PDBx/mmCIF
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Data Category em_map

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General

Category name
em_map
Required in PDB entries
no
Category group membership
emdb_admin_group
Used in current PDB entries
No
Used internally by PDB
Yes

Category Relationship Diagrams

70
View full category relationship diagram including all dictionary data categories

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

Key Data Items

Category Data Items

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