PMC:1459172 / 8213-8789 JSONTXT

{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/1459172","sourcedb":"PMC","sourceid":"1459172","source_url":"https://www.ncbi.nlm.nih.gov/pmc/1459172","text":"where ℓ1 is the length of the unpaired strand between i and k and ℓ2 is the length of the unpaired strand between l and j. Symmetry of the energy model dictates (i, j; k, l) = (l, k; j, i). If ℓ1 = ℓ2 = 0 we have a (stabilizing) stacked pair, if only one of ℓ1 and ℓ2 vanish we have a bulge. For multiloops, finally we have an additive energy model of the form = a + b × β + c × ℓ where ℓ is the length of multiloop (again expressed as the number of unpaired nucleotides) and β is the number of branches, not counting the branch in which the closing pair of the loop resides.","tracks":[]}