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- Publisher
- Wiley
- Copyright
- Copyright © 1971 John Wiley & Sons, Inc.
- ISSN
- 0006-3525
- eISSN
- 1097-0282
- DOI
- 10.1002/bip.360100909
- pmid
- 5126125
- Publisher site
- See Article on Publisher Site
Abstract
Photoreduction with NaBH4 was used to reduce the dinucleoside phosphates ApU, UpA, and GpU to the corresponding molecules containing dihydrouridine (H). Also obtained from this reaction are dinucleoside phosphates containing (β‐N‐ribosyl) ureido‐propanol, an open ring form of dihydrouridine. The results of CD and ultraviolet absorption studies with these compounds imply that HpA is strongly stacked, but that ApH and GpH are only slightly stacked. The temperature dependence of the CD suggests that the stacking in HpA is unusual. The results with compounds containing open ring forms of dihydrouridine indicate that there is more intramolecular interaction when the ring is open than when it is closed.
Journal
Biopolymers – Wiley
Published: Sep 1, 1971