purine ribonucleoside triphosphate catabolic process +
pyrimidine deoxyribonucleoside triphosphate catabolic process +
pyrimidine ribonucleoside triphosphate biosynthetic process +
pyrimidine ribonucleoside triphosphate catabolic process +
The chemical reactions and pathways resulting in the breakdown of pyrimidine ribonucleoside triphosphate, a compound consisting of a pyrimidine base linked to a ribose sugar esterified with triphosphate on the sugar.