Oxyprol ina 



HOCK 



6. 



CH. 



CH. 



COOK 

 f 



CH 

 » 



Glycine-prolin 3 anhydride 



(E. A"b4erhald*n & 15. Komrn, 

 Z. physiol. Ch-TH., 145, 308, 19.^5.) 



Hp,Q 



K^C 



/ 



CO — CH 



/ 



TJ 



\ 



CH — 



CH. 



^ 





UK 



/ 



CO 



Glutamic acid 



HOOC-CHg-CHg- 



COOK 



! 



■CH 

 t 



ITK^ 



Ornithine 



COOK 

 f 



NHg-CK^-CHg-CHg— CH 



rlH 



o 



