KEGG Database Entry Format

kegg3 logo KEGG Database Entry Format

The KEGG database is developed and maintained internally in a relational database, but it is distributed in the flat-file format where the database is considered as a collection of entries. This document describes the database entry field names in the web page and the corresponding flat file. It also summarizes the fields searched by DBGET.

Database Entry Fields

The content of each field is described in the link from "Web page".

PATHWAY

Flat file

Entry ENTRY

Name NAME

Description DESCRIPTION

Class CLASS

Pathway map PATHWAY_MAP

Module MODULE

Network NETWORK

Element ELEMENT

Disease DISEASE

Drug DRUG

Other DBs DBLINKS

Organism ORGANISM

Orthology ORTHOLOGY

Gene GENE

Enzyme ENZYME

Reaction REACTION

Compound COMPOUND

Reference REFERENCE

Authors AUTHORS

Title TITLE

Journal JOURNAL

Related pathway REL_PATHWAY

KO pathway KO_PATHWAY

BRITE

Flat file

Entry ENTRY

Name NAME

Class CLASS

Hierarchy
Table HIERARCHY
TABLE

Other DBs DBLINKS

Reference REFERENCE

Authors AUTHORS

Title TITLE

Journal JOURNAL

MODULE

Flat file

Entry ENTRY (for M entry)

Name NAME

Definition DEFINITION

Diagram -

Orthology ORTHOLOGY

Class CLASS

Pathway PATHWAY

Brite BRITE

Reaction REACTION

Compound COMPOUND

RModule RMODULE

Comment COMMENT

Other DBs DBLINKS

Reference REFERENCE

Authors AUTHORS

Title TITLE

Journal JOURNAL

Entry ENTRY (for RM enty)

Name NAME

Definition DEFINITION

Class CLASS

GROUP Group

MODULE Module

KO

Flat file

Entry ENTRY

Symbol SYMBOL

Name NAME

Pathway PATHWAY

Module MODULE

Network NETWORK

Element ELEMENT

Disease DISEASE

Brite BRITE

Other DBs DBLINKS

Genes GENES

Reference REFERENCE

Authors AUTHORS

Title TITLE

Journal JOURNAL

Sequence SEQUENCE

GENES

Flat file

Entry ENTRY

Symbol SYMBOL

Name NAME

KO ORTHOLOGY

Organism
Virus ORGANISM
VIRUS

Pathway PATHWAY

Module MODULE

Network NETWORK

Element ELEMENT

Disease DISEASE

Drug target DRUG_TARGET

Brite BRITE

SSDB -

Motif MOTIF

Other DBs DBLINKS

Position POSITION

AA seq AASEQ

NT seq NTSEQ

GENOME

Flat file

Entry ENTRY (for T entry)

Org code ORG_CODE

Name NAME

Category CATEGORY

Annotation ANNOTATION

Taxonomy TAXONOMY

Lineage LINEAGE

Data source DATA_SOURCE

Original DB ORIGINAL_DB

Keywords KEYWORDS

Disease DISEASE

Comment COMMENT

Chromosome CHROMOSOME

Plasmid PLASMID

Statistics STATISTICS

Other DBs DBLINKS

Reference REFERENCE

Authors AUTHORS

Title TITLE

Journal JOURNAL

Entry ENTRY (for T4 entry)

Name NAME

Vtax VTAX

Taxonomy TAXONOMY

Lineage LINEAGE

Sequence SEQUENCE

Disease DISEASE

Host HOST

Reservoir RESERVOIR

Other DBs DBLINKS

Reference REFERENCE

Authors AUTHORS

Title TITLE

Journal JOURNAL

Entry ENTRY (for Vtax entry)

Name NAME

Gn GN

Taxonomy TAXONOMY

Lineage LINEAGE

Sequence SEQUENCE

Other DBs DBLINKS

Gene GENE

Pept PEPT

COMPOUND

Flat file

Entry ENTRY

Name NAME

Formula FORMULA

Exact mass EXACT_MASS

Mol weight MOL_WEIGHT

Structure (gif image)

Sequence SEQUENCE

Remark REMARK

Comment COMMENT

Reaction REACTION

Pathway PATHWAY

Module MODULE

Enzyme ENZYME

Brite BRITE

Reference REFERENCE

Other DBs DBLINKS

KCF data ATOM / BOND / BRACKET

GLYCAN

Flat file

Entry ENTRY

Name NAME

Composition COMPOSITION

Mass MASS

Structure (gif image)

Remark REMARK

Comment COMMENT

Reaction REACTION

Pathway PATHWAY

Module MODULE

Enzyme ENZYME

Orthology ORTHOLOGY

Brite BRITE

Reference REFERENCE

Other DBs DBLINKS

KCF data NODE / EDGE / BRACKET

REACTION

Flat file

Entry ENTRY

Name NAME

Definition DEFINITION

Equation EQUATION

(blank) (gif image)

Remark REMARK

Comment COMMENT

Reaction class RCLASS

Enzyme ENZYME

Pathway PATHWAY

Orthology ORTHOLOGY

Reference REFERENCE

RCLASS

Flat file

Entry ENTRY

Definition DEFINITION

(blank) (gif image)

Reactant pair RPAIR

Related class -

Reaction REACTION

Enzyme ENZYME

Pathway PATHWAY

Orthology ORTHOLOGY

ENZYME

Flat file

Entry ENTRY

Name NAME

Class CLASS

Sysname SYSNAME

Reaction(IUBMB) REACTION

Reaction(KEGG) ALL_REAC

Substrate SUBSTRATE

Product PRODUCT

Comment COMMENT

Pathway PATHWAY

Orthology ORTHOLOGY

Genes GENES

Reference REFERENCE

Authors AUTHORS

Title TITLE

Journal JOURNAL

Sequence SEQUENCE

Other DBs DBLINKS

NETWORK

Flat file

Entry ENTRY (for N entry)

Name NAME

Definition DEFINITION

Expanded EXPANDED

Class CLASS

Type TYPE

Pathway PATHWAY

Disease DISEASE

Gene GENE

Variant VARIANT

Perturbant PERTURBANT

Metabolite METABOLITE

Reference REFERENCE

Authors AUTHORS

Title TITLE

Journal JOURNAL

Entry ENTRY (for nt entry)

Name NAME

Category CATEGORY

Map MAP

Disease DISEASE

Other DBs DBLINKS

Member MEMBER

VARIANT

Flat file

Entry ENTRY

Name NAME

Gene GENE

Organism ORGANISM

Variation VARIATION

Network NETWORK

Drug target DRUG_TARGET

Reference REFERENCE

Authors AUTHORS

Title TITLE

Journal JOURNAL

DISEASE

Flat file

Entry ENTRY

Name NAME

Description DESCRIPTION

Category CATEGORY

Brite BRITE

Disease pathway DIS_PATHWAY

Pathway PATHWAY

Network NETWORK

Gene GENE

Pathogen PATHOGEN

Drug DRUG

Comment COMMENT

Other DBs DBLINKS

Reference REFERENCE

Authors AUTHORS

Title TITLE

Journal JOURNAL

DRUG

Flat file

Entry ENTRY

Name NAME

Abbr ABBR

Product PRODUCT

Formula FORMULA

Exact mass EXACT_MASS

Mol weight MOL_WEIGHT

Structure (gif image)

Simcomp -

Component COMPONENT

Sequence SEQUENCE

Type TYPE

Source SOURCE

Class CLASS

Remark REMARK

Efficacy EFFICACY

Disease DISEASE

Type TYPE

Comment COMMENT

Target TARGET

Network NETWORK

Pathway PATHWAY

Metabolism METABOLISM

Interaction INTERACTION

Biosynthesis SYN_MAP

Structure map STR_MAP

Other map OTHER_MAP

Brite BRITE

Other DBs DBLINKS

KCF data ATOM / BOND / BRACKET

DGROUP

Flat file

Entry ENTRY

Name NAME

Abbr ABBR

Stem STEM

Type TYPE

Structure (gif image)

Member MEMBER

Class CLASS

Remark REMARK

Comment COMMENT

DBGET Search Fields

DBGET has been developed as the backbone retrieval system for the GenomeNet and KEGG services (see the history of development). It is based on a flat-file view of molecular biology databases, where the database is considered as a collection of entries. The keyword search is performed against the following fields.

Database name Abbre-
viation Search fields

kegg pathway path ENTRY, NAME

brite br ENTRY, NAME

module md ENTRY, NAME

orthology ko ENTRY, SYMBOL, NAME

genes <org> ENTRY, SYMBOL, NAME, KO

genome gn ENTRY, ORG_CODE, NAME

compound cpd ENTRY, NAME

glycan gl ENTRY, NAME, COMPOSITION

reaction rn ENTRY, NAME, DEFINITION

rclass rc ENTRY, NAME, DEFINITION

enzyme ec ENTRY, NAME

network ne ENTRY, NAME

variant hsa_var ENTRY, NAME

disease ds ENTRY, NAME

drug dr ENTRY, NAME

dgroup dg ENTRY, NAME

Last updated: January 1, 2024