| APC | Allophycocyanin |
| BphP | Bacterial phytochrome photoreceptor |
| BV | Biliverdin |
| CBCR | Cyanobacteriochrome |
| FP | Fluorescent protein |
| HO | Heme oxygenase |
| iRFP | Near-infraRed Fluorescent Protein |
| miRFP | Monomeric near-infraRed Fluorescent Protein |
| NIR | Near-infrared |
| PCB | Phycocyanobilin |
| PCM | Photosensory core module |
| PEB | Phycoerythrobilin |
| PPIX | Protoporphyrin IX |
| PΦB | Phytochromobilin |
| PVB | Phycoviolobilin |