Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119899, Russia. aml@genebee.msu.su|Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119899, Russia. aml@genebee.msu.su|Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119899, Russia. aml@genebee.msu.su