Sökning: "Cytochrome P450"

Visar resultat 1 - 5 av 151 avhandlingar innehållade orden Cytochrome P450.

  1. 1. Theoretical Studies of Cytochrome P450

    Författare :Patrik Rydberg; Beräkningskemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; quantum chemistry; Proteins; enzymology; Proteiner; enzymologi; Theoretical chemistry; transition-state force field; peroxidase; theoretical chemistry; molecular dynamics; density functional theory; cytochrome P450; porphyrin; haem; heme; kvantkemi; Teoretisk kemi;

    Sammanfattning : The cytochromes P450 are a large enzyme family that is found in all living organisms and takes part in both endogenous and exogenous metabolism. They are primarily mono-oxygenases and perform a wide range of reactions. LÄS MER

  3. 2. Bacterial cytochromes P450-Studies on Cytochrome P450 102A2 and P450 102A3 of Bacillus subtilis

    Författare :Mattias Gustafsson; Avdelningen för medicinsk mikrobiologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Microbiology; AbrB; Spo0A; monooxygenase; heme; Bacillus subtilis; Cytochrome P450; bacteriology; virology; mycology; Mikrobiologi; bakteriologi; virologi; mykologi;

    Sammanfattning : Cytochromes P450 constitute a super-family of heme containing mixed function mono-oxygenases that is found in all branches of life. They introduce single oxygen atoms, mostly in the form of hydroxyl groups, into lipophilic substances and thereby render them more hydrophilic and susceptible to further reactions. LÄS MER

  4. 3. Selective Retention of β-Carbolines and 7,12-Dimethylbenz[a]anthracene in the Brain : Role of Neuromelanin and Cytochrome P450 for Toxicity

    Författare :Anna Östergren; Eva Brittebo; Nils Gunnar Lindquist; Anne-Lie Svensson; Hans Tjälve; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Toxicology; β-carboline; neuromelanin; norharman; harman; parkinsonism; Parkinson s disease; motoric impairment; behaviour; glia cells; substantia nigra; dopamine melanin; PC12 cells; ER stress; grp78; hsp90; cytochrome P450; CYP1A1; CYP1B1; blood-brain interfaces; 7; 12-dimethylbenz[a]anthracene; polycyclic aromatic hydrocarbon; endothelial cell; smooth muscle cell; bioactivation; Toxikologi; Toxicology; Toxikologi; Toxicology; toxikologi;

    Sammanfattning : The ß-carbolines norharman and harman structurally resemble the synthetic compound 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) that is known for its ability to damage neuromelanin-containing dopaminergic neurons of the substantia nigra and thereby induce parkinsonism. MPTP is, however, not normally present in the environment whereas the ß-carbolines are present in cooked food and tobacco smoke. LÄS MER

  5. 4. Interactions between cytochrome P450 and estrogenic compounds in fish

    Författare :Linda Hasselberg; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Cytochrome P450; CYP1A; CYP3A; glutathione; alkylphenols; ethynylestradiol; ketoconazole; vitellogenin; Atlantic cod; rainbow trout; fish;

    Sammanfattning : DISSERTATION ABSTRACT Hasselberg, Linda. Interactions between cytochrome P450 and estrogenic compounds in fish. Department of Zoophysiology, Göteborg University, Box 463, SE-405 30 Göteborg, Sweden Contamination by various pollutions is an environmental concern. LÄS MER

  7. 5. Theoretical Studies of Drug-Metabolizing Cytochrome P450 Enzymes

    Författare :Junhao Li; Yaoquan Tu; Ulf Ryde; KTH; []
    Nyckelord :Cytochrome P450 enzymes; molecular dynamics; quantum chemistry; structural flexibililty; ONIOM; Teoretisk kemi och biologi; Theoretical Chemistry and Biology;

    Sammanfattning : The family of cytochrome P450 enzymes (P450s) belongs to one of the most important enzyme families in the human body. P450s are involved in the synthesis of endogenous compounds and metabolism of exogenous substances. LÄS MER