A monoclonal antibody, MF20, which has been shown previously to bind the myosin heavy chain of vertebrate striated muscle, has been proven to bind the light meromyosin (LMM) fragment by solid phase ...

PROTOZOA of the order Heliozoa are provided with numerous straight radiating processes known as axopods, which in certain genera (Actinophrys, Actinosphaerium) are known to be supported by axial ...

Stain reactions and electron microscopy indicate that the characteristic crystallographic structure of the sponge spicules is not the result of the growth of calcite over an organic precursor. The ...