36 THE CHEMICAL CONSTITUTION OF THE PROTEINS 



Optically Active. 



Glycyl-d-alanine. 



Glycyl-d-aminobutyric acid. 



Glycyl-1-aminobutyric acid. 



Glycyl-d-valine. 



Glycyl-1-leucine. 



Glycyl-d-isoleucine. 



Glycyl-1-isoleucine. 



Glycyl-1-phenylalanine. 



Glycyl-1-tyrosine. 



Glycyl-j, 5-diiodo I-tyrosine. 



Monoglycyl-1-cystine. 



Glycyl-1-aspartic acid. 



Glycyl-d-glutamic acid. 



Glycyl-d-tryptophane. 



1-Alanyl-glycine. 



dl-Alanyl-d-alanine. 



d-Alanyl-d-alanine. 



d-Alanyl-d-valine. 



d-Alanyl-1-leucine. 



d-Alanyl-d-isoleucinc. 



d-Alanyl-1-tyrosine. 



d-Alanyl-3, 5-diiodo-l-tyrosine. 



d-Alanyl-d-tryptophane. 



d- Aminobutyryl-glycine. 



d-Aminobutyryl-d-alanine. 



1-Valyl-d-valine. 



d-Valyl-glycine. 



1-Leucyl-glycine. 



1-Leucyl-d-alanine. 



1-Leucyl-d-valine. 



1-Leucyl-l-leucine. 



d-Leucyl-1-leucine. 



d-Leucyl-d-leucine. 



1-Leucyl-d-leucine. 



1-Leucyl-d-isoleucine. 



1-Leucyl-l-isoleucine. 



mono-1-Leucyl-l-cystine. 



1-Leucyl-l-tyrosine. 



d-Leucyl-1-asparagine. 



l-Leucyl-1-asparagine. 



1-Leucyl-l-aspartic acid. 



1-Leucyl-d-glutamic acid. 



1-Leucyl-l-histidine. 



1-Leucyl-l-tryptophane. 



d-Leucyl-1-tryptophane. 



d-Isoleucyl-glycine. 



1-Phenylalanyl-glycine. 



