Browsing by Subject "Biosynthesis"

Now showing items 1-6 of 6

    • Biosynthetic studies on vitamin B₁₂ 
      Santander, Patricio Joaquin (Texas A&M University. Libraries, 1987)
      The role of folates in the enzymatic formation of the porphyrin macrocycles was investigated. Uroporphyrinogen III cosynthetase-free hydroxymethylbilane synthase from Rhodopseudomonas spheroides was incubated with the ...
    • Probing the Biosynthesis and Mode of Action of Azinomycin B 
      Kelly, Gilbert Thomson (2010-10-12)
      Since the isolation of azinomycins A and B in 1954 from the soil bacterium, Streptomyces sahachiroi, these natural products have been synthetic targets. Both compounds exhibit in vitro cytotoxic activity at submicromolar ...
    • The regulation of cytosine deaminase in Salmonella typhimurium 
      West, Thomas Patrick (Texas A&M University. Libraries, 1980)
      The regulation of the enzyme cytosine deaminase was investigated at the level of enzyme synthesis and at the level of enzyme activity in Salmonella typhimurium. Regulation of cytosine deaminase synthesis was examined to ...
    • Syntheses of linear tetrapyrroles as potential inhibitors for uroporphyrinogen III synthase 
      Xue, Tianhan (Texas A&M University. Libraries, 1992)
      Living systems depend on a variety of metal complexes of tetrapyrrolic macrocycles to carry out many biologically important functions. Among these pigments of life are heme, chlorophyll and vitamin B[12]- All these substances ...
    • Synthesis of substrates and analogs for the enzymes of vitamin B₁₂ biosynthesis 
      Danso-Danquah, Richmond Edward (Texas A&M University. Libraries, 1990)
      The synthesis of some of the postulated intermediates in the pathway of vitamin B12 biosynthesis, precorrins-4A, -4B and -5, were initiated. The different ring precursors necessary for the precorrins were prepared as racemic ...
    • Thiamin Biosynthesis in Yeast – Mechanistic Studies on THI5, A Remarkable Suicide Enzyme 
      Mondal, Anushree (2022-07-29)
      Thiamin pyrophosphate is the active form of vitamin B1 or thiamin. It is an essential co-factor for all living systems and participates in biochemical reactions like carbohydrate and branched-chain amino acid metabolism. ...