Q26 · CSIR NET Chemistry, June 2013
Paper: CSIR NET June 2013 · Subject: Inorganic Chemistry · Chapter: Bioinorganic Chemistry · Topic: Copper Proteins · Marks: 2 · Difficulty: Easy
The coordination geometry of copper (II) in the type I copper protein plastocyanin is:
(a)square planar
(b)tetrahedral
(c)octahedral
(d)distorted tetrahedral
Answer
Answer: D ✓ checked by 4AB · confidence high
Explanation
The type-1 (blue) copper site of plastocyanin is a distorted tetrahedron of two His, one Cys and one Met — the entatic geometry between Cu(II) and Cu(I) preferences.
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