The total number of metal ions and the number of coordinated imidazole units of histidine in the active site… · ABC26IN0881

Subject: Inorganic Chemistry · Chapter: Bioinorganic Chemistry · Topic: Metal Toxicity Medicine · Exam: NET JUNE 2015 · Marks: 2 · Difficulty: Medium

The total number of metal ions and the number of coordinated imidazole units of histidine in the active site of oxy-hemocyanin, respectively, are

(a)2 Cu and 6

(b)2 Fe and 5

(c)2 Cu and 6

(d)Fe and 3

Answer

Answer: A ✓ checked by 4AB · confidence high

Explanation

Oxyhemocyanin has a dicopper site with three histidine imidazoles on each copper: 2 Cu and 6 imidazoles.

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