Genetic organization of the regions surrounding the galA-E synteny in S. galbus, S. violaceusniger, S. rapamycinicus, and S. niveus.
galA-E and galG-K are indicated by filled arrows, and other genes are indicated by unfilled arrows. The S. galbus gal cluster region (GenBankTM accession number GU300145) is compared with the regions bearing galA-E synteny in the genome sequences (locus tag, GenBankTM accession number) of S. violaceusniger Tü 4113 (Strvi_5006 to Stri_4980, CP002994.1), S. rapamycinicus NRRL 5491 (M271_41420 to M271_41195, CP006557.1), and S. niveus NCIMB 11891 (M877_35370 to M877_35500, CM002280.1). There is no significant homology in the regions flanking galA-E and galG-K among the four Streptomyces genomes.