Proteomics

Dataset Information

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The proteome of cytomatrix and cytosol


ABSTRACT: 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.

INSTRUMENT(S): Orbitrap Fusion Lumos

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Permanent Cell Line Cell

SUBMITTER: Nelufa Islam  

LAB HEAD: Tattym E Shaiken

PROVIDER: PXD031043 | Pride | 2023-03-11

REPOSITORIES: pride

Dataset's files

Source:
Action DRS
47363_2_MSPCL_718_none_2ug_F1.msf Msf
47363_2_MSPCL_718_none_2ug_F1.raw Raw
47363_2_MSPCL_718_none_2ug_F2.msf Msf
47363_2_MSPCL_718_none_2ug_F2.raw Raw
47363_2_MSPCL_718_none_2ug_F3.msf Msf
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Publications


Despite the knowledge that protein translation and various metabolic reactions that create and sustain cellular life occur in the cytoplasm, the structural organization within the cytoplasm remains unclear. Recent models indicate that cytoplasm contains viscous fluid and elastic solid phases. We separated these viscous fluid and solid elastic compartments, which we call the cytosol and cytomatrix, respectively. The distinctive composition of the cytomatrix included structural proteins, ribosomes  ...[more]

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