SPREAD is a FORTRAN77 program which reads a sequence form a SWISS-PROT database file and locates the tyrosine residues.
SPREAD is available in a FORTRAN77 version.
PS_GG_ALIGN, a FORTRAN90 library which implements a profile/sequence global alignment using an affine gap penalty.
PS_LG_ALIGN, a FORTRAN90 library which implements a profile/sequence local alignment using an affine gap penalty.
PS_QG_ALIGN, a FORTRAN90 library which implements a profile/sequence quasiglobal alignment using an affine gap penalty.
READ_ALIGN, a FORTRAN77 program which extracts data from a multiple alignment file for sequences and writes the data to a file suitable for input to DISTANCES.
SPACER, a FORTRAN77 program which reads a file containing a distance matrix and performs a principal component analysis.
SS_GD_ALIGN, a FORTRAN90 library which globally aligns two sequences using a distance matrix.
SS_GG_ALIGN, a FORTRAN90 library which globally aligns two sequences using an affine gap penalty.
SS_LG_ALIGN, a FORTRAN90 library which locally aligns two sequences using an affine gap penalty.
SS_QG_ALIGN, a FORTRAN90 library which quasi-globally aligns two sequences using an affine gap penalty.
You can go up one level to the FORTRAN77 source codes.