Why only L amino acids?

6566friedman at vms.csd.mu.edu 6566friedman at vms.csd.mu.edu
Wed Jul 6 14:56:35 EST 1994

Does anyone have a plausible hypothesis to explain why only L amino 
acids are used in proteins?  I am teaching an introductory course in 
biochemistry this summer and this question was raised by a student.  
Please send your answers to:


Alan Friedman
Dept Biology
Marquette University
Milwaukee, WI  

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