FIG. 2.

Gene arrangement of terminal oxidase complexes in Metallosphaera yellowstonensis (strain MK1). (A) Comparison of the fox terminal oxidase complex between M. yellowstonensis and M. sedula, showing annotation in M. sedula (top) and corresponding genes found in M. yellowstonensis (an additional description is provided in Table 1). foxC is the subject of further analysis and discussion. (B) Gene arrangement of additional terminal oxidase complexes (doxBCEF, doxB-2, soxABC, and the soxM supercomplex) present in M. yellowstonensis. Note: gene arrangements are identical to those in M. sedula. ?, the putative protein function cannot be inferred; TE, transposable element.