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. 2008 Apr 4;74(11):3559–3572. doi: 10.1128/AEM.02722-07

FIG. 1.

FIG. 1.

Multiple copies of the amo and hao gene clusters. Repeat regions of amo and hao clusters with near 100% identity are shown on the same background color. Selected putative promoters and terminators are shown. Gene clusters include amo operon copies 1 and 2 duplicate regions containing amoCAB, orf4, orf5, copC, and copD; amo/hao ammonia catabolic supercluster; and Nmul_A0177 (amoC) identical copy and Nmul_A2467 amoC divergent copy. Nmul_A0805, Nmul_A1082, and Nmul_A2622 encode hydroxylamine oxidoreductase. Nmul_A0804, Nmul_A1083, and Nmul_A2661 encode the Orf2 protein. Nmul_A0803, Nmul_A1084, and Nmul_A2660 (cycA) encode cytochrome C-554. Nmul_A0802, Nmul_A1085, and Nmul_A2659 (cycB) encode tetraheme cytochrome Cm552. Nmul_A2663 (focA) encodes a formate nitrite transporter. See text for additional discussion and reference 2 for more details of gene nomenclature.