Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA.|Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA.|Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA.|Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA.|Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA.|Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA.|Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA.|Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA.