1	PAX	5'-phosphothymidine (3'-5')-pyrophosphate adenosine 3'-phosphate	1.000
2	PUA	Adenylate-3'-phosphate-[[2'-deoxy-uridine-5'-phosphate]-3'-phosphate]	0.980
3	139	Adenosine-5'-[trihydrogen diphosphate] P'-3'-ester with 2'-deoxyuridine	0.755