* * * (TNA) * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * # people * * * * * Marv Caruthers * R. Letsinger * C. Reese * (TNA) # relevant processes * * * * * # relevant proteins * * ## DNA replication enzymes and proteins * * * * * * * * * ## ribonucleotide synthesis * [pyrimidine ribonucleotide metabolic synthesis](http://en.wikipedia.org/wiki/Pyrimidine_metabolism) * [purine ribonucleotide metabolic synthesis](http://en.wikipedia.org/wiki/Purine_metabolism) * *