41. This chromophore is always a donor chromophore of phycoerythrins, since their acceptor chromophore is always phycoerythrobilin. 42. This chromophore is always a donor chromophore of phycoerythrins, since their acceptor chromophore is always phycoerythrobilin. 43. The large chromophore system in the molecule means that it can cause photosensitivity when ingested beyond threshold amounts. 44. In addition to identifying compounds, RR spectroscopy can also supply structural identification about chromophores in some cases. 45. Glu113 serves as the counterion, stabilizing the protonation of the Schiff linkage between Lys296 and the chromophore . 46. Some of these are metal complex chromophores , which contain a metal in a coordination complex with ligands. 47. In contrast to hydrogen peroxide, which oxidizes the chromophores , dithionite reduces these color-causing groups. 48. Subunits L and M provide the scaffolding for the chromophore , while subunit H contains a cytoplasmic domain. 49. This chromophore can be purified from membranes of methanogenic archaea such as " Methanosarcina mazei ". 50. The tightly packed nature of the barrel excludes solvent molecules, protecting the chromophore fluorescence from quenching by water.
