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Index

Macromolecular dictionary (mmCIF) version 2.0.09

Category STRUCT_SHEET

Name:
'struct_sheet'

Description:

   Data items in the STRUCT_SHEET category record details about
   the beta-sheets.

Examples:

Example 1 - simple beta-barrel.
.

N  O    N  O    N  O    N  O    N  O    N  O
 10--11--12--13--14--15--16--17--18--19--20  strand_a
    N  O    N  O    N  O    N  O    N  O
    /  \    /  \    /  \    /  \    /  \
N  O    N  O    N  O    N  O    N  O    N  O
 30--31--32--33--34--35--36--37--38--39--40  strand_b
    N  O    N  O    N  O    N  O    N  O
    /  \    /  \    /  \    /  \    /  \
N  O    N  O    N  O    N  O    N  O    N  O
 50--51--52--53--54--55--56--57--58--59--60  strand_c
    N  O    N  O    N  O    N  O    N  O
    /  \    /  \    /  \    /  \    /  \
N  O    N  O    N  O    N  O    N  O    N  O
 70--71--72--73--74--75--76--77--78--79--80  strand_d
    N  O    N  O    N  O    N  O    N  O
    /  \    /  \    /  \    /  \    /  \
N  O    N  O    N  O    N  O    N  O    N  O
 90--91--92--93--94--95--96--97--98--99-100  strand_e
    N  O    N  O    N  O    N  O    N  O
    /  \    /  \    /  \    /  \    /  \
N  O    N  O    N  O    N  O    N  O    N  O
110-111-112-113-114-115-116-117-118-119-120  strand_f
    N  O    N  O    N  O    N  O    N  O
    /  \    /  \    /  \    /  \    /  \
N  O    N  O    N  O    N  O    N  O    N  O
130-131-132-133-134-135-136-137-138-139-140  strand_g
     N  O    N  O    N  O    N  O    N  O
   /  \    /  \    /  \    /  \    /  \
N  O    N  O    N  O    N  O    N  O    N  O
150-151-152-153-154-155-156-157-158-159-160  strand_h
     N  O    N  O    N  O    N  O    N  O
   /  \    /  \    /  \    /  \    /  \


 
    _struct_sheet.id                sheet_1
    _struct_sheet.type             'beta-barrel'
    _struct_sheet.number_strands    8
    _struct_sheet.details           .



Example 2 - five stranded mixed-sense sheet with one two-piece strand.
.

      N  O    N  O    N  O    N  O
  -10--11--12--13--14--15--16--17--18->  strand_a
  N  O    N  O    N  O    N  O    N  O
  |  |    |  |    |  |    |  |    |  |
  O  N    O  N    O  N    O  N    O  N
<-119-118-117-116-115-114-113-112-111-110-  strand_b
      O  N    O  N    O  N    O  N    O  N
          \  /   \   /   \   /   \   /   \
          O  N    O  N    O  N    O  N    O  N    O  N
         <-41--40--39--38--37--36--35--34--33--32--31--30-  strand_c
              O  N    O  N    O  N    O  N    O  N    O  N
              |  |    |  |    |  |    |  |    |  |    |  |
              N  O    N  O    N  O    N  O    N  O    N  O
   strand_d1  -50--51--52->   -90--91--92--93--95--95--96--97->  strand_d2
                  N  O            N  O    N  O    N  O    N  O
                  |  |    |  |    |  |    |  |    |  |    |  |
                  O  N    O  N    O  N    O  N    O  N    O  N
                 <-80--79--78--77--76--75--74--73--72--71--70-   strand_e
                      O  N    O  N    O  N    O  N    O  N


 
    _struct_sheet.id                sheet_2
    _struct_sheet.type             'five stranded, mixed-sense'
    _struct_sheet.number_strands    5
    _struct_sheet.details          'strand_d is in two pieces'



Category groups:
    inclusive_group
    struct_group
Category key:
    _struct_sheet.id

Mandatory category: no