Thx Bob!

Where should these remarks go in the PDB file?

H.

On 11/27/2014 9:20 AM, Robert Hanson wrote:
You are missing the symmetry records. Jmol does not process raw space group names because of all the possible settings.

REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000 0.00000
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000 0.00000
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000 0.00000
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000 0.00000
REMARK 290   SMTRY2   2  0.000000  1.000000  0.000000 9.32500
REMARK 290   SMTRY3   2  0.000000  0.000000 -1.000000 0.00000



On Thu, Nov 27, 2014 at 10:46 AM, Hans Horn <[email protected] <mailto:[email protected]>> wrote:

    Folks,

    I have the following pdb file for an MgCl2 crystal:

    HEADER 09-NOV-11
    TITLE     Structure 1
    REVDAT   1   09-NOV-11         0
    REMARK   4
    REMARK   4      COMPLIES WITH FORMAT V. 2.1, 25-OCT-1996
    HET    UNK  A   1       2
    FORMUL   1  UNK    Mg3 Cl6
    CRYST1   3.596    3.596    17.590  90.00 90.00 120.00 R -3 m      -1
    ORIGX1      1.000000  0.000000 0.000000        0.00000
    ORIGX2      0.000000  1.000000 0.000000        0.00000
    ORIGX3      0.000000  0.000000 1.000000        0.00000
    SCALE1      0.278087  0.160553 -0.000000        0.00000
    SCALE2      0.000000  0.321107 -0.000000        0.00000
    SCALE3      0.000000  0.000000 0.056850        0.00000
HETATM 1 Mg1 UNK 1 0.000 0.000 0.000 1.00 0.00 Mg2+ HETATM 2 Cl1 UNK 2 0.000 0.000 4.535 1.00 0.00 Cl1-
    END

    which claim to have space group 'R -3 m'.

    When I load it into jmol,
    e.g. via  load <pdb name> {1 1 1} packed

    jmol insists that we have 'P 1 [P 1] #1' instead of 'R -3 m' symmetry.

    Somehow the CRYST1 record seems to be parsed incorrectly.
    For all I can tell the pdb file is formatted correctly.

    Thx.,
    Hans

    
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--
Robert M. Hanson
Larson-Anderson Professor of Chemistry
Chair, Department of Chemistry
St. Olaf College
Northfield, MN
http://www.stolaf.edu/people/hansonr


If nature does not answer first what we want,
it is better to take what answer we get.

-- Josiah Willard Gibbs, Lecture XXX, Monday, February 5, 1900



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