Q6(d). Rubredoxin and how it differs from ferredoxins
Explain the structural and other features of rubredoxin. How does it differ from ferredoxins?
Answer in brief
Rubredoxin is the simplest iron–sulfur protein: one Fe held tetrahedrally by four cysteine S atoms with no sulfide; ferredoxins contain Fe₂S₂ or Fe₄S₄ clusters bridged by sulfide and work at much more negative potentials.
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Coversrubredoxinferredoxiniron–sulfur proteinsFe4S4 clusterbioinorganic chemistryelectron transfer
All parts of Question 6
- 6(a) Completing five reactions of p-block compounds10 marks
- 6(b) Stereoisomers of [Co(CN)₂(H₂O)₂(NH₃)₂]⁺10 marks
- 6(c) IUPAC names of five complexes10 marks
- 6(d) Rubredoxin and how it differs from ferredoxins10 marks
- 6(e) Framework electrons and structures of three borane anions10 marks