List of files in the package
 ----------------------------

 ga.for - source code for 'main' and other routines including the routine
          that computes the conservation score for each structure

 gtstr.for - source code for generating the inial population of structures

 mga.for - miscellaneous subroutines

 mutat.for - source code for the mutation operation

 xovr.for - source code for the crossover operation

 gtmseq.for - program to read multiple sequences

 efn.for - program to compute the energy (Zuker's program)

 ergparm - energy parameters

 gtrerg.for - program to compute the average random energy and its standard
              deviation based on the base composition

 cf20, f30, cf50, cf100, and cf150 - empiracal energy coefficients used
                                     by the program gtrerg.for