The proteome of cytomatrix and cytosol

The cytoplasm is an essential part of the cell involved in protein synthesis, energy generation, nutrient processing, transport, metabolism, and homeostasis, but its structure and function are not entirely understood. Almost five decades ago, dynamic nano-compartments of the cytoplasm were observed by high voltage electron microscopy in every living cell. However, the validity of these constructs, have been questioned and counterclaimed as artifacts of histo-techniques. We developed a new method to separate and characterize two different cytoplasmic compartments that we named cytomatrix and cytosol (or cytomedia). Using two compositional different solvents we were able sequentially extract the cytosol (cyto-solution) first then separate the cytomatrix from the nucleus. Our method allows fractionate the cell into three fractions: the cytosol, cytomatrix, and the nucleus.