Data Category struct_sheet_topology
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General 
- Category name
- struct_sheet_topology
- Required in PDB entries
- no
- Category group membership
- struct_group
- Used in current PDB entries
- No
Category Relationship Diagrams 
View full category relationship diagram including all dictionary data categories
Category Description
Data items in the STRUCT_SHEET_TOPOLOGY category record details
about the topology of the residue ranges that form a beta-sheet.
All topology links are pairwise and the specified pairs are
assumed to be successive in the amino-acid sequence. These
data items are useful in describing various simple and complex
folds, but they become inadequate when the strands in the sheet
come from more than one chain. The
STRUCT_SHEET_ORDER data items can be used to describe
single- and multiple-chain-containing sheets.
Category Example1
loop_
_struct_sheet_topology.sheet_id
_struct_sheet_topology.range_id_1
_struct_sheet_topology.range_id_2
_struct_sheet_topology.offset
_struct_sheet_topology.sense
sheet_1 strand_a strand_b +1 parallel
sheet_1 strand_b strand_c +1 parallel
sheet_1 strand_c strand_d +1 parallel
sheet_1 strand_d strand_e +1 parallel
sheet_1 strand_e strand_f +1 parallel
sheet_1 strand_f strand_g +1 parallel
sheet_1 strand_g strand_h +1 parallel
sheet_1 strand_h strand_a +1 parallel
Category Example2
loop_
_struct_sheet_topology.sheet_id
_struct_sheet_topology.range_id_1
_struct_sheet_topology.range_id_2
_struct_sheet_topology.offset
_struct_sheet_topology.sense
sheet_2 strand_a strand_c +2 anti-parallel
sheet_2 strand_c strand_d1 +1 anti-parallel
sheet_2 strand_d1 strand_e +1 anti-parallel
sheet_2 strand_e strand_d2 -1 anti-parallel
sheet_2 strand_d2 strand_b -2 anti-parallel
