CONFORMATION OF THE HELICAL POLYAMIDE POLY(ALPHA-ISOBUTYL L-ASPARTATE)

被引：53

作者：

BELLA, J ^{[1
]}

ALEMAN, C ^{[1
]}

FERNANDEZSANTIN, JM ^{[1
]}

ALEGRE, C ^{[1
]}

SUBIRANA, JA ^{[1
]}

机构：

[1] UNIV POLITECN CATALUNYA,ESCUELA TECN SUPER ENGN IND,DEPT ENGN QUIM,DIAGONAL 647,E-08028 BARCELONA,SPAIN

来源：

MACROMOLECULES | 1992年 / 25卷 / 20期

关键词：

D O I：

10.1021/ma00046a018

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We analyze the conformation of the two forms (hexagonal and tetragonal) of the title compound with the linked-atom least-squares (LALS) methodology applied to X-ray data previously reported and with AMBER energy optimization algorithms. We conclude that both helical forms are right handed, with very similar conformational angles, and report their coordinates. The transition between both forms appears to be mainly determined by the side chain interactions.

引用

页码：5225 / 5230

页数：6

共 23 条

[1] ALEGRE C, 1988, THESIS U BARCELONA
[2] A NEW STRATEGY FOR THE EVALUATION OF FORCE PARAMETERS FROM QUANTUM-MECHANICAL COMPUTATIONS
ALEMAN, C
CANELA, EI
FRANCO, R
OROZCO, M
[J]. JOURNAL OF COMPUTATIONAL CHEMISTRY, 1991, 12 (06) : 664 - 674
[3] A MOLECULAR MECHANICAL STUDY OF THE STRUCTURE OF POLY (ALPHA-AMINOISOBUTYRIC-ACID)
ALEMAN, C
SUBIRANA, JA
PEREZ, JJ
[J]. BIOPOLYMERS, 1992, 32 (06) : 621 - 631
[4] [Anonymous], 1987, DYNAMICS PROTEINS NU
[5] BELLA J, 1991, THESIS U POLITECNICA
[6] ATOMIC CHARGES DERIVED FROM SEMIEMPIRICAL METHODS
BESLER, BH
MERZ, KM
KOLLMAN, PA
[J]. JOURNAL OF COMPUTATIONAL CHEMISTRY, 1990, 11 (04) : 431 - 439
[7] CAMPBELLSMITH PJ, 1978, ACTA CRYSTALLOGR A, V34, P3
[8] A PSEUDO ALPHA-HELIX FROM POLY(ALPHA-ISOBUTYL-L-ASPARTATE), A NYLON-3 DERIVATIVE
FERNANDEZSANTIN, JM
AYMAMI, J
RODRIGUEZGALAN, A
MUNOZGUERRA, S
SUBIRANA, JA
[J]. NATURE, 1984, 311 (5981) : 53 - 54
[9] HELICAL CONFORMATIONS IN A POLYAMIDE OF THE NYLON-3 FAMILY
FERNANDEZSANTIN, JM
MUNOZGUERRA, S
RODRIGUEZGALAN, A
AYMAMI, J
LLOVERAS, J
SUBIRANA, JA
GIRALT, E
PTAK, M
[J]. MACROMOLECULES, 1987, 20 (01) : 62 - 68
[10] FERNANDEZSANTIN JM, 1986, THESIS U POLITECNICA

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