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Modified components of RNA. The molecular and crystal structure of 5-carboxymethylaminomethyl-2-thiouridine (S2cmnm5U)

✍ Scribed by Michał W. Wieczorek; Grzegorz D. Bujacz; Dorota A. Adamiak; Andrzej Małkiewicz; Barbara Nawrot

Publisher
John Wiley and Sons
Year
1994
Tongue
English
Weight
690 KB
Volume
5
Category
Article
ISSN
1042-7163

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✦ Synopsis

The structure of the title compound 1 has been determined by X-ray analysis. The following crystal data were found: orthorhombic, P2J2J.?1, a = 5.243(2), b = 24.864(4), and c = 37.083(6) A. Three molecules of the compound with four molecules of water are present in the independent part of the unit cell. The sugar ring puckering is 3E for the molecules A and C and 3T2 for the molecule B. The conformation o f the hydroxymethylene group is g' and g-for B and A, C, respectively. The torsion angles , y for a11 molecules are in the range of the anti conformation. In the crystal lattice of 1 both the intra-and intermolecular hydrogen bonding systems occur.

INTROD UCTI0.N

5-Carboxvmethylaminomethyl-2-thiouridine 1 (s2cmnrn5U) (Figure 1) has been discovered in sev-"To whom correspondence should be addressed.

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