| Role | Gene | Name | |
|---|
| ATP-dependent DNA helicase RecG (EC 3.6.1.-) | Synpcc7942_1079 | recG | |
| ATP-dependent DNA helicase RecQ | Synpcc7942_1301 | recQ | |
| Arrested fork binding | No genes | | |
| Chromosomal replication initiator protein DnaA | Synpcc7942_1100 | dnaA | |
| Crossover junction endodeoxyribonuclease RuvC (EC 3.1.22.4) | Synpcc7942_0798 | ruvC | |
| DNA polymerase I (EC 2.7.7.7) | Synpcc7942_0194 | polA | |
| DNA polymerase II (EC 2.7.7.7) | No genes | | |
| DNA polymerase III alpha subunit (EC 2.7.7.7) | Synpcc7942_2199 | dnaE | |
| DNA polymerase III beta subunit (EC 2.7.7.7) | Synpcc7942_0001 | dnaN | |
| DNA polymerase III chi subunit (EC 2.7.7.7) | No genes | | |
| DNA polymerase III delta prime subunit (EC 2.7.7.7) | Synpcc7942_0094 | dnaX | |
| DNA polymerase III delta subunit (EC 2.7.7.7) | Synpcc7942_0405 | holA | |
| DNA polymerase III epsilon subunit (EC 2.7.7.7) | No genes | | |
| DNA polymerase III psi subunit (EC 2.7.7.7) | No genes | | |
| DNA polymerase III subunits gamma and tau (EC 2.7.7.7) | Synpcc7942_0912 | dnaX | |
| DNA polymerase III theta subunit (EC 2.7.7.7) | No genes | | |
| DNA primase (EC 2.7.7.-) | Synpcc7942_1292 | dnaG | |
| | Synpcc7942_B2633 | | |
| DNA primase (EC 2.7.7.-), phage-associated | No genes | | |
| DNA primase TraC (EC 2.7.7.-) | No genes | | |
| DNA repair protein RecN | Synpcc7942_1779 | recN | |
| DNA replication protein DnaC | No genes | | |
| DNA replication terminus site-binding protein | No genes | | |
| Exodeoxyribonuclease V alpha chain (EC 3.1.11.5) | No genes | | |
| Exodeoxyribonuclease V beta chain (EC 3.1.11.5) | No genes | | |
| Exodeoxyribonuclease V gamma chain (EC 3.1.11.5) | No genes | | |
| Helicase PriA essential for oriC/DnaA-independent DNA replication | Synpcc7942_0651 | priA | |
| Helicase loader DnaI | No genes | | |
| Holliday junction DNA helicase RuvA | Synpcc7942_2298 | ruvA | |
| Holliday junction DNA helicase RuvB | Synpcc7942_0835 | ruvB | |
| Primosomal protein I | No genes | | |
| Primosomal replication protein N | No genes | | |
| Primosomal replication protein N prime prime | No genes | | |
| RecA protein | Synpcc7942_0348 | recA | |
| Recombination protein RecR | Synpcc7942_1369 | recR | |
| Replicative DNA helicase (EC 3.6.1.-) | Synpcc7942_1325 | dnaB | |
| Replicative DNA helicase (EC 3.6.1.-) [SA14-24] | No genes | | |
| Single-stranded-DNA-specific exonuclease RecJ (EC 3.1.-.-) | Synpcc7942_1886 | recJ | |
| Transcription-repair coupling factor | Synpcc7942_1326 | mfd | |