Byrne: Different Classes of Proteins

The muscles of the Cod (Gadus morhua) contain the muscle fibers actin and myosin, contractile proteins. 42.359,-71.049

the feather of the Blue jay, Cyanocitta cristata, contains keratin, a structural protein 42.258,-71.616

 

the blood of the Atlantic Harbor Seal (Phoca vitulina) contains hemoglobin, a transport protein. 42.359,-71.049