op 



A carbonyl carbon atom should "be abl o to 

 units in this mann2r with two nitrogsn atoms of 

 an adjacent spiral, and since it is already joined 

 to one nitrogen atom of th ? same spiral, thare will 

 bs produced in this manner th? guanidine complex 

 which occurs at one 3nd of the arginine rKolecuJe. 

 The three intarmediate -CHq* groups of the arginine 

 molecule are exactly the number that would occur 

 in passing over to the next adjacent spiral if the 

 intermediate junction is partly of the beta and 

 partly of the gamma type. 



HCH 



CH 



OC 



im 



Arginine in situ. 



