J 2008

In silico mutagenesis and docking studies of Pseudomonas aeruginosa lectin PA-IIL - predicting binding modes and energies

ADAM, Jan, Zdeněk KŘÍŽ, Martin PROKOP, Michaela WIMMEROVÁ, Jaroslav KOČA et. al.

Basic information

Original name

In silico mutagenesis and docking studies of Pseudomonas aeruginosa lectin PA-IIL - predicting binding modes and energies

Name in Czech

In silico mutagenesis and docking studies of Pseudomonas aeruginosa lectin PA-IIL - predicting binding modes and energies

Authors

ADAM, Jan (203 Czech Republic), Zdeněk KŘÍŽ (203 Czech Republic), Martin PROKOP (203 Czech Republic), Michaela WIMMEROVÁ (203 Czech Republic) and Jaroslav KOČA (203 Czech Republic, guarantor)

Edition

Journal of Chemical Information and Modeling, 2008, 1549-9596

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10600 1.6 Biological sciences

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 3.643

RIV identification code

RIV/00216224:14310/08:00024957

Organization unit

Faculty of Science

UT WoS

000261103700013

Keywords in English

lectins; molecular modeling; computational chemistry; in silico prediction; docking

Tags

International impact, Reviewed
Změněno: 24/6/2009 12:53, prof. RNDr. Michaela Wimmerová, Ph.D.

Abstract

V originále

This article is focused on the application of two types of AutoDock and DOCK docking software, and aimed at studying the interaction of a calcium-dependent bacterial lectin PA-IIL from Pseudomonas aeruginosa as well as its mutants with saccharide ligands. The effect of different partial charges assigned to the calcium ions was tested and evaluated in terms of the best agreement with the crystal structure. The results of DOCK were further optimized by molecular dynamics and rescored using AMBER. For both software, the agreement of the docked structures and the provided binding energies were evaluated in terms of prediction accuracy. This was carried out by comparing the computed results to the crystal structures and experimentally determined binding energies, respectively. The performance of the both docking software applied on studied problem was evaluated as well. The molecular docking methods proved efficient in identifying the correct binding modes in terms of geometry, and partially also in predicting the preference changes caused by mutation. Obtaining a reasonable in silico method for the prediction of lectin-saccharide interactions may be possible in the future.

In Czech

This article is focused on the application of two types of AutoDock and DOCK docking software, and aimed at studying the interaction of a calcium-dependent bacterial lectin PA-IIL from Pseudomonas aeruginosa as well as its mutants with saccharide ligands. The effect of different partial charges assigned to the calcium ions was tested and evaluated in terms of the best agreement with the crystal structure. The results of DOCK were further optimized by molecular dynamics and rescored using AMBER. For both software, the agreement of the docked structures and the provided binding energies were evaluated in terms of prediction accuracy. This was carried out by comparing the computed results to the crystal structures and experimentally determined binding energies, respectively. The performance of the both docking software applied on studied problem was evaluated as well. The molecular docking methods proved efficient in identifying the correct binding modes in terms of geometry, and partially also in predicting the preference changes caused by mutation. Obtaining a reasonable in silico method for the prediction of lectin-saccharide interactions may be possible in the future.

Links

GA303/06/0570, research and development project
Name: Strukturně-funkční studie lektinů a adhezinů patogenních mikroorganismů
Investor: Czech Science Foundation, Structure-function studies on lectins and adhesins from microbial patogens
LC06030, research and development project
Name: Biomolekulární centrum
Investor: Ministry of Education, Youth and Sports of the CR, Biomolecular centre
MSM0021622413, plan (intention)
Name: Proteiny v metabolismu a při interakci organismů s prostředím
Investor: Ministry of Education, Youth and Sports of the CR, Proteins in metabolism and interaction of organisms with the environment