Amino Acid Sequence Comparison of DsrP Protein from Proteobacteria to Analyze the Probable Molecular Mechanism of Sulfur Oxidation Process

Sulfur metabolism, the oldest known redox processes mediated by dsr operon, maintains the environmental sulfur balance. DsrP protein from the dsr operon transports electrons from the environmental sulfur substrates for performing the reactions. We therefore, tried to analyze the probable molecular basis of DsrP proteins using only the sequence information. We also tried to predict the effects of the mutations present in the sequences of DsrP proteins and a phylogenetic relationship between the organisms possessing the operon has been drawn. Our study may therefore shed light in the hitherto unknown biochemical mechanism of the sulfur oxidation process through dsr operon.