title: [Protonation of acridine in a hydrated protein matrix].
abstract: Fluorescence of polycrystaline acridine in the matrix of solid alpha-chymotrypsin was studied at different humidities of the atmosphere. The fluorescence was not changed when the mixture was extensively dried. At intermediate and high humidities two consecutive processes proceed: 1) the solid-state dissolution of acridine crystals in the protein matrix and 2) the capture of protons by dispersed acridine molecules due to the proton transport through H-bound chains of water molecules from the protein proton-donor groups.
mesh_terms: D000166:Acridines; D055598:Chemical Phenomena; D002621:Chemistry; D002918:Chymotrypsin; D011522:Protons; D013050:Spectrometry, Fluorescence; D014867:Water
chemical_list: D000166:Acridines; D011522:Protons; D014867:Water; D002918:Chymotrypsin
vernacular_title: O protonirovanii akridina v matritse gidratirovannogo belka.