Data Category struct_sheet_topology

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

70
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 Examples

2

 
    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
 
    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