???? ???? ???? ?? ????? ? ??? (????? ? ??? ???? ??????)...??? ?, ???? - ??:?? ??????? ???? ?????? ?? ??? ???? ?? ???? ???? ??????? ?? ??? ?????? ???? ????? ??? ???:??????? ??? ? ?????? ???? ????? ????? ?? ???? ?? ???? ????? ????? ??? ?? ??????? ????? ? ????? ?? ??? ???? ??????? ???? ???? ??????? ?????? ?? ?????? ????? ?????? ? ??????? ????? ?? ????

???? ????? ??????? ?? ????? ?? ???? ?? ??? ??? ????? ??????? ?? ????? ???.????? ????? ????? ??? ?????? ???? ????? ???? ???? ????? ???? ??????? ??????? ???? ? ? ???? ???? ?? ??? ???? ? ???? ???? ???? ????.?? ????? ???????? ????? ?? ????? ?? ?????? ????? ????.Streptavidin is really a tetrameric protein supplying 4 high-affinity biotin binding web sit