PDBx/mmCIF
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Data Category em_entity_assembly

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General

Category name
em_entity_assembly
Required in PDB entries
no
Category group membership
em_group  em_sample_description_group
Used in current PDB entries
Yes, in about 3.3 % of entries

Category Relationship Diagrams

70
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70
View abbreviated category relationship diagram including only those categories used in current PDB entries.

Category Description 

     The EM_ENTITY_ASSEMBLY category defines a hierarchy-independent 
     list of assemblies relevant to the EM experiment.
     
     The recommended convention is that the imaged assembly, defined 
     in the category EM_ASSEMBLY, is listed first.
 
     Components, arrays and superstructures of the assembly  
     are also described. 
   
     The hierarchy independence enables descriptions of
     symmetry, sample preparation, particle selection, and map masks
     at multiple levels.

Category Examples

2

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Category Example1

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 loop_
_em_entity_assembly.id  		
_em_entity_assembly.assembly_id
_em_entity_assembly.type 
_em_entity_assembly.symmetry_type       	
_em_entity_assembly.name  	
1 1 'COMPLEX ASSEMBLY' 'point symmetry' 'poliovirus-CD155 complex' 
2 1 VIRUS 'point symmetry' 'poliovirus' 
3 1 PROTEIN 'asymmetric' 'CD155 receptor'

Category Example2

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 loop_
_em_entity_assembly.id  		
_em_entity_assembly.assembly_id     
_em_entity_assembly.type 
_em_entity_assembly.symmetry_type       	
_em_entity_assembly.name       	
1 1 PROTEIN 'asymmetric' 'acetylcholine receptor' 
2 1 MEMBRANE . 'torpedo post-synaptic membrane' 
3 1 ARRAY    'helical' 'helical crystal'

Key Data Items

Category Data Items

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