Seven GC-rich microbial genomes adopt similar codon usage patterns regardless of their phylogenetic lineages.

Analysis of nucleotide distribution in the genome of Streptomyces coelicolor A3(2) using the Z curve method.

The Z curve database: a graphic representation of genome sequences.

Multiple replication origins of the archaeon Halobacterium species NRC-1.

ZCURVE: a new system for recognizing protein-coding genes in bacterial and archaeal genomes.