2.7.4.14 cytoplasm - 5737 645161 2.7.4.14 cytoplasm cytoplasmic isozyme 5737 739700 2.7.4.14 cytosol - 5829 645156, 739215 2.7.4.14 mitochondrion - 5739 761290 2.7.4.14 mitochondrion N-terminal signal targets the enzyme to mitochondria 5739 645155 2.7.4.14 mitochondrion UMP-CMPK2 contains an N-terminal mitochondrial targeting sequence 5739 693063 2.7.4.14 nucleus - 5634 645156 2.7.4.14 nucleus localization of enzyme CMPK at DNA damage sites, co-localization and complex formation with Tip60 and ribonucleotide reductase 5634 737991 2.7.4.14 nucleus nuclear isozyme 5634 739700