Fig. 4.

Relationships of MUR4 homologues and UGEs. The phylogenetic relationships of MUR4 homologues and UGEs were analyzed using MEGA software (version 6.0, Tamura et al. 2013). The bar indicates substitutions per site. Red circles indicate enzymes that have been shown to possess UXE activity. MUR4-related proteins were taken without their transmembrane domain, which was removed according to the prediction obtained from the TMHMM program (Krogh et al. 2001). Accession numbers for the sequences are listed in Supplemental Table 1