(A) sp

strain PCC 7120, (B) ATCC 29413, (C) PCC 73102, (D) CCY9414, (E) CCAP 1446/4, and (F) IMS101. The putative maturation genes of the small subunit of the uptake hydrogenase are located in close vicinity to the structural genes, , and often in between and the -genes. In IMS101 and the putative maturation genes are separated from the -gene cluster by approximately 3.8 Mb. *Indicates the N end fragment of the (5'), as annotated in vegetative cells.Copyright information:Taken from "Transcription of the extended -operon in sp. strain PCC 7120"http://www.biomedcentral.com/1471-2180/8/69BMC Microbiology 2008;8():69-69.Published online 28 Apr 2008PMCID:PMC2408588.