Center for Algorithmic Biotechnology, Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg, Russia.|Department of Computer Science and Engineering, University of California at San Diego, La Jolla, CA, USA.|Universal Sequencing Technology Corporation, Carlsbad, CA, USA.|Center for Algorithmic Biotechnology, Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg, Russia.