Cyclic-4 Quartets*

(Not part of higher order structures)

Frequency in different RNA datasets
Sno. Topology Quartet name Geometry XRAY NMR HDRNA NDB
1Cyclic-4* CGCG SSC-WWC-SSC-WWC-> 9 1 2 0
2Cyclic-4* ACGU WSC-WWC-SWC-HHC-> 4 0 0 0
3Cyclic-4* ACGU WSC-WWC-SHC-WHC-> 39 0 2 0
4Cyclic-4* UUUU HWC-HWC-HWC-HWC-> 1 0 1 0
5Cyclic-4* GGGG HWC-HWC-HWC-HWC-> 28 0 16 20