## NMR-STAR dictionary: database table: AtomNomenclature

Detailed description of the fields

### _Atom_nomenclature.Atom_ID (AtomID)

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NMR-STAR tag name | _Atom_nomenclature.Atom_ID
Description | NMR-STAR name: _Atom_nomenclature.Atom_ID Pointer to '_Chem_comp_atom.Atom_ID'
Database field name | AtomID
SQL Database type | CHAR(12)
Part of primary Key | yes
Foreign Key on table, column | Chem_comp_atom, Atom_ID
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | yes
Prompt | Atom ID
Examples | ?
Help text |

### _Atom_nomenclature.Atom_name (AtomName)

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NMR-STAR tag name | _Atom_nomenclature.Atom_name
Description | NMR-STAR name: _Atom_nomenclature.Atom_name Alternate atom name defined by an organization or official body.
Database field name | AtomName
SQL Database type | VARCHAR(15)
Part of primary Key | no
Foreign Key on table, column | ,
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | yes
Prompt | Naming system atom name
Examples | ?
Help text |

### _Atom_nomenclature.Naming_system (NamingSystem)

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NMR-STAR tag name | _Atom_nomenclature.Naming_system
Description | NMR-STAR name: _Atom_nomenclature.Naming_system The name of the systematic atom nomenclature.
Database field name | NamingSystem
SQL Database type | VARCHAR(127)
Part of primary Key | no
Foreign Key on table, column | ,
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | no
Prompt | Naming system
Examples | ?
Help text |

### _Atom_nomenclature.Sf_ID (SfID)

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NMR-STAR tag name | _Atom_nomenclature.Sf_ID
Description | NMR-STAR name: _Atom_nomenclature.Sf_ID Pointer to '_Chem_comp.Sf_ID'
Database field name | SfID
SQL Database type | INTEGER
Part of primary Key | no
Foreign Key on table, column | Chem_comp, Sf_ID
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | yes This field's data is for internal use only and should be hidden in public versiond of the data.
Nulls allowed in database? | yes
Prompt | Sf ID
Examples | ?
Help text |

### _Atom_nomenclature.Entry_ID (EntryID)

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NMR-STAR tag name | _Atom_nomenclature.Entry_ID
Description | NMR-STAR name: _Atom_nomenclature.Entry_ID Pointer to '_Entry.ID'
Database field name | EntryID
SQL Database type | CHAR(12)
Part of primary Key | yes
Foreign Key on table, column | Chem_comp, Entry_ID
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | yes
Prompt | Entry ID
Examples | ?
Help text |

### _Atom_nomenclature.Comp_ID (CompID)

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NMR-STAR tag name | _Atom_nomenclature.Comp_ID
Description | NMR-STAR name: _Atom_nomenclature.Comp_ID Pointer to '_Chem_comp.ID'
Database field name | CompID
SQL Database type | CHAR(12)
Part of primary Key | yes
Foreign Key on table, column | Chem_comp, ID
Saveframe ID | no
Row Index | no
Secondary Index | no
Internal Flag | no
Nulls allowed in database? | yes
Prompt | Comp ID
Examples | ?
Help text |