>sp|P04184-2|KITH_MOUSE Thymidine kinase, cytosolic OS=Mus musculus GN=Tk1 MFSGKSTELMRRVRRFQIAQYKCLVIKYAKDTRYSNSFSTHDRNTMDALPACMLRDVTQE SLGVAVIGIDEGQFFPDIVDFCEMMANEGKTVIVAALDGTFQRKAFGSILNLVPLAESVV KLTAVCMECFREAAYTKRLGLEKEVEVIGGADKYHSVCRLCYFKKSSAQTAGSDNKNCLV LGQPGEALVVRKLFASQQVLQYNSAN