Codon usage in 87 602 genes has been calculated using the nucleotide s
equence data obtained from the GenBank Genetic Sequence Data Bank (Rel
ease 90.0; September 1995). The database is called the CUTG Database;
the complete form of the database can be obtained by anonymous ftp fro
m DDBJ and a part of the database, which lists the frequency of codon
use in each organism, is made searchable through our World Wide Web se
rver.