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. 2004 Sep 30;32(17):5147–5162. doi: 10.1093/nar/gkh785

Table 2. Partition of hydrogen bonds between nucleic acid and proteins among different types of hydrogen-bond donors and acceptors.

RNA/DNA   Protein   Number (3445)
Donor na_NH Acceptor aa_sc_sp2 284
      aa_sc_sp3 51
      aa_bb_O 174
Acceptor na_P Donor aa_sc_NH 1167
      aa_bb_NH 672
  na_O   aa_sc_NH 238
      aa_bb_NH 80
  na_base_O   aa_sc_NH 352
      aa_bb_NH 94
  na_base_N   aa_sc_NH 289
      aa_bb_NH 44