. Author manuscript; available in PMC: 2010 Jul 15.

Published in final edited form as: J Am Chem Soc. 2009 Jul 15;131(27):9571–9578. doi: 10.1021/ja902797j

Table 2.

Sites of photo-crosslinking between the P1 duplex with a 5′-azido group attached and the wild type L-21 ScaI ribozyme reported in the literature¹,³¹.

Species	Location	Complex Giving Cross-link
1	A114	Closed complex
2b	U300	no oligonucleotide substrate
2a	A88	no oligonucleotide substrate, or open complex with oligonucleotide substrate
*		A photoproduct that does not involve the 5′-azido group
**		Aggregation