CELLULOSE-PROTEIN COMPLEXES 



237 



fibrils. It seems unnecessary to coin a new terminology in order to 

 include the chance aggregates of variable size, and the term "micro- 

 fibrils" will be used here as referring to the unit of structure only. 



TABLE 1 

 Composition of Celluloses from Various Sources 



S. M., W refer to the intensity of the 

 chromatogram. S = strong; M = medium 



spot on the 

 W = weak. 



Any protein which complexes with this structure must be able to 

 associate with a variety of sugars just as it appears to do in animals. 

 Such a complex will be possible presumably only if the surfaces 

 of the microfibril and the protein have structural features in com- 

 mon, and there is some crystallographic evidence that this may be so. 



