PMID- 25156076 OWN - NLM STAT- MEDLINE DCOM- 20150616 LR - 20141010 IS - 1476-928X (Electronic) IS - 1476-9271 (Linking) VI - 52 DP - 2014 Oct TI - Molecular dynamics simulations of lectin domain of FimH and immunoinformatics for the design of potential vaccine candidates. PG - 18-24 LID - S1476-9271(14)00081-4 [pii] LID - 10.1016/j.compbiolchem.2014.08.002 [doi] AB - Adhesion of uropathogenic E. coli (UPEC) to uroepithelial cell receptors is facilitated through the lectin domain of FimH adhesin. In the current study, Molecular Dynamics (MD) simulations were performed for the lectin domain of FimH from UPEC J96. The high affinity state lectin domain was found to be stable and rigid during the simulations. Further, based on conserved subsequences around one of the disulfide forming cysteines, two sequence motifs were designed. An immunoinformatics approach was utilized to identify linear and discontinuous epitopes for the lectin domain of FimH. We propose that the accessibility of predicted epitopes should also be assessed in a dynamic aqueous environment to evaluate the potential of vaccine candidates. Since MD simulation data enables assessing the accessibility in a dynamic environment, we evaluated the accessibility of the top ranked discontinuous and linear epitopes using structures obtained at every nanosecond (ns) in the 1-20 ns MD simulation timeframe. Knowledge gained in this study has a potential utility in the design of vaccine candidates for Urinary Tract Infection (UTI). CI - Copyright (c) 2014 Elsevier Ltd. All rights reserved. FAU - Singaravelu, Muthukumar AU - Singaravelu M AD - Centre for Biotechnology, Anna University, Chennai 600 025, India; National Institute of Ocean Technology, Chennai 600 100, India. FAU - Selvan, Anitha AU - Selvan A AD - Centre for Biotechnology, Anna University, Chennai 600 025, India. FAU - Anishetty, Sharmila AU - Anishetty S AD - Centre for Biotechnology, Anna University, Chennai 600 025, India. Electronic address: s_anishetty@yahoo.co.uk. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140815 PL - England TA - Comput Biol Chem JT - Computational biology and chemistry JID - 101157394 RN - 0 (Adhesins, Escherichia coli) RN - 0 (Epitopes) RN - 0 (Lectins) RN - 0 (Vaccines) RN - 0 (fimH protein, E coli) RN - 147680-16-8 (Fimbriae Proteins) SB - IM MH - Adhesins, Escherichia coli/*chemistry MH - Computational Biology MH - *Epitopes MH - Fimbriae Proteins/*chemistry MH - Lectins/*chemistry MH - Molecular Dynamics Simulation MH - Protein Structure, Tertiary MH - Vaccines OTO - NOTNLM OT - FimH adhesin OT - Immunoinformatics OT - Molecular dynamics simulation OT - Motif OT - Rigidity OT - Vaccine EDAT- 2014/08/27 06:00 MHDA- 2015/06/17 06:00 CRDT- 2014/08/27 06:00 PHST- 2014/04/02 00:00 [received] PHST- 2014/08/11 00:00 [revised] PHST- 2014/08/11 00:00 [accepted] PHST- 2014/08/27 06:00 [entrez] PHST- 2014/08/27 06:00 [pubmed] PHST- 2015/06/17 06:00 [medline] AID - S1476-9271(14)00081-4 [pii] AID - 10.1016/j.compbiolchem.2014.08.002 [doi] PST - ppublish SO - Comput Biol Chem. 2014 Oct;52:18-24. doi: 10.1016/j.compbiolchem.2014.08.002. Epub 2014 Aug 15.