA replication in E. coli. Thus, we know that DNA replication is complex and involves more than just a DNA polymerase. This chapter presents a close look at the mechanism of this process in E. coli and in eukaryotes. We will look at the three stages of replication-initiation, elongation, and termination-in a variety of systems.

    ppt24p tangtuy02 08-03-2016 6 1   Download

  • Chapter 21 - DNA Replication II: Detailed mechanism. We learned in chapter 20 that DNA replication is at least semidiscontinuous and requires the synthesis of primers before DNA synthesis can begin. We have also learned about some of the major proteins involved in DNA replication in E. coli. Thus, we know that DNA replication is complex and involves more than just a DNA polymerase. This chapter presents a close look at the mechanism of this process in E. coli and in eukaryotes. We will look at the three stages of replication-initiation, elongation, and termination-in a variety of systems.

    ppt31p tangtuy05 30-03-2016 3 1   Download

  • Medicinal chemistry is a discipline at the intersection of chemistry, especially synthetic organic chemistry, and pharmacology and various other biological specialties, where they are involved with design, chemical synthesis and development for market of pharmaceutical agents (drugs). Compounds used in medical applications are most often organic compounds, which are often divided into the broad classes of small organic molecules and biologics, the latter of which are most often medicinal preparations of proteins. Inorganic and organometallic compounds are also useful as drugs.

    pdf418p wqwqwqwqwq 09-07-2012 100 46   Download

  • Gonadotropin releasing hormone receptor (GnRHR) is secreted from hypothalamus and delivered to the anterior pituitary via the hypophyseal portal circulation where it binds to the GnRHR on the surface of gonadotropes triggering the synthesis and secretion of the gonadotropins, follicle stimulating hormone (FSH) and luteinizing hormone (LH). In the female, LH stimulates the production of androgens by the thecal cells that surround the growing ovarian follicle.

    pdf582p ti_du_hoang 15-08-2012 40 4   Download

  • Aimed at shedding light on the possible options for developing countries to make use of agri- environmental and rural development measures within the framework of the WTO, this paper surveys those programs used in the Quad that are considered non or at most minimally trade distorting, non-discriminatory and otherwise consistent with current WTO rules. Furthermore, it tries to illustrate the possible outcomes in the ongoing negotiations in the WTO on the Agreement on Agriculture (AoA) from a developing country viewpoint, related to the types of mechanisms surveyed above. ...

    pdf195p tieuyeuquai456 08-10-2012 29 3   Download

  • This book is an outgrowth of the George Fisher Baker Lecture series presented by one of us (C.R.C.) at Cornell University in the fall of 1992. This author is tremendously grateful to all those at Cornell who made this occasion truly memorable, personally, and most pro- ductive, intellectually. Included especially are Jean Fréchet, Barbara Baird, John Clardy, Jerrold Meinwald, Fred McLafferty, Benjamin Widom, David Usher, and Quentin Gibson, among many others.

    pdf613p banhkem0908 24-11-2012 36 3   Download

  • Cell-free protein synthesis using cell extracts from Escherichia coli, wheat germ and rabbit reticulocytes has been used for over 40 years to produce small amounts of radiolabeled proteins for identification of gene products and other applications. In the E. coli system programmed with plasmid DNA, the cell extract contains or is supplemented with an RNA po-lymerase to transcribe the gene, and the mRNAs are translated by a complex mixture that contains ribo-somes and a full complement of initiation,...

    pdf2p inspiron33 25-03-2013 16 3   Download

  • important regulators of biological processes in animals and plants. MiRNAs regulate gene expression at the posttranscriptional level by binding to mRNAs and either inhibit translation or modify the stability of the mRNA. Due to the important biological role of miRNAs it is of great interest to study their expression level in the cells. Furthermore, miRNAs have been associated with cancer and other diseases [1] and miRNA expression can help in the diagnosis and prognostic of human disease [2,3].

    pdf11p zingzing09 24-04-2013 26 3   Download

  • a-defensins are released from granules of leukocytes and are implicated in inflammatory and fibrotic lung diseases. In the present study, the effects of a-defensins on the proliferation and collagen synthesis of lung fibroblasts were examined. We found thata-defensin-1 and a-defensin-2 induced dose-dependent increases in the incorporation of 5-bromo-2¢-deoxy-uridine into newly synthesized DNA in two lines of human lung fibroblasts (HFL-1 and LL-86)

    pdf12p viettel02 20-02-2013 16 2   Download

  • Mollicutes are wall-less bacteria and cause various diseases in humans, ani-mals and plants. They have the smallest genomes with low G + C content and lack many genes of DNA, RNA and protein precursor biosynthesis. Nucleoside diphosphate kinase (NDK), a house-keeping enzyme that plays a critical role in the synthesis of nucleic acids precursors, i.e.

    pdf8p galaxyss3 19-03-2013 11 2   Download

CHỦ ĐỀ BẠN MUỐN TÌM

Đồng bộ tài khoản