Q28 · CSIR-NET Chemistry, December 2017
Paper: CSIR-NET December 2017 · Subject: Inorganic Chemistry · Chapter: Bioinorganic Chemistry · Topic: Bioinorganic Chemistry – General · Marks: 2 · Difficulty: Medium
The active site structure for oxy-hemerythrin is:
(a)
(b)
(c)
Answer
Answer: C ✓ checked by 4AB · confidence medium
Explanation
Oxyhemerythrin is Fe(III)–Fe(III) with a μ-oxo bridge and two carboxylate bridges. One Fe has 3 His and the other 2 His plus terminal hydroperoxide, which hydrogen-bonds to the μ-oxo (c).
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