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  • Studies on the ecological functions of the antidiabetic drugs acarbose

    Creator:
    Tanoeyadi, Samuel
    Abstract:
    Natural products (a.k.a. secondary metabolites) are produced by living organisms that are not essential for their growth, development, or reproduction, but may play a role in their survival or adaptability in nature. Many secondary metabolites isolated from plants and microbes have found use as molecular probes, drug leads, or medicine...
    Resource Type:
    Masters Thesis
    Full Text:
    through my master’s thesis project. I want to also thank all my committee members, Dr. Kerry McPhail, Dr

  • Biochemical Studies of Pactamycin Biosynthesis in Streptomyces pactum

    Creator:
    Eida, Auday
    Abstract:
    Ribomimetic natural products have long been known for their important biological activities. Structurally, they contain a densely functionalized cyclopentane unit that resembles ribose. Pactamycin, the prominent member of this class of natural products, is a potent protein synthesis inhibitor produced by the soil bacterium Streptomyces pactum. In pactamycin, the aminocyclopentitol...
    Resource Type:
    Dissertation
    Full Text:
    members: Dr. Kerry McPhail, Dr. Benjamin Philmus, Dr. Jane Ishmael, and Dr. Daniel Rocky for their

  • Pactamycin Inspired Drug Discovery: A Synthetic and Chemoenzymatic Approach

    Creator:
    Brumsted, Corey J.
    Abstract:
    Pactamycin, first reported in 1962, is a potent antitumor antibiotic produced by the soil bacterium Streptomyces pactum. Structurally, it contains a cyclopentitol core unit, a 3-aminoacetophenone (3AAP), a 6-methylsalicylic acid (6-MSA), and a N,N-dimethyl urea. The aminocyclopentitol ring is derived from glucose, possibly via N-acetyl glucosamine (GlcNAc), the 3-aminoacetophenone (3AAP)...
    Resource Type:
    Dissertation

  • Mechanistic Studies and Catalytic Engineering of the Pseudoglycosyltransferase VldE

    Creator:
    Abuelizz, Hatem A.
    Abstract:
    This thesis describes an investigation of the molecular basis of the substrate specificity and catalytic mechanism of a unique pseudoglycosyltransferase (PsGT) enzyme, VldE. PsGTs are a newly discovered group of glycosyltransferase (GT)-like proteins that catalyze the transfer of a pseudosugar to an acceptor molecule via a C-N bond formation. This...
    Resource Type:
    Dissertation
    Full Text:
    work. I also thank my thesis committee members Dr. Mark Zabriskie, Dr. Kerry McPhail, Dr. Fred

  • Biosynthetic engineering of new pactamycins

    Creator:
    Lu, Wanli
    Abstract:
    Among the myriad of naturally occurring bioactive compounds are the aminocyclopentitol-containing natural products that represent a family of sugar-derived microbial secondary metabolites, such as the antibiotics pactamycin, allosamidin, and trehazolin. Pactamycin, a structurally unique aminocyclitol antibiotic isolated from Streptomyces pactum, consists of a 5-membered ring aminocyclitol (cyclopentitol) unit, two aromatic...
    Resource Type:
    Dissertation
    Full Text:
    . Mark Zabriskie, Dr. Arup Indra, Dr. Xihou Yin, and Dr. Kerry McPhail for their valuable time and