Strong vibronic coupling in heme proteins.
Biophys Chem
; 42(2): 111-5, 1992 Feb.
Article
em En
| MEDLINE
| ID: mdl-1567985
ABSTRACT
We report the near infrared absorption spectra of cyanomethemoglobin and cyanometmyoglobin in two different solvents (deuterated solutions containing 65% v/v glycerol(OD)3 or 65% v/v ethylene glycol(OD)2). At 25 K the spectra show a clearly resolved fine structure that can be accounted for by considering a strong coupling of the porphyrin-to-iron charge transfer transitions with a single vibrational mode at 365 cm-1. The coupling constants depend on both the specific electronic transition and the protein surrounding the chromophore, indicating once more the specificity of heme globin interactions.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Metemoglobina
/
Metamioglobina
Limite:
Humans
Idioma:
En
Revista:
Biophys Chem
Ano de publicação:
1992
Tipo de documento:
Article
País de afiliação:
Itália