Table 1.
List of PGC genes in Rhodobacteraceae
| No. | Gene | Function | Locus tag | Note |
|---|---|---|---|---|
| 01 | hemH | Ferrochelatase | Dshi_3498 | Not specific to PGC |
| 02 | hyp | Hypothetical methyltransferase | Dshi_3499 | Not specific to PGC |
| 03 | comF | Competence protein F | Dshi_3500 | Not specific to PGC |
| 04 | crtA | Spheroidene monooxygenase | Dshi_3501 | |
| 05 | bchI | Mg-chelatase, subunit I | Dshi_3502 | |
| 06 | bchD | Mg-chelatase, subunit D | Dshi_3503 | |
| 07 | bchO | Putative hydrolase | Dshi_3504 | |
| 08 | hyp | Hypothetical regulatory protein MarR family | Dshi_3505 | Not specific to PGC |
| 09 | hyp | Hypothetical protein | Dshi_3506 | Not specific to PGC |
| 10 | grxC | Glutaredoxin-3 | Dshi_3507 | Not specific to PGC |
| 11 | crtI | Phytoene dehydrogenase | Dshi_3508 | |
| 12 | crtB | Phytoene synthase | Dshi_3509 | |
| 13 | tspO | Tryptophan-rich sensory protein (crtK) | Dshi_3510 | |
| 14 | hyp | Hypothetical protein | Dshi_3511 | Not specific to PGC |
| 15 | crtC | Hydroxyneurosporene dehydrogenase | Dshi_3512 | |
| 16 | crtD | Methoxyneurosporene dehydrogenase | Dshi_3513 | |
| 17 | crtE | Geranylgeranyl pyrophosphate synthase | Dshi_3514 | |
| 18 | crtF | Hydroxyneurosporene-O-methyltransferase | Dshi_3515 | |
| 19 | bchC | 3-Hydroxyethyl bacteriochlorophyllide a dehydrogenase | Dshi_3516 | |
| 20 | bchX | Bacteriochlorophyllide reductase, subunit X | Dshi_3517 | |
| 21 | bchY | Bacteriochlorophyllide reductase, subunit Y | Dshi_3518 | |
| 22 | bchZ | Bacteriochlorophyllide reductase, subunit Z | Dshi_3519 | |
| 23 | pufQ | Ferrochelatase regulator PufQ | Dshi_3520 | <100 amino acids |
| 24 | pufB | Light-harvesting antenna LH1, beta subunit | Dshi_3521 | <100 amino acids |
| 25 | pufA | Light-harvesting antenna LH1, alpha subunit | Dshi_3522 | <100 amino acids |
| 26 | pufL | Reaction center protein L | Dshi_3523 | |
| 27 | pufM | Reaction center protein M | Dshi_3524 | |
| 28 | pufC | Reaction center cytochrome C | Dshi_3525 in some species alternated with PufX | |
| 29 | DXPS | 1-Deoxy-D-xylulose-5-phosphate synthase | Dshi_3526 | |
| 30 | idi | IPP isomerase | Dshi_3527 | <100 amino acids |
| 31 | bchP | Geranylgeranyl reductase | Dshi_3528 | |
| 32 | pucC2 | Putative LH assembly protein | Dshi_3529 | |
| 33 | bchG | Bacteriochlorophyll synthase | Dshi_3530 | |
| 34 | ppsR | Transcriptional regulator PpsR (CrtJ) | Dshi_3531 | |
| 35 | ppaA | Regulatory protein PpaA (AerR) | Dshi_3532 | <100 amino acids |
| 36 | bchF | 3-Vinyl bacteriochlorophyllide a hydroxylase | Dshi_3533 | |
| 37 | bchN | Protochlorophyllide reductase (DPOR), subunit N | Dshi_3534 | |
| 38 | bchB | Protochlorophyllide reductase (DPOR), subunit B | Dshi_3535 | |
| 39 | bchH | Mg-chelatase, subunit H | Dshi_3536 | |
| 40 | bchL | Protochlorophyllide reductase (DPOR), subunit L | Dshi_3537 | |
| 41 | bchM | Mg-protoporphyrin IX SAM O-methyltransferase | Dshi_3538 | |
| 42 | lhaA | Putative assembly factor LhaA | Dshi_3539 | |
| 43 | puhA | Reaction center protein H | Dshi_3540 | |
| 44 | puhB | Putative assembly factor PuhB | Dshi_3541 | |
| 45 | puhC | PuhC protein | Dshi_3542 | <100 amino acids |
| 46 | hyp | Hypothetical protein | Dshi_3543 | <100 amino acids |
| 47 | acsF | Mg-protoporphyrin IX oxidative cyclase, aerobic form | Dshi_3544 | |
| 48 | puhE | Putative assembly factor PuhE | Dshi_3545 | |
| 49 | hemA | 5-Aminolevulinate synthase | Dshi_3546 | Not specific to PGC |
| 50 | cycA | Cytochrome c2 | Dshi_3547 | <100 amino acids |
| Additional photosynthetic genes | ||||
| 51 | bchJ | Hypothetical protein | Dshi_2636 | Absent in some species |
| 52 | bchE | Mg-protoporphyrin IX oxidative cyclase, anaerobic form | Dshi_2637 | Absent in some species |
The genes are listed according to their order in D. shibae (see the locus tag numbers). Genes 51 and 52 are part of the PGC in Rhodobacter- and Rhodobaca-related strains. Number of amino acids is calculated after gap removal using G-blocks. Only the genes printed in bold were selected for the phylogenetic analyses