Extended Data Fig. 10: Phylogenetic trees of proteins involved in sulfate reduction (CysD, CysNC) and cysteine biosynthesis (CysE) present in HVR2 of F. medardense ME-20.
From: Ecophysiology and global dispersal of the freshwater SAR11-IIIb genus Fontibacterium
a. Phylogenetic tree of O-acetylhomoserine (thiol)-lyase CysD including 100 closely related protein sequences. b. Phylogenetic tree of sulfate adenylyltransferase CysNC including 100 closely related protein sequences. c. Phylogenetic tree of serine O-acetyltransferase CysE including 100 closely related protein sequences. Accession numbers are colour-coded by taxonomy and collapsed at order level. The habitat of origin of ‘Ca. Pelagibacterales’ is indicated by different colours.
