KINK-LIKE EXCITATIONS AS AN ENERGY-TRANSFER MECHANISM IN MICROTUBULES

被引：182
作者：
SATARIC, MV
TUSZYNSKI, JA
ZAKULA, RB
机构：
[1] UNIV ALBERTA, DEPT PHYS, EDMONTON T6G 2J1, ALBERTA, CANADA
[2] INST NUCL SCI BORIS KIDRIC, BELGRADE, YUGOSLAVIA
来源：
PHYSICAL REVIEW E | 1993年 / 48卷 / 01期
关键词：
D O I：
10.1103/PhysRevE.48.589
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
A model is presented that is intended to provide a realistic physical picture of the energy-transfer mechanism in cell microtubules. A classical phi4 model in the presence of a constant electric field is used as a conceptual basis. It is demonstrated that kinklike excitations arise as a result of the guanosine 5'-triphosphate (GTP) hydrolysis and that an intrinsic electrical force may cause them to propagate along a microtubule. A discussion is given on the possible effects of these excitations on the dynamics of microtubules.
引用
收藏
页码：589 / 597
页数：9
相关论文
共 35 条
[1]   PYROELECTRIC AND PIEZOELECTRIC PROPERTIES OF VERTEBRATES [J].
ATHENSTAEDT, H .
ANNALS OF THE NEW YORK ACADEMY OF SCIENCES, 1974, 238 (OCT11) :68-94
[2]  
BARNETT MP, 1987, 3RD P MOL EL DEV C W
[3]   FROHLICH AND DAVYDOV REGIMES IN THE DYNAMICS OF DIPOLAR OSCILLATIONS OF BIOLOGICAL-MEMBRANES [J].
BOLTERAUER, H ;
TUSZYNSKI, JA ;
SATARIC, MV .
PHYSICAL REVIEW A, 1991, 44 (02) :1366-1381
[4]   DYNAMICS OF DOMAIN-WALLS IN FERRODISTORTIVE MATERIALS .1. THEORY [J].
COLLINS, MA ;
BLUMEN, A ;
CURRIE, JF ;
ROSS, J .
PHYSICAL REVIEW B, 1979, 19 (07) :3630-3644
[5]   SINGLE-KINK DYNAMICS IN A ONE-DIMENSIONAL ATOMIC CHAIN - A NONLINEAR ATOMISTIC THEORY AND NUMERICAL-SIMULATION [J].
COMBS, JA ;
YIP, S .
PHYSICAL REVIEW B, 1983, 28 (12) :6873-6885
[6]   DYNAMICS OF DOMAIN-WALLS IN FERRODISTORTIVE MATERIALS .2. APPLICATIONS TO PB5GE3O11-TYPE AND SBSI-TYPE FERROELECTRICS [J].
CURRIE, JF ;
BLUMEN, A ;
COLLINS, MA ;
ROSS, J .
PHYSICAL REVIEW B, 1979, 19 (07) :3645-3655
[7]   SPECIAL ANALYTICAL SOLUTIONS OF THE DAMPED-ANHARMONIC-OSCILLATOR EQUATION [J].
DIXON, JM ;
TUSZYNSKI, JA ;
OTWINOWSKI, M .
PHYSICAL REVIEW A, 1991, 44 (06) :3484-3491
[8]  
DUSTIN P, 1984, MICROTUBULES
[9]   THEORETICAL CONSIDERATIONS ON SWITCHING TRANSIENT IN FERROELECTRICS [J].
FATUZZO, E .
PHYSICAL REVIEW, 1962, 127 (06) :1999-&
[10]  
Frohlich H., 1980, ADV ELECTRON EL PHYS, V53, P85
1234