Computer-Aided Homology Modeling of TbpA Protein from Actinobacillus pleuropneumoniae

Article Preview

Abstract:

TbpA is a highly conserved transmembrane protein that may serve as a channel for transport of iron across the outer membrane, which is required for transferrin utilization and is responsible for removing the iron from transferrin and for transporting iron across the outer membrane in a TonB-dependent manner. In the present study, a 3D homology modeling of TbpA from Actinobacillus pleuropneumoniae (App) L20 strain, based upon the Crystal structure of the hemehemoglobin outer membrane transporter ShuA from Shigella dysenteriae (PDB code: 3fhh) was performed using bioinformatics tools, as no experimental 3D structures. The program VERIFY 3D assessed the quality of the predicted structure of TbpA with acceptable scores. All the results converged to the fact that the predicted 3-Dimenrsional structure of TbpA is of good quality with acceptable scores.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

480-484

Citation:

Online since:

February 2012

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2012 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Bullen, J. J., H. J. Rogers, and E. Griffiths. Role of iron in bacterial infection [J]. Curr. Top. Microbiol. Immunol. 1978, 80(1): 1–35.

Google Scholar

[2] Briat, J. -F. Iron assimilation and storage in prokaryotes [J]. J. Gen. Microbiol, 1992, 138(10): 2475–2483.

DOI: 10.1099/00221287-138-12-2475

Google Scholar

[3] Heather P. Masri and Cynthia N C. Specific Ligand Binding Attributable to Individual Epitopes of Gonococcal Transferrin Binding Protein [J]. Affection and immunity, 2002, 55(2): 732–740.

DOI: 10.1128/iai.70.2.732-740.2002

Google Scholar

[4] Clarke T E, Tari L W and Vogel H J. Structural Biology of Bacterial Iron Uptake Systems [J]. Current Topics in Medicinal Chemistry 2001, 1(1): 7-30.

DOI: 10.2174/1568026013395623

Google Scholar

[5] Baltes, N, Tonpitak, W, Gerlach, G. F, Pauka, I H, Astrid, H M, Ganter, M, et al. Actinobacillus pleuropneumoniae iron transport and urease activity: effects on bacterial virulence and host immune response[J]. Infect. Immun, 2001, 69(1): 472-478.

DOI: 10.1128/iai.69.1.472-478.2001

Google Scholar

[6] Goethe, R, Gonzales, O. F, Lindner, T, et al. A novel strategy for protective Actinobacillus pleuropneumoniae subunit vaccines: detergent extraction of cultures induced by iron restriction. Vaccine[J]. 2000, 19(7): 966-975.

DOI: 10.1016/s0264-410x(00)00212-7

Google Scholar

[7] M.A. Marti-Renom, A. Stuart, A. Fiser, R. Sanchez, F. Melo, A. Sali. Comparative protein structure modeling of genes and genomes [J]. Annu. Rev. Biophys. Biomol. Struct. 2000, 29(1): 291-325.

DOI: 10.1146/annurev.biophys.29.1.291

Google Scholar

[8] N. Eswar, M. A. Marti-Renom, B. Webb, M. S. Madhusudhan, D. Eramian, M. Shen, U. Pieper, A. Sali. Comparative Protein Structure Modeling With MODELLER [J]. Current Protocols in Bioinformatics, 2006, Supplement 15, 561-563.

DOI: 10.1002/0471250953.bi0506s15

Google Scholar

[9] A. Fiser, R.K. Do, & A. Sali. Modeling of loops in protein structures, Protein Science [J] 2000, 9{5}: 1753-1773.

Google Scholar

[10] Moraes T F, Yu R H, Strynadka N C J and Schryvers A B. Insights into the Bacterial Transferrin Receptor: The Structure of Transferrin-Binding Protein B from Actinobacillus pleuropneumoniae[J]. Molecular Cell, 2009, 35(1): 523–533.

DOI: 10.1016/j.molcel.2009.06.029

Google Scholar