Sökning: "pi-helix"

Hittade 2 avhandlingar innehållade ordet pi-helix.

1. 1. Structure and mechanism of iron and magnesium chelatases - at the heme-chlorophyll branch-point

   Författare :Michel Fodje; Lunds universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Molecular biophysics; pi-helix; secondary structure; AAA; porphyrin metallation; chelatase; Molekylär biofysik;

   Sammanfattning : Tetrapyrroles are synthesised through a single branched biosynthetic pathway. Heme and chlorophyll are synthesised from the common intermediate protoporphyrin IX at the heme-chlorophyll branch-point. LÄS MER

3. 2. Crystallographic studies on porphyrin metallation by ferrochelatase

   Författare :David Lecerof; Biokemi och Strukturbiologi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; thermal and mechanical properties; Condensed matter:stucture; fasjämvikt; kristallografi; egenskaper termiska och mekaniska ; Kondenserade materiens egenskaper:struktur; crystallography; phase equilibria; Magnesium; pi-helix; Zinc; ferrochelatase; Metal binding; porphyrin metallation;

   Sammanfattning : Ferrochelatase catalyses the terminal step in heme biosynthesis by inserting a ferrous ion into protoporphyrin IX. The reaction mechanism has in this thesis been studied by mainly crystallographic methods. LÄS MER