Incoherent control of protein conformational state

被引：6

作者：

Agmon, N ^{[1
]}

Krissinel, EB

机构：

[1] Hebrew Univ Jerusalem, Dept Phys Chem, IL-91904 Jerusalem, Israel

[2] Hebrew Univ Jerusalem, Fritz Haber Res Ctr, IL-91904 Jerusalem, Israel

[3] Russian Acad Sci, Inst Water & Environm Problems, Siberian Branch, Barnaul 656099, Russia

来源：

CHEMICAL PHYSICS LETTERS | 1998年 / 294卷 / 1-3期

关键词：

D O I：

10.1016/S0009-2614(98)00832-X

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The peaks in the temperature-derivative spectra of horse myoglobin-CO are simulated for two cooling protocols: in the dark and under illumination. The appropriate Smoluchowski equations for both cooling/preparation and heating/monitoring steps an solved for parameters previously obtained by fitting the transient isothermal binding kinetics. The qualitative agreement with experiment suggests that the new peak observed after slow cooling under illumination arises from population which relaxes in the deoxy state during both cooling and heating steps. The analysis shows how temperature and light allow one to control the inhomogeneous conformational distribution in myoglobin. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：79 / 86

页数：8

共 24 条

[1] A temperature-dependent effective potential explains CO binding to myoglobin [J].

Agmon, N ;

Sastry, GM .

CHEMICAL PHYSICS, 1996, 212 (01) :207-219

[2] CO BINDING TO HEME-PROTEINS - A MODEL FOR BARRIER HEIGHT DISTRIBUTIONS AND SLOW CONFORMATIONAL-CHANGES [J].

AGMON, N ;

HOPFIELD, JJ .

JOURNAL OF CHEMICAL PHYSICS, 1983, 79 (04) :2042-2053

[3] DIFFUSIVE DYNAMICS ON POTENTIAL-ENERGY SURFACES - NONEQUILIBRIUM CO BINDING TO HEME-PROTEINS [J].

AGMON, N ;

RABINOVICH, S .

JOURNAL OF CHEMICAL PHYSICS, 1992, 97 (10) :7270-7286

[4] THE TRANSITION FROM INHOMOGENEOUS TO HOMOGENEOUS KINETICS IN CO BINDING TO MYOGLOBIN [J].

AGMON, N ;

DOSTER, W ;

POST, F .

BIOPHYSICAL JOURNAL, 1994, 66 (05) :1612-1622

[5] EVIDENCE FOR PROXIMAL CONTROL OF LIGAND SPECIFICITY IN HEMEPROTEINS - ABSORPTION AND RAMAN STUDIES OF CRYOGENICALLY TRAPPED PHOTOPRODUCTS OF LIGAND BOUND MYOGLOBINS [J].

AHMED, AM ;

CAMPBELL, BF ;

CARUSO, D ;

CHANCE, MR ;

CHAVEZ, MD ;

COURTNEY, SH ;

FRIEDMAN, JM ;

IBEN, IET ;

ONDRIAS, MR ;

YANG, M .

CHEMICAL PHYSICS, 1991, 158 (2-3) :329-351

[6] ISOTOPE EFFECT IN MOLECULAR TUNNELING [J].

ALBEN, JO ;

BEECE, D ;

BOWNE, SF ;

EISENSTEIN, L ;

FRAUENFELDER, H ;

GOOD, D ;

MARDEN, MC ;

MOH, PP ;

REINISCH, L ;

REYNOLDS, AH ;

YUE, KT .

PHYSICAL REVIEW LETTERS, 1980, 44 (17) :1157-1160

[7] REBINDING AND RELAXATION IN THE MYOGLOBIN POCKET [J].

ANSARI, A ;

BERENDZEN, J ;

BRAUNSTEIN, D ;

COWEN, BR ;

FRAUENFELDER, H ;

HONG, MK ;

IBEN, IET ;

JOHNSON, JB ;

ORMOS, P ;

SAUKE, TB ;

SCHOLL, R ;

SCHULTE, A ;

STEINBACH, PJ ;

VITTITOW, J ;

YOUNG, RD .

BIOPHYSICAL CHEMISTRY, 1987, 26 (2-3) :337-355

[8] DYNAMICS OF LIGAND-BINDING TO MYOGLOBIN [J].

AUSTIN, RH ;

BEESON, KW ;

EISENSTEIN, L ;

FRAUENFELDER, H ;

GUNSALUS, IC .

BIOCHEMISTRY, 1975, 14 (24) :5355-5373

[9] TEMPERATURE-DERIVATIVE SPECTROSCOPY - A TOOL FOR PROTEIN DYNAMICS [J].

BERENDZEN, J ;

BRAUNSTEIN, D .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1990, 87 (01) :1-5

[10] STRUCTURAL HETEROGENEITY IN PROTEINS AT CRYOGENIC TEMPERATURES - COOLING RATE DEPENDENCE [J].

CHU, K ;

NIENHAUS, GU ;

PHILIPP, R .

CHEMICAL PHYSICS LETTERS, 1993, 216 (3-6) :275-280

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