Why only L amino acids?

John E. Fox altabios at bham.ac.uk
Tue Jul 12 07:44:05 EST 1994

In article <00981067.D5F37D80 at vms.csd.mu.edu>, 6566friedman at vms.csd.mu.edu says:
>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  

I agree with the others, its most probably by chance that one dominates.
There are some theories that minerals acted as early templates, could these
have some prefered orientation?

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