%helixes = (
  helix1 => { 
    A  => { x => -1.115,  y => 8.537,  z => 7.075 },
    B  => { x => -2.745,  y => 5.280,  z=> 7.165 },
    ...
  },
  helix2 => {
    K  => { x => -0.696, y => 13.041, z => 22.357 },
    L  => { x => 1.152, y => 11.081, z => 23.082 },
    M  => { x => 2.200, y => 17.590, z => 18.424 },
  },
);