message: changed nucleic trace atom to O3'
diff: @@ -118,7 +118,7 @@ export const PolymerTypeAtomRoleId: { [k in PolymerType]: { [k in AtomRole]: Set
  coarseBackbone: new Set(['CA'])
  },
  [PolymerType.RNA]: {
  - trace: new Set(['C4\'', 'C4*']),
  + trace: new Set(['O3\'', 'O3*']),
  directionFrom: new Set(['C4\'', 'C4*']),
  directionTo: new Set(['C3\'', 'C3*']),
  backboneStart: new Set(['P']),
  @@ -126,7 +126,7 @@ export const PolymerTypeAtomRoleId: { [k in PolymerType]: { [k in AtomRole]: Set
  coarseBackbone: new Set(['P'])
  },
  [PolymerType.DNA]: {
  - trace: new Set(['C3\'', 'C3*']),
  + trace: new Set(['O3\'', 'O3*']),
  directionFrom: new Set(['C3\'', 'C3*']),
  directionTo: new Set(['C1\'', 'C1*']),
  backboneStart: new Set(['P']),
  