Basepairs involving WatsonCrick edge of Guanine and WatsonCrick edge of Uracil

Basepairs involving WatsonCrick(W) edge of Guanine and WatsonCrick(W) edge of Uracil is shown. Highlighted examples are found from RNA crystal structures obtained from PDB.

Base pairs stabilized by N-H...N/O type hydrogen bonds only

Basepair (type & Orientation)	*Frequency	Example	Hydrogen bonding atoms with their precursors
G:U W:W Cis	847/ 39	Residue Nos. 2404(0)-2384(0) PDB ID 3CME	N7-O6...N3-C6 N9-N1...O2-C1'
G:U W:W Trans	4	Optimized Model Structure	N9-N1...O4-C5 N7-O6...N3-C6

Basepair

(type & Orientation)

*Frequency

Example

Hydrogen bonding atoms with their precursors

G:U W:W Cis

847/
39

Residue Nos. 2404(0)-2384(0) PDB ID 3CME

N7-O6...N3-C6

N9-N1...O2-C1'

G:U W:W Trans

Optimized Model Structure

N9-N1...O4-C5

N7-O6...N3-C6