THERMODYNAMICS AND KINETICS OF THE SPIN TRANSITION IN AQUOMETHEMOGLOBIN

被引：12

作者：

DREYER, U

ILGENFRITZ, G

机构：

来源：

BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS | 1979年 / 87卷 / 04期

关键词：

D O I：

10.1016/S0006-291X(79)80008-X

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The temperature-induced transition in aquo-methemoglobin, which is attributed to the spin transition on the basis of the kinetic difference spectrums is investigated from -20 to +20°C by temperature-jump experiments. Reaction and activation enthalpies of the transition are determined. The equilibrium is almost fully on one side, suggesting that two kinds of spin-equilibria exist in this temperature range. The presence of inorganic ions (Cl-) should be avoided since these ions exhibit additional effects. © 1979 Academic Press, Inc. All rights of reproduction in any form reserved.

引用

收藏

页码：1011 / 1017

页数：7

相关论文

共 12 条

[1] REACTIVITY DIFFERENCES BETWEEN HAEMOGLOBINS .11. REACTION OF HUMAN METHAEMOGLOBIN A AND PIGEON METHAEMOGLOBIN WITH IMIDAZOLE [J].

BEETLESTONE, JG ;

EPEGA, AA ;

IRVINE, DH .

JOURNAL OF THE CHEMICAL SOCIETY A -INORGANIC PHYSICAL THEORETICAL, 1968, (06) :1346-+

[2]

GEORGE P, 1961, HAEMATIN ENZYMES, P105

[3]

GOLDSACK DE, 1966, J BIOL CHEM, V241, P2653

[4]

HUIBONHO.G, 1973, J BIOL CHEM, V248, P4649

[5] ANALYSIS OF THERMAL EQUILIBRIUM BETWEEN HIGH-SPIN AND LOW-SPIN STATES IN FERRIHEMOGLOBIN COMPLEXES [J].

IIZUKA, T ;

KOTANI, M .

BIOCHIMICA ET BIOPHYSICA ACTA, 1969, 194 (02) :351-&

[6] INFLUENCE OF QUATERNARY STRUCTURE OF GLOBIN ON THERMAL SPIN EQUILIBRIA IN DIFFERENT METHEMOGLOBIN DERIVATIVES [J].

MESSANA, C ;

CERDONIO, M ;

SHENKIN, P ;

NOBLE, RW ;

FERMI, G ;

PERUTZ, RN ;

PERUTZ, MF .

BIOCHEMISTRY, 1978, 17 (17) :3652-3662

[7] VOLUME CHANGES IN BINDING OF LIGANDS TO METHEMOGLOBIN AND METMYOGLOBIN [J].

OGUNMOLA, GB ;

KAUZMANN, W ;

ZIPP, A .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1976, 73 (12) :4271-4273

[8] INFLUENCE OF GLOBIN STRUCTURE ON STATE OF HEME .3. CHANGES IN HEME SPECTRA ACCOMPANYING ALLOSTERIC TRANSITIONS IN METHEMOGLOBIN AND THEIR IMPLICATIONS FOR HEME-HEME INTERACTION [J].

PERUTZ, MF ;

HEIDNER, EJ ;

LADNER, JE ;

BEETLESTONE, JG ;

HO, C ;

SLADE, EF .

BIOCHEMISTRY, 1974, 13 (10) :2187-2200

[9] INTERACTIONS BETWEEN QUATERNARY STRUCTURE OF GLOBIN AND SPIN STATE OF HEME IN FERRIC MIXED SPIN DERIVATIVES OF HEMOGLOBIN [J].

PERUTZ, MF ;

SANDERS, JKM ;

CHENERY, DH ;

NOBLE, RW ;

PENNELLY, RR ;

FUNG, LWM ;

HO, C ;

GIANNINI, I ;

PORSCHKE, D ;

WINKLER, H .

BIOCHEMISTRY, 1978, 17 (17) :3640-3652

[10]

ROSSIFANELLI A, 1961, J BIOL CHEM, V236, P391