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. Author manuscript; available in PMC: 2012 Aug 2.
Published in final edited form as: Biochemistry. 2011 Jul 8;50(30):6549–6558. doi: 10.1021/bi200707z

Table 2.

SpUP substrate specificity

substrate cleavage activity (nmol/mg/h)
uridine 485,000
deoxyuridine 673,000
thymidine 352,000
cytidine < 10,000
deoxycytidine < 10,000
adenosine < 10,000
guanosine < 10,000
inosine < 10,000