The field codes found in a PROSITE flat file help to arrange the information for human readability and machine-based parsing. There are several PROSITE field codes found in an entry; each is represented with a two-letter abbreviation. Table 5-1 provides definitions and descriptions of these field codes.
Table 5-1. PROSITE field definitions
| Field | Definition | Description |
| ID | Identification | The second item indicates the type of entry: - PATTERN
- MATRIX
- RULE
|
| AC | Accession number | PSnnnnn. |
| DT | Date | Date of entry or last modification of the entry. |
| DE | Short description | Descriptive information about the entry content. |
| PA | Pattern | The definition of a PROSITE pattern. |
| MA | Matrix/profile | The definition of a PROSITE profile/matrix. |
| RU | Rule | The definition of a PROSITE rule. |
| NR | Numerical results | This contain information relevant to the results of the scan with a pattern on the complete SWISS-PROT knowledgebase. The following qualifiers are used: - /RELEASE
- /TOTAL
- /POSITIVE
- /UNKNOWN
- /FALSE_POS
- /FALSE_NEG
- /PARTIAL
|
| CC | Comments | Various types of comments. The following qualifiers are used. - /TAXO-RANGE
- /MAX-REPEAT
- /SITE
- /SKIP-FLAG
- /MATRIX_TYPE
- /SCALING_DB
- /AUTHOR
- /FT_KEY
- /FT_DESC
|
| DR | Cross-references to SWISS-PROT | These are used as pointers to SWISS-PROT entries. |
| 3D | Cross-references to PDB | These are used to list the Protein Data Bank entries. |
| DO | Pointer to the documentation file | This contains a pointer to the entry in the PROSITE documentation file that describes the entry. |
| // | Termination line | This designates the end of an entry. |