Difference in the Mössbauer spectrum parameters and electron structure of active sites of non-equivalent subunits of tetrameric deoxyhemoglobin and deoxymyoglobin [Otlichie messbauérovskikh parametrov i élektronnoǐ struktury aktivnykh tsentrov neékvivalentnykh sub''edinits tetramernogo dezoksigemoglobina i dezoksimioglobina.] / Burykin B.N., Khleskov V.I., Oshtrakh M.I., Semenkin V.A. // Molekulyarnaya Biologiya. - 1987. - V. 21, l. 6. - P. 1677-1685.

ISSN:

00268984

Type:

Article

Abstract:

The calculations of the electronic structure of fifth-coordinated ferroporphyrin-imidazole complexes modeling alpha- and beta-subunits in desoxyhemoglobin and desoxymyoglobin are made using the interative extended Hückel method. The features of the electronic structure of the model complexes resulting from the stereochemical differences of the active site are studied and compared. Theoretical calculations of the Mössbauer parameters of model complexes are made and compared with experimental data. The results show that basic features of the Mössbauer parameters are qualitatively confirmed by the theoretical analysis. The necessity of the accounting of the stereochemical and electronic structure nonequivalence of nonidentical subunits in tetrameric desoxyhemoglobins during the Mössbauer spectra approximation is also confirmed.

Author keywords:

Index keywords:

deoxyhemoglobin; ferrous ion; hemoglobin; article; binding site; chemical model; comparative study; macromolecule; spectroscopy; Binding Sites; Comparative Study; English Abstract; Ferrous Compounds;

DOI:

нет данных

Смотреть в Scopus:

https://www.scopus.com/inward/record.uri?eid=2-s2.0-0023441370&partnerID=40&md5=89a4c57f8bf431df0f7384c31979d9ad

Соавторы в МНС:

Другие поля

Поле	Значение
Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-0023441370&partnerID=40&md5=89a4c57f8bf431df0f7384c31979d9ad
Chemicals/CAS	ferrous ion, 15438-31-0; hemoglobin, 9008-02-0; deoxyhemoglobin, 9008-02-0; Ferrous Compounds; Hemoglobins; Macromolecular Systems
Correspondence Address	Burykin, B.N.
PubMed ID	3447053
Language of Original Document	Russian
Abbreviated Source Title	Mol Biol (Mosk)
Source	Scopus