ABSTRACT
We have used docking techniques in order to propose potential inhibitors to the enzymes adenosine phosphosulfate reductase and adenosine triphosphate sulfurylase that are responsible, among other deleterious effects, for causing souring of oil and gas reservoirs. Three candidates selected through molecular docking revealed new and improved polar and hydrophobic interactions with the above-mentioned enzymes. Microbiological laboratory assays performed subsequently corroborated the results of computer modelling that the three compounds can efficiently control the biogenic sulfide production.
Subject(s)
Ligands , Molecular Docking Simulation , Binding Sites , Enzyme Inhibitors/chemistry , Enzyme Inhibitors/pharmacology , Models, Molecular , Molecular Conformation , Molecular Dynamics Simulation , Oxidoreductases Acting on Sulfur Group Donors/antagonists & inhibitors , Oxidoreductases Acting on Sulfur Group Donors/chemistry , Protein Binding , Sulfate Adenylyltransferase/antagonists & inhibitors , Sulfate Adenylyltransferase/chemistryABSTRACT
The biogenic production of hydrogen sulfide gas by sulfate-reducing bacteria (SRB) causes serious economic problems for natural gas and oil industry. One of the key enzymes important in this biologic process is adenosine phosphosulfate reductase (APSr). Using virtual screening technique we have discovered 15 compounds that are novel potential APSr inhibitors. Three of them have been selected for molecular docking and microbiological studies which have shown good inhibition of SRB in the produced water from the oil industry.
