A.N.Belozersky Institute of Physical and Chemical Biology, Moscow State University, Moscow, Russia. sas@belozersky.msu.ru|A.N.Belozersky Institute of Physical and Chemical Biology, Moscow State University, Moscow, Russia. sas@belozersky.msu.ru|A.N.Belozersky Institute of Physical and Chemical Biology, Moscow State University, Moscow, Russia. sas@belozersky.msu.ru|A.N.Belozersky Institute of Physical and Chemical Biology, Moscow State University, Moscow, Russia. sas@belozersky.msu.ru