PURINE BIOSYNTHESIS: Nucleotide consists of a purine or ...

De Novo Synthesis of Purine Nucleotides (IMP, AMP & GMP): i. Free bases are not intermediates in de novo pathways of nucleotides synthesis i.e., they are not synthesized and then attached to ribose phosphate. ii. The purine ring structure is built up one or a few atoms at a time, and is gradually attached to ribose phosphate throughout the ... ................
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