### Abstract

The computer program, FEDER/2, has been developed to carry out static and dynamic conformational energy analysis of macromolecules by treating dihedral angles as independent variables. The original program, FEDER (H. Wako and N. Gō, J. Comput. Chem. 8 (1987) 625), developed to rapidly calculate first and second derivatives of a conformational energy function with respect to dihedral angles for a single one protein molecule, has been extended by generalizing the tree representation and by revising the program. The tree topology of a molecular system, which is essential to this program, is defined in terms of rigid 'unit' and rotatable 'bond'. Then, algorithms and formulae based on the tree topology are developed to calculate the first and second derivatives. In this revised version of the program we have constructed a library of units, from which a set of data required for a given specific system of molecules is generated. By separating such parts of the program that take care of specifics of various molecular systems into a form of data in the library of units, the main part of the program to calculate the first and second derivatives has become general enough to be applicable to wider types of molecules.

Original language | English |
---|---|

Pages (from-to) | 233-251 |

Number of pages | 19 |

Journal | Computer Physics Communications |

Volume | 91 |

Issue number | 1-3 |

DOIs | |

Publication status | Published - 1995 Sep 2 |

### Fingerprint

### Keywords

- Conformational analysis
- Energy calculations
- Macromolecules

### ASJC Scopus subject areas

- Hardware and Architecture
- Physics and Astronomy(all)
- Computer Science Applications

### Cite this

*Computer Physics Communications*,

*91*(1-3), 233-251. https://doi.org/10.1016/0010-4655(95)00050-P

**FEDER/2 : program for static and dynamic conformational energy analysis of macro-molecules in dihedral angle space.** / Wako, Hiroshi; Endo, Shigeru; Nagayama, Kuniaki; Go, Nobuhiro.

Research output: Contribution to journal › Article

*Computer Physics Communications*, vol. 91, no. 1-3, pp. 233-251. https://doi.org/10.1016/0010-4655(95)00050-P

}

TY - JOUR

T1 - FEDER/2

T2 - program for static and dynamic conformational energy analysis of macro-molecules in dihedral angle space

AU - Wako, Hiroshi

AU - Endo, Shigeru

AU - Nagayama, Kuniaki

AU - Go, Nobuhiro

PY - 1995/9/2

Y1 - 1995/9/2

N2 - The computer program, FEDER/2, has been developed to carry out static and dynamic conformational energy analysis of macromolecules by treating dihedral angles as independent variables. The original program, FEDER (H. Wako and N. Gō, J. Comput. Chem. 8 (1987) 625), developed to rapidly calculate first and second derivatives of a conformational energy function with respect to dihedral angles for a single one protein molecule, has been extended by generalizing the tree representation and by revising the program. The tree topology of a molecular system, which is essential to this program, is defined in terms of rigid 'unit' and rotatable 'bond'. Then, algorithms and formulae based on the tree topology are developed to calculate the first and second derivatives. In this revised version of the program we have constructed a library of units, from which a set of data required for a given specific system of molecules is generated. By separating such parts of the program that take care of specifics of various molecular systems into a form of data in the library of units, the main part of the program to calculate the first and second derivatives has become general enough to be applicable to wider types of molecules.

AB - The computer program, FEDER/2, has been developed to carry out static and dynamic conformational energy analysis of macromolecules by treating dihedral angles as independent variables. The original program, FEDER (H. Wako and N. Gō, J. Comput. Chem. 8 (1987) 625), developed to rapidly calculate first and second derivatives of a conformational energy function with respect to dihedral angles for a single one protein molecule, has been extended by generalizing the tree representation and by revising the program. The tree topology of a molecular system, which is essential to this program, is defined in terms of rigid 'unit' and rotatable 'bond'. Then, algorithms and formulae based on the tree topology are developed to calculate the first and second derivatives. In this revised version of the program we have constructed a library of units, from which a set of data required for a given specific system of molecules is generated. By separating such parts of the program that take care of specifics of various molecular systems into a form of data in the library of units, the main part of the program to calculate the first and second derivatives has become general enough to be applicable to wider types of molecules.

KW - Conformational analysis

KW - Energy calculations

KW - Macromolecules

UR - http://www.scopus.com/inward/record.url?scp=0029633151&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029633151&partnerID=8YFLogxK

U2 - 10.1016/0010-4655(95)00050-P

DO - 10.1016/0010-4655(95)00050-P

M3 - Article

AN - SCOPUS:0029633151

VL - 91

SP - 233

EP - 251

JO - Computer Physics Communications

JF - Computer Physics Communications

SN - 0010-4655

IS - 1-3

ER -