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Table 4 Overview of CRISPR systems, plasmids and prophages in fuel-producing Clostridium species
| Category | Organism | Genome size (Mb) | Status | Plasmid reference number | Plasmid(s) size (kb) | Prophages (number)* | Prophage(s) size (kb) | CRISPR arrays (number)* | CRISPR repeats (number) | |
|---|---|---|---|---|---|---|---|---|---|---|
| Solventogenic (ABE) Clostridia | C. acetobutylicum ATCC824 | 3.94 | complete | [60] | 1 | 192 | 3 | 191 | - | - |
| C. acetobutylicum EA2018 | 3.94 | complete | [61] | 1 | 192 | 3 | 191 | - | - | |
| C. acetobutylicum DSM1731 | 3.94 | complete | [62] | 2 | 201 | 3 | 191 | - | - | |
| C. beijerinckii NCIMB8052 | 6.00 | complete | - | - | - | 4 | 106 | - | - | |
| C. saccharobutylicum DSM13864 | 5.10 | complete | [63] | - | - | 5 | 133 | 4 | 55 | |
| C. saccharoperbutylacetonicum N1-4 | 6.53 | complete | [64] | 1 | 136 | 6 | 161 | 4 | 67 | |
| Cellulolytic Clostridia | C. cellulolyticum H10 | 4.07 | complete | - | - | - | 8 | 210 | 3 | 23 |
| C. cellulovoran s 743B | 5.26 | complete | [65] | - | - | 5 | 179 | 3 | 44 | |
| C. thermocellum ATCC27405 | 3.84 | complete | [66] | - | - | 5 | 222 | 5 | 442 | |
| C. thermocellum DSM1313 | 3.56 | complete | [67] | - | - | 1 | 26 | 5 | 189 | |
| C. phytofermentans ISdg | 4.85 | complete | - | - | - | 1 | 28 | - | - | |
| Acetogenic Clostridia | C. autoethanogenum DSM10061 | 4.35 | complete | this study | - | - | 4 | 115 | 3 | 95 |
| C. ljungdhalii DSM13528 | 4.63 | complete | [28] | - | - | 6 | 248 | - | - | |
| C. carboxidivorans P7 | 5.59 | 251 contigs | - | 1 | 20 | 1 | 19 | - | - | |
| 4.40 | 69 contigs | [68] | 1 | 20 | - | - | - | - |
