Skip to main content

Table 3 Expectation and variance of important parameters related to particular structural motifs of RNA secondary structure

From: Random generation of RNA secondary structures according to native distributions

Parameter Expected Value Variance
  Random Native Random Native
numunp 848.179 839.956 98964.7 103426.
numbps 420.848 424.96 27785.3 31310.9
numurs 179.73 181.822 4959.96 5117.47
nume 1. 1. 0. 0.
numh 36.6983 36.4818 196.935 185.596
nums 321.18 324.26 16538.8 19343.4
numb 20.6061 20.5782 87.1894 50.3103
numi 26.1442 26.538 125.66 194.769
numm 16.2197 17.1018 57.8874 41.0261
numhel 99.6683 100.7 1549.24 1492.84
unpe 106.014 79.8382 4039.69 3897.61
unph 6.93534 6.93188 18.4264 77.464
unps -- -- -- --
unpb 1.9948 1.99596 3.10283 6.87868
unpi 7.14617 7.08869 16.5725 31.1197
unpm 16.0122 16.2577 87.4906 195.497
unphel -- -- -- --
bpse 9.41479 6.94105 29.1956 6.30949
bpsh -- -- -- --
bpss 1. 1. 0. 0.
bpsb 1. 1. 0. 0.
bpsi 1. 1. 0. 0.
bpsm 2.68212 2.72734 1.12921 1.21643
bpshel 4.22249 4.22006 13.6266 5.52299
  1. Values are derived from a native sample (our biological database) and from a random sample, respectively. num x denotes the number of occurrences of motif x in one secondary structure and unp x (bps x ) denotes the number of accessible unpaired bases (base pairs) in one substructure of type x. unp, bps, urs denote unpaired bases, base pairs and unpaired regions, whereas e, h, s, b, i, m, hel denote exterior loop, hairpin loop, stacked pair, bulge loop, interior loop, multiloop and helix, respectively.