Data Item _pdbx_dcc_density.mean_E2_1

Value of <|E^{2 - 1|> calculated by Xtriage using acentric
reflections.(untwinned: 0.736; perfect twin 0.541).}

Data type code: float
Data type detail: float item types are the subset of numbers that are the floating numbers.
Primitive data type code: numb
Regular expression: -?(([0-9]+)[.]?|([0-9]*[.][0-9]+))([(][0-9]+[)])?([eE][+-]?[0-9]+)?

Data Item _pdbx_dcc_density.mean_E2_1_abs