| PARP1 | poly(ADP-ribose)polymerase 1 |
| PAR | poly(ADP-ribose) |
| MD | molecular dynamics |
| FRET | Förster resonance energy transfer |
| spFRET | single particle Förster resonance energy transfer |
| EMSA | electrophoretic mobility shift assay |
| Cy3 and Cy5 | fluorescent dyes cyanine 3 and cyanine 5 |
| EPR | proximity ratio (FRET efficiency without correction for detection sensitivity and quantum yields of fluorophores) |
| LN_P, LN_M, LN_D | nucleosomes with one 20 bp linker labeled with Cy3/Cy5 at positions 13/91 bp, 35/112 bp or 57/135 bp, respectively |
| CN_P, CN_M, CN_D | core nucleosomes labeled with Cy3/Cy5 at positions 13/91 bp, 35/112 bp or 57/135 bp, respectively |
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