title: Effect of Silver Nanoparticles Against the Formation of Biofilm by Pseudomonas aeruginosa an In silico Approach.
abstract: Studies were undertaken to examine the mechanism of mediation of silver nanoparticles in inhibiting biofilm formation by Pseudomonas aeruginosa through LuxI/LuxR system of signal transduction. This study includes the basic signaling transduction mechanism LasR, QscR, RhlR, and Vfr signaling model systems. The arbitrary homology models built with the I-TASSER server were evaluated and validated with the Qmean web server. Based on the Z-score and the relative square mean distance (RMSD) values, the structures were validated. The interaction results of the nanoparticle with the rigid docking proved the requirement of minimal energy for the inhibition of the protein active site by the silver nanoparticle. This principle docking experiment suggests that the biofilm formation in Gram-negative bacteria can be inhibited by the silver nanoparticles at the signal transduction level. Graphical abstract Systematic outline of present study; Stage one provides the data sampling and generation of pdb systems to conform the structure of bacterial signal sytems like LasR/LasI; RhlR/RhrI; QscR/QscI; VfrR/VfrI. Stage two involves docking of silver nanoparticles with Bacterial signal protein strucutres which are listed in Stage one. The Final Stage involves in understanding the development of appropriate mechanism behind the biofilm inhibition by silver nanoparticles.
authors.affiliation: Department of Microbiology, Sri Krishnadevaraya University, Anantapuramu, AP, India.
authors.forename: Satyanarayana Swamy
authors.initials: SS
authors.lastname: Vyshnava
authors.affiliation: Department of Microbiology, Sri Krishnadevaraya University, Anantapuramu, AP, India. kanderidileepkumar@gmail.com.
authors.forename: Dileep Kumar
authors.initials: DK
authors.lastname: Kanderi
authors.affiliation: Department of Genetics, Osmania University, Hyderabad, Telangana, India.
authors.forename: Shiva Prasad
authors.initials: SP
authors.lastname: Panjala
authors.affiliation: Department of Genomics, Central University of Kerala, Kasargod, Kerala, India.
authors.forename: Kamesh
authors.initials: K
authors.lastname: Pandian
authors.affiliation: Department of Microbiology, Sri Krishnadevaraya University, Anantapuramu, AP, India.
authors.forename: Rajasekhar Reddy
authors.initials: RR
authors.lastname: Bontha
authors.affiliation: Department of Microbiology, Sri Krishnadevaraya University, Anantapuramu, AP, India.
authors.forename: Praveen Kumar Reddy
authors.initials: PK
authors.lastname: Goukanapalle
authors.affiliation: Princess Al-Jawhara Al-Brahim, Center of Excellence in Research of Hereditary Disorders, King Abdulaziz University, Jeddah, Saudi Arabia.
authors.forename: Babajan
authors.initials: B
authors.lastname: Banaganapalli
mesh_terms: D001426:Bacterial Proteins / Q000737:chemistry; D018441:Biofilms / Q000187:drug effects*; D003198:Computer Simulation; D008024:Ligands; D053768:Metal Nanoparticles / Q000737:chemistry*; D008958:Models, Molecular; D011550:Pseudomonas aeruginosa / Q000187:drug effects / Q000502:physiology*; D015203:Reproducibility of Results; D012834:Silver / Q000494:pharmacology*
chemical_list: D001426:Bacterial Proteins; D008024:Ligands; D012834:Silver
keywords: Biofilm; Docking; LasR; Modeling; Qmean; QscR; RMSD; RhlR; Silver nanoparticle; Vfr; Z-score