Title
Art v 4 Protein Structure as a Representative Template for Allergen Profilins: Homology Modeling and Molecular Dynamics
Date Issued
13 December 2018
Access level
open access
Resource Type
journal article
Publisher(s)
American Chemical Society
Abstract
Profilins are panallergenic proteins of clinical relevance. We compared three groups of three-dimensional structures from six vegetable profilins. The first group was composed of crystal structures obtained by X-ray diffraction. The second and the third group structures were obtained by homology modeling; the selection criteria of the templates for these were based on the best resolution structure and the highest sequence identity, respectively. All of the structures underwent a 200 ns molecular dynamics simulation. The best template for the second group was Art v 4 and for the third group was the crystal structure corresponding to each profilin, except for Zea m 12. After molecular dynamics simulation, root-mean-square deviation, root-mean-square fluctuation, and radii of gyration values were similar in all groups, except for Amb a 8 (second group) and Zea m 12 (third group). All structures had acceptable conformation quality values, demonstrated in the Ramachandran plot and Z-score. The evaluation of epitopes did not have pertinent alterations of all of the structures. Art v 4 profilin was an acceptable template to model three-dimensional profilin structures of this work. The selection of templates based on their structural resolution and the measure of the quality is a good alternative to homology modeling of proteins of the same family.
Start page
17254
End page
17260
Volume
3
Issue
12
Language
English
OCDE Knowledge area
Bioquímica, Biología molecular
Alergia
Scopus EID
2-s2.0-85058672845
Source
ACS Omega
ISSN of the container
24701343
Sponsor(s)
The authors thank Consejo Nacional de Ciencia, Tecnologıá e Innovacioń Tecnologicá from Peruvian government through 138-2015 FONDECYT grant.
Sources of information:
Directorio de Producción Científica
Scopus