Table 2. The data content of the GENES database entry.

Field	Content	Links	Data source
ENTRY	Entry identifier (gene accession number)	LinkDB database	GenBank or original database
NAME	Gene names and alternative names		GenBank or original database
DEFINITION	Annotation of gene function	LIGAND/ENZYME database, SWISS-PROT database and PubMed database	GenBank, original database, SWISS-PROT and KEGG
CLASS	Classification of genes according to the KEGG pathways	KEGG/PATHWAY database	KEGG
POSITION	Chromosomal position	KEGG/GENOME map	GenBank
DBLINKS	Outside links	Original databases and NCBI Entrez database
CODON_USAGE	Codon usage		Computed
AASEQ	Amino acid sequence	see footnotea	GenBank or original database
NTSEQ	Nucleotide sequence		GenBank or original database

^aComputational links are available including sequence similarity searches (FASTA and BLAST), motif search (MOTIF), membrane protein predictions (SOSUI and TSEG), and cellular localization site prediction (PSORT).