PDBx/mmCIF
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Data Category emd_map

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General

Category name
emd_map
Required in PDB entries
no
Category group membership
emd_group
Used in current PDB entries
No

Category Relationship Diagrams

70
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Category Description 

    Data items in the EMD_MAP category record parameters of the CCP4 binary-format map file header
    (see ftp://ftp.wwpdb.org/pub/emdb/doc/map_format/EMDB_mapFormat_v1.0.pdf),
    parameters derived from the map header, pixel size, contour level, and annotation details from the depositor.
    The map is a three-dimensional array of data-values of the same data-type.
    Important parameters are data-type and  array size in three dimensions
    (i.e. the number of columns, rows and sections).
    Columns are the fastest changing, followed by rows and sections.

Category Example

View/hide Example 
    _emd_map.id                    1
    _emd_map.annotation_details    'D7 structure of Groel at 4.2 Angstrom resolution'
    _emd_map.format                CCP4
    _emd_map.size_kb               32002
    _emd_map.axis_order_fast       X
    _emd_map.axis_order_medium     Y
    _emd_map.axis_order_slow       Z
    _emd_map.cell_alpha            90.0
    _emd_map.cell_beta             90.0
    _emd_map.cell_gamma            90.0
    _emd_map.cell_a                212.0
    _emd_map.cell_b                212.0
    _emd_map.cell_c                212.0
    _emd_map.data_type             'Image stored as Reals'
    _emd_map.dimensions_col        200
    _emd_map.dimensions_row        200
    _emd_map.dimensions_sec        200
    _emd_map.origin_col            -100
    _emd_map.origin_row            -100
    _emd_map.origin_sec            -100
    _emd_map.pixel_spacing_x       1.06
    _emd_map.pixel_spacing_y       1.06
    _emd_map.pixel_spacing_z       1.06
    _emd_map.symmetry_space_group  1
    _emd_map.spacing_x             200
    _emd_map.spacing_y             200
    _emd_map.spacing_z             200
    _emd_map.statistics_minimum    -0.965912
    _emd_map.statistics_maximum    2.42436
    _emd_map.statistics_average    0.0668982
    _emd_map.statistics_std        0.23771

Key Data Items

Category Data Items

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