共 7 条
COMPUTER-PROGRAMS FOR NUCLEIC-ACIDS STUDIES - ATOMIC COORDINATES OF HELICES AND THEIR GRAPHIC DISPLAY
被引:7
作者:
KAN, LS
KAST, JR
TSO, DY
TSO, POP
机构:
[1] The Division of Biophysics, School of Hygiene and Public Health, The Johns Hopkins University, Baltimore
来源:
COMPUTER PROGRAMS IN BIOMEDICINE
|
1979年
/
10卷
/
01期
基金:
美国国家科学基金会;
美国国家卫生研究院;
关键词:
Atomic coordinates;
Chemical shifts;
Graphic display;
Nucleic acids;
D O I:
10.1016/0010-468X(79)90046-1
中图分类号:
TP39 [计算机的应用];
学科分类号:
081203 ;
0835 ;
摘要:
For the purpose of calculation of NMR and other physicochemical properties of nucleic acids, a computer program in FORTRAN language has been written. This program provides the printout of the Cartesian and cylindrical coordinates of all atoms of a double-stranded helix of nucleic acid in either A, A′ or B conformation with any specified base sequence up to 50 nucleotides or longer. In addition, the interatomic distances between any two atoms or distances (with both perpendicular and parallel components) from the centers of the base rings to any atom in the helix can be calculated. This information has been used for the calculation of the ring current effects on the 1H chemical shift of two short helices. Satisfactory agreement has been found in the comparison between the present data and that obtained from model construction and from the table prepared by Arter and Schmidt [1]. The structure of the helix can also be illustrated in graphic form on a Tektronix 4006 CRT terminal. The presentation can be manipulated, such as selection, enlargement, translation and rotation. © 1979.
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页码:16 / 28
页数:13
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