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. 2011 Oct 4;2(5):e00214-11. doi: 10.1128/mBio.00214-11

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Copyright © 2011 Bandyopadhyay et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported License, which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original author and source are credited.

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FIG 4 — Alignment of clusters of nitrogen fixation-related genes in the six Cyanothece strains and in five other sequenced anaerobic nitrogen-fixing strains. The cluster in Cyanothece 7425 is significantly different from the clusters in the other Cyanothece strains, with a 2.5-Mbp insertion between nifK and nifN. The nifVZT regulon also shows an inversion similar to sequences in two other Synechococcus strains (Synechococcus JA-3-3Ab and Synechococcus JA-2-3B). In Oscillatoria sp. 6506, the nifE and nifN genes are pseudogenes, shown in white. Microcoleus has a shorter cluster with nifB translocated next to nifN. Synechococcus 7335 has a 50-kbp insertion between nifV and nifB and has nifZ translocated between nifK and nifE.