Data Category pdbx_validate_main_chain_plane
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General 
- Category name
- pdbx_validate_main_chain_plane
- Required in PDB entries
- no
- Category group membership
- pdbx_group validate_group
- Used in current PDB entries
- Yes, in about 4.5 % of entries
Category Relationship Diagrams 
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Category Description
Data items in the PDBX_VALIDATE_MAIN_CHAIN_PLANE category list the
residues that contain unexpected deviations from planes
for main chain atoms as defined by the improper torsion
angle describing planarity:
PLANARITY = C(i-1) - CA(i-1) - N(i) - O(i-1) ==> planar < 5
as a pseudo torsion
Category Example
loop_ _pdbx_validate_main_chain_plane.id _pdbx_validate_main_chain_plane.PDB_model_num _pdbx_validate_main_chain_plane.auth_comp_id _pdbx_validate_main_chain_plane.auth_asym_id _pdbx_validate_main_chain_plane.auth_seq_id _pdbx_validate_main_chain_plane.PDB_ins_code _pdbx_validate_main_chain_plane.improper_torsion_angle 1 0 TRP G 20 . 29.901 2 0 TRP G 21 . -42.450
Key Data Items 
Category Data Items
- _pdbx_validate_main_chain_plane.id
- _pdbx_validate_main_chain_plane.PDB_ins_code
- _pdbx_validate_main_chain_plane.PDB_model_num
- _pdbx_validate_main_chain_plane.auth_asym_id
- _pdbx_validate_main_chain_plane.auth_comp_id
- _pdbx_validate_main_chain_plane.auth_seq_id
- _pdbx_validate_main_chain_plane.improper_torsion_angle
- _pdbx_validate_main_chain_plane.label_alt_id