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RELEASE NOTES (Beta Version IT5.4)

This beta version of 'rna_2d3d' differs from that
of 'IT5.3' primarily in how RNA tecto structures
are modeled.  Instead of using four additional model
arrays (C,D,E and F), only the C array is used.  The 
model C array contains all the monomers of a proposed
RNA tecto structure whose definition is specified via
a monomer pairing file.  Invocation of this file automatically
results in the 3D construction of the structure.  This
is analogous to the invocation of a BPL file which
automatically results in the construction of a 2D and
3D version of the primary structure of an RNA monomer
defined by a BPL file. The user is thus relieved of
several awkward interactive construction steps required in the
previous version.

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