V. radiata homologues were obtained by performing BLASTp searches of the Arabidopsis thaliana genes (Meyer et al., 2019; Braun et al., 2014). Mammalian, yeast and bacterial homologues were obtained from Letts and Sazanov, 2015. Additional BLASTp searches were performed wherever necessary. Given the high sequence similarity between the carbonic anhydrase (CA) paralogues, the names of the V. radiata CA proteins appear to have been mis-assigned in the genetic databases relative to their A. thaliana homologues. The CA1, CA2, CA2-like nomenclature used in the table is the one that, based on our sequence alignments, best represents homology to the A. thaliana CA proteins. N, NADH-binding module; Q, quinone-binding module; PP, proximal-pumps module; PD, distal-pumps module; CA, carbonic anhydrase domain.