Sökning: "actinobacteria"

Visar resultat 1 - 5 av 7 uppsatser innehållade ordet actinobacteria.

  1. 1. Comparative genomics of Central Arctic Ocean microbiota for observation of Alternative Carbon Fixation Pathways

    Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildning

    Författare :Kaavya Venkateswaran; [2023]
    Nyckelord :comparative genomics; microbial ecology; bioinformatics; carbon fixation; pangenomics;

    Sammanfattning : The Central Arctic Ocean is a repository of rich and diverse biota, whose major portion is one of the most important drivers of global biogeochemical cycles, including carbon cycling. In this study, the functional potential of the microbiota to fix carbon with alternative carbon fixation pathways were investigated along with their chemolithotrophic characteristics. LÄS MER

  3. 2. Phylogenetic analysis of aquatic microbiomes : Evolution of the brackish microbiome

    Master-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Ziling Deng; [2020]
    Nyckelord :Metagonome; Aquatic environments; Biodiversity; Evolution; Phylogenetic tree; Ancestor state reconstruction; Biome origin; Metagenom; vattenmiljöer; biologisk mångfald; utveckling; fylogenetiskt träd; rekonstruktion av förfäder; biom-ursprung;

    Sammanfattning : Microorganisms play crucial roles in aquatic environments in determining ecosystemstability and driving the turnover of elements essential to life. Understanding thedistribution and evolution of aquatic microorganisms will help us predict how aquaticecosystems will respond to Global Change, and such understanding can be gained bystudying these processes of the past. LÄS MER

  4. 3. Purification, functional characterization and crystallization of the PerR peroxide sensor from Saccharopolyspora erythraea

    Master-uppsats, Uppsala universitet/Strukturbiologi

    Författare :Grim Elison Kalman; [2019]
    Nyckelord :structural biology; cell culture; protein expression; genetic engineering; spectroscopy; X-ray crystallography; small angle X-ray scattering; SAXS; transcription factor; PerR; metal binding; antibiotics; Saccharopolyspora erythraea; S. erythraea; soil bacterium; actinobacteria; actinomycetes; oxidative stress; peroxide stress; structure determination; characterization; stabilization; peroxide sensor; iron sensor; manganese sensor; metalloprotein; metal ion homeostasis; metal ion; prokaryotic; strukturbiologi; cellodling; proteinuttryck; genteknik; spektroskopi; röntgenkristallografi; småvinkel-röntgenspridning; SAXS; transkriptionsfaktor; PerR; metallbindande; antibiotika; Saccharopolyspora erythraea; S. erythraea; jordartsbakterie; Aktinobakterier; Actinobacteria; Actinomycetes; oxidativ stress; peroxid stress; strukturbestämning; karaktärisering; stabilisering; peroxidsensor; järnsensor; mangansensor; metalljonshomeostas; metalljoner; prokaryot;

    Sammanfattning : This report summarizes the work on the cloning, expression, and purification of PerR, a metal sensing regulator from Saccharopolyspora erythraea and the subsequent characterization using small angle X-ray scattering and other biochemical methods. The report aims to provide an insight into prokaryotic metal homeostasis, provide a better understanding of how PerR works and provide valuable information for the continued work on the crystallization of PerR. LÄS MER

  5. 4. Klassisk och molekylärbiologisk bedömning av meteoriters biologi : En kort undersökning av vilka organismer som kan leva på meteoriter och hur släktskapen ser ut mellan dem

    Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Jenny Olsson; [2017]
    Nyckelord :Geomicrobiology; Meteorite; Biogeography; Phylogeny; Molecular biology;

    Sammanfattning : Meteorites were not acknowledged as truly extraterrestrial until in the 19th century. In this report, the ability of organisms to colonize meteorites was examined with classical and molecular biological methods. LÄS MER

  7. 5. HisA mutants with minor structural differences display major functional deviations

    Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildning; Uppsala universitet/Struktur- och molekylärbiologi

    Författare :András Erdélyi; [2016]
    Nyckelord :;

    Sammanfattning : Even though enzymes tend to specialize on one reaction during evolution, enzyme promiscuity is an abundant phenomenon. The subject of this thesis is the Salmonella enterica N’-[(5’-phosphosoribosyl)-formimino]-5-aminoimidazole-4 carboxamide-ribonucleotide (ProFAR) isomerase (SeHisA), a (βα)8-barrel enzyme from the histidine biosynthesis that catalyzes one reaction on one substrate in one organism. LÄS MER