X-Ray Crystallographic Examination of the Active Site of Arginine Kinase

question 12

Multiple Choice

X-ray crystallographic examination of the active site of arginine kinase was possible because

• A)it could be crystallized in the different structural forms.
• B)nitrate could be substituted for phosphate in the reaction.
• C)it was readily purified (unlike most other enzymes).
• D)MgADP was involved in the reaction.
• E)All of the above.

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