metabolic labeling in e.coli

[Sai]

hey all,
         anybody know of any good references to metabolically label fusion
proteins made in e.coli ??  i'm thinking specifically about tritiated
leucine...please email to sai at uab.edu .  thanks...

-- 
Sai Iyer (sai at uab.edu)
Pre-doctoral fellow i.e lowly graduate student (Dr.Gerald Hart's lab)
Dept of Biochemistry and Molecular Genetics
University of Alabama at Birmingham...