7.1.1.7	heme	-	741957, 741966, 742621, 743207, 743299, 743792, 743822	
7.1.1.7	heme	heme b558 and the heme b595/heme d complex are likely to be close to each other. All three hemes are predicted to be near the periplasmic surface	727505	
7.1.1.7	heme	the enzyme contains one low-spin haem (b558) and the two high-spin haems (b595 and d) as the redox-active cofactors	743604	
7.1.1.7	heme	two- to threefold increase in cydAB gene expression upon reduction of the pO2 of the growth medium from 21 to 0.5% air saturation with concomitant increase in d-heme absorbance in spectra of membranes isolated from wild-type Mycobacterium smegmatis cultured at 1% air saturation	727738