Table 1.
Genomes of Methanothermobacter marburgensis and of Methanothermobacter thermautotrophicus.
| M. marburgensis | M. thermautotrophicus | |
|---|---|---|
| Chromosome size (bp) | 1, 639,135 | 1,751,377 |
| G+C content (mol%) | 48.64 | 49.54 |
| Coding (%) | 90.94 | 91.02 |
| CDS | 1,752 | 1,873 |
| CDS in common | 1,607 | 1,607 |
| for conserved hypothetical proteins | 468 | 468 |
| for predicted membrane proteinsa | 327 | 327 |
| CDS not in common | 145 | 266 |
| for predicted membrane proteinsa | 48 | 80 |
| CDS for proteins with an intein | 1b | 1b |
| 5S rRNA | 3 | 3 |
| 16S rRNA | 2 | 2 |
| 23S rRNA | 2 | 2 |
| tRNA | 40 | 39 |
| tRNA with introns | 3 | 3 |
| Catalytic RNA (Ribonuclease P) | 1 | 1 |
| Rnp-assisting proteins | 4 | 4 |
| CRISPR locus | 1 (36 repeats) | 3 (175 repeats) |
| CRISPR-associated CDS | 1 | 18 |
| Sec transport system | yes | yes |
| 7S rRNA (signal recognition particle RNA) | 1 | 1 |
| SRP-19, SRP-54, five Sec proteins | yes | yes |
| FtsY (SRP receptor); YidC | yes | yes |
| Signal peptidase | 1 | 1 |
| Tat system | no | no |
| Fimbrin | 2 | 3 |
| Sortase | 2 | 2 |
| Adhesin-like proteinsc | 12 | 12 |
| IS-like elements | 15 | no |
| Transposase | 1 (2 CDS) | no |
| Plasmid | pME2001 (4,439 bp) | no |
aCDS predicted to code for transmembrane proteins based on the presence of at least one transmembrane helix as determined by TMHMM Server v. 2.0. badenosylcobalamin-dependent ribonucleotide reductase (MTBMA_c10320; MTH652).chomologous to one or several of the 105 adhesin-like proteins in Methanobrevibacter ruminantium [41].