Fig. 3: Cofactor organization in Msm cytochrome bd.
From: Cryo-EM structure of mycobacterial cytochrome bd reveals two oxygen access channels
a Triangular arrangement of the heme cofactors in CydA. Heme edge-to-edge distances are indicated by numbers in the parentheses. b Axial amino acid ligands of the heme cofactors. c Heme superposition between E. coli, G. th, and Msm. d The superimposed heme d sites from Msm and E. coli.
