Table 1.
Updated consensus gene clusters (designated as gene products) of the last common ancestors of Bacteria (LBCA), Archaea (LACA) and last universal common ancestor (LUCA) (double line = cluster break).
| LBCA | SecE | NusG | L11p | L1p | L10p | L12p | — | Rpoβ | Rpoβ’ | L30e | — | S12p | S7p | EF-G |
| LACA | SecE | NusG | L11p | L1p | L10p | L12p | RpoH | RpoB | RpoA | L30e | NusA | S12p | S7p | EF-2 |
| LUCA | SecE | NusG | L11p | L1p | L10p | L12p | — | Rpoβ | Rpoβ’ | L30e | — | S12p | S7p | EF-G |
| LBCA | EF-Tu | S10p | L3p | L4p | L23p | L2p | S19p | L22p | S3p | L16 | L29p | — | S17p | L14p |
| LACA | EF-1α | S10p | L3p | L4p | L23p | L2p | S19p | L22p | S3p | — | L29p | Rpp29 | S17p | L14p |
| LUCA | EF-Tu | S10p | L3p | L4p | L23p | L2p | S19p | L22p | S3p | — | L29p | — | S17p | L14p |
| LBCA | L24p | — | L5p | S14p | S8p | L6p | — | — | L18p | S5p | L30p | L15p | SecY | adk |
| LACA | L24p | S4E | L5p | S14p | S8p | L6p | L32e | L19e | L18p | S5p | L30p | L15p | SecY | adk |
| LUCA | L24p | — | L5p | S14p | S8p | L6p | — | — | L18p | S5p | L30p | L15p | SecY | adk |
| LBCA | map | IF-1 | L36 | S13p | — | S11p | S4p | Rpoα | L17 | — | L13p | S9p | — | S2p |
| LACA | 7 genes | — | S13p | S4p | S11p | — | RpoD | — | L18e | L13p | S9p | RpoN | S2p | |
| LUCA | — | — | — | S13p | — | S11p | — | Rpoα | — | — | L13p | S9p | — | S2p |