Compare catabolism of purine and pyrimidine nucleotides

Question

08 Feb 2025

Answer :

Word Count : 543

The catabolism of purine and pyrimidine nucleotides involves distinct biochemical pathways, reflecting their structural differences and metabolic processes in the body. Both nucleotides play essential roles in cellular functions, including DNA and RNA synthesis, but their degradation pathways diverge significantly.

Purine Nucleotide Catabolism:

Purines, such as adenine and guanine, are broken down into various metabolites before being excreted. The catabolic process starts with the conversion of nucleotides (AMP and GMP) into their respective nucleosides, adenosine and guanosine. Adenosine undergoes deamination by the enzyme adenosine deaminase, converting it to inosine. Inosine ___ __________ ________ ____ __________ ____ __________ ___ _____ _________ ____.
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