Basepairs involving Sugar edge of Adenine and Sugar edge of Guanine

Basepairs involving Sugar(S) edge of Adenine and Sugar(S) edge of Guanine 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
A:G S:S Cis	35/ 5	Residue Nos. 1839(0)-2642(0) PDB ID 3CME	C5-N3...N2-N1 C8-O2'...N3-C6

Basepair

(type & Orientation)

*Frequency

Example

Hydrogen bonding atoms with their precursors

A:G S:S Cis

35/
5

Residue Nos. 1839(0)-2642(0) PDB ID 3CME

C5-N3...N2-N1

C8-O2'...N3-C6

Base pairs stabilized by C-H...N/O interactions along with N-H...N/O hydrogen bonds

Basepair (type & Orientation)	*Frequency	Example	Hydrogen bonding atoms with their precursors
A:G s:s Trans	289/ 38	Residue Nos. 243(0)-274(0) PDB ID 1VQO	C5-N3...N2-N1 C5-C2...N3-C5
A:G s:s Cis	40	Residue Nos. 1865(0)-1468(0) PDB ID 1VQO	C5-N3...C2-C4 C8-O2'...N3-C5

Basepair

(type & Orientation)

*Frequency

Example

Hydrogen bonding atoms with their precursors

A:G s:s Trans

289/
38

Residue Nos. 243(0)-274(0) PDB ID 1VQO

C5-N3...N2-N1

C5-C2...N3-C5

A:G s:s Cis

Residue Nos. 1865(0)-1468(0) PDB ID 1VQO

C5-N3...C2-C4

C8-O2'...N3-C5