Figure 3. A. Projection of H8-L-H9 motifs in bacterial
GluRSs on the PC1-PC2 plane. The GluRSs are annotated by their
tRNAGlx-specificity (D, ND, T1 or T2) and bacterial
class: non-proteo or proteo (α-, β-, γ-, δ-, ε-). Two clusters (A, B)
correspond to proteobacteria (with different
tRNAGlx-specificity) while cluster C is dominated by
non-proteobacteria. B. Projection of H8-L -H9 motifs in
proteobacterial GluRSs on the PC1-PC2 plane. The vertical broken line
separates tRNAGln-discriminatory and
tRNAGln-nondiscriminatory bacteria. C.Projection of H8-L -H9 motifs in non-proteobacterial GluRSs on the
PC1-PC2 plane. tRNAGln-discriminatory and
tRNAGln-nondiscriminatory GluRSs are colored red and
blue, respectively. D . H8-L -H9 motifs in GluRS1 (red)
and GluRS2 (blue) from hyperthermophilic bacteria projected on the
PC1-PC2 plane. E. H8-L -H9 motifs in D-GluRS (red) and
ND-GluRS (blue) from firmicutes projected on the PC1-PC2 plane.