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Jiang Jiangsheng jiang at LAPLACE.CSB.YALE.EDU
Mon Apr 29 12:24:02 EST 1996


SCALE in the PDB header is a matrix which converts
orthogonal (cartesian) coordinates to fractional coordinates.
The calculation of the matrix is only up to the unit cell dimensions.
(have a look at source codes subroutine "XRFRAC" in "rotate.s").

ORIGX is a matrix that describes the relation of your "actual" 

coordinates to the "submitted" one - usually it is the unit matrix.

The later (than 3.1) versions of xplor can produce
the header information that is required by PDB submission.
Please have a look at the X-PLOR WWW page:


The subdirectory "pdb_submission" contains all necessary files
for PDB submission compiled with current formats required by PDB.

Please let me know if you could not access the X-PLOR web page.

Jiansheng Jiang.

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