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Help! I do not understand how to answer this biochemistry question! Which of the following binding...

Help! I do not understand how to answer this biochemistry question!

Which of the following binding modes does a Walker A, P-loop ATP/GTP binding motif (AXXXXGKT) use to interact with ATP?

A. phosphoryl transfer

B. nucleotide transfer

C. pyrophosphoryl transfer

D. adenosyl transfer

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Answer #1

B)Nucleotide transfer-Walker A motif contains lysine residue, and they bind to the beta phosphate of the bound nucleotide and

interaction with ATP is successful. Phosphoryl is present in ATP and pyrophosphate is also in ATP and adenoysl forms the

amino acid constituent of ATP and they are not involved in any binding interaction,

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