Th3 form of 

 most fraquontly in 

 conn Oct ion lD3twien 

 of a C3ntra] ^^arbo 

 which aro usua]ly 

 atoms of amino aci 

 from such connscti 

 a study of protein 

 two typ^s of such 

 pro t 3 ins . 



16. 



connecting complex which occurs 

 natur3 appears to be a triple 

 thrcD adjacant spirals by m, 3-^ns 

 n atom. The compl 3X groups 

 attach 3d to the alpha carbon 

 ds arc 3vid3ntly the fragments 

 ng comp] exes. It appears from 



d 3composit ion products that 

 tripl 3 connections occur in 



Leucine, phenyl -al an in e, and tyrosine have 

 a triple junction at th 3 gamma carbon atom, with 

 an intermediate -CHo- group between this triple 

 junction and the -CH IHig-COOH group. The complete 

 tripl 3 junction, (assuming it to be the same on 

 all thr3e sides,) tog 3th er with one-half of each 

 of the three adjacent spirals, will therefore 

 app ear s omi ewh at as follows: 



OC 



MI 



\ 



\ 



CH 



CH^ 



CH 



CH, 



CK, 



1^: — CH 



CH 



CO 



CO 



HF 



A triple junction of the gamima-gamma-garrima type. 



