Data Item _pdbx_na_struct_keywds.special_feature
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General 
- Item name
- _pdbx_na_struct_keywds.special_feature
- Category name
- pdbx_na_struct_keywds
- Attribute name
- special_feature
- Required in PDB entries
- no
- Used in current PDB entries
- No
Item Description
Describes special features of NA.
Item Example1
LOOP
Item Example2
LOOPS
Item Example3
INTERNAL LOOP
Item Example4
HAIRPIN LOOP
Item Example5
BULGES
Item Example6
FLIPPED-OUT BASES
Item Example7
STICKY ENDS
Item Example8
OVERHANGING BASES
Item Example9
5'-UU-OVERHANG
Item Example10
CYCLIC
Item Example11
PARALLEL HELIX
Item Example12
CONTINUOUS HELIX
Item Example13
HAMMERHEAD
Item Example14
HAMMERHEAD DNA-RNA RIBOZYME
Item Example15
RNA HAMMERHEAD RIBOZYME
Item Example16
TETRAPLEX
Item Example17
PARALLEL-STRANDED TETRAPLEX
Item Example18
TETRAMERIC AGGREGATE
Item Example19
BASE TRIPLET
Item Example20
INTERMOLECULAR BASE TRIPLET
Item Example21
NICKED
Item Example22
SHIFTED BASE PAIRS
Item Example23
OPEN HELIX
Item Example24
OPEN
Item Example25
CLOSED
Item Example26
BASE INTERCALATED
Item Example27
RACEMATE
Item Example28
A-DNA LIKE CONFORMATION AT TERMINI
Item Example29
Z-DNA STEM
Item Example30
2'-5' PHOSPHODIESTER BOND
Data Type 
- Data type code
- line
- Data type detail
- char item types / multi-word items ...
- Primitive data type code
- char
- Regular expression
- [][ \t_(),.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]*
- Internal data item
- Yes
Aliases
| Alias Item Name | Dictionary Name | Dictionary Version |
|---|---|---|
| _ndb_na_struct_keywds.special_feature | cif_rcsb.dic | 1.1 |