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The number of histidine amino acid nitrogen atoms coordinated to bimetallic active site of oxyhemocyanin and oxyhemerythrine, respectively, are:
  • a)
    2, 3 and 3, 3
  • b)
    3, 3 and 2, 3
  • c)
    3, 3 and 2, 2
  • d)
    2, 4 and 3, 2
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
The number of histidine amino acid nitrogen atoms coordinated to bimet...
  • The number of histidine amino acid nitrogen atoms coordinated to the bimetallic active site of oxyhemocyanin and oxyhemerythrin, respectively, are determined as follows:
  • Oxyhemocyanin:
    • Contains a dicopper (Cu22​) active site.
    • Each copper ion is coordinated by three histidine nitrogen atoms.
    • Total for the bimetallic site: 3 histidine N per Cu × 2 Cu = 3, 3.
  • Oxyhemerythrin:
    • Contains a diiron (Fe22​) active site.
    • One iron is coordinated by three histidine nitrogen atoms, and the other by two histidine nitrogen atoms.
    • Total for the bimetallic site: 3 histidine N (Fe11​) + 2 histidine N (Fe22​) = 2, 3.
 
Final Answer:
b) 3, 3 and 2, 3
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The number of histidine amino acid nitrogen atoms coordinated to bimetallic active site of oxyhemocyanin and oxyhemerythrine, respectively, are:a)2, 3 and 3, 3b)3, 3 and 2, 3c)3, 3 and 2, 2d)2, 4 and 3, 2Correct answer is option 'B'. Can you explain this answer? for Chemistry 2025 is part of Chemistry preparation. The Question and answers have been prepared according to the Chemistry exam syllabus. Information about The number of histidine amino acid nitrogen atoms coordinated to bimetallic active site of oxyhemocyanin and oxyhemerythrine, respectively, are:a)2, 3 and 3, 3b)3, 3 and 2, 3c)3, 3 and 2, 2d)2, 4 and 3, 2Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Chemistry 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The number of histidine amino acid nitrogen atoms coordinated to bimetallic active site of oxyhemocyanin and oxyhemerythrine, respectively, are:a)2, 3 and 3, 3b)3, 3 and 2, 3c)3, 3 and 2, 2d)2, 4 and 3, 2Correct answer is option 'B'. Can you explain this answer?.
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