Literature DB >> 2943602

Prosomes exist in plant cells too.

A Kremp, M Schliephacke, U Kull, H P Schmid.   

Abstract

A 19S particle was purified from tobacco (Nicotiana rustica) leaf cells. Its density was determined as 1296 g/cm3 in Cs2SO4-DMSO gradients, indicating the presence of RNA and protein. Polyacrylamide gel electrophoresis (PAGE) revealed eight distinct proteins in the range of 20-30 kD and RNA in the range of 70-80 nucleotides. Electron microscopic examination showed the same raspberry-shaped structure with a central depression as described for prosomes. We conclude that tobacco 19S particles represent small cytoplasmic complexes, possessing biochemical and structural characteristics similar to the hither-to known prosomes of animal cells.

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Year:  1986        PMID： 2943602     DOI： 10.1016/0014-4827(86)90500-8

Source DB:  PubMed          Journal:  Exp Cell Res        ISSN： 0014-4827            Impact factor:   3.905


  8 in total

1.  Disruption of prosomes by some bivalent metal ions results in the loss of their multicatalytic proteinase activity and cancels the nuclease resistance of prosomal RNA.

Authors:  H G Nothwang; O Coux; F Bey; K Scherrer
Journal:  Biochem J       Date:  1992-11-01       Impact factor: 3.857

Review 2.  Prosomes, subcomplexes of untranslated mRNP.

Authors:  K Scherrer
Journal:  Mol Biol Rep       Date:  1990-02       Impact factor: 2.316

3.  Cytoplasmic heat shock granules are formed from precursor particles and are associated with a specific set of mRNAs.

Authors:  L Nover; K D Scharf; D Neumann
Journal:  Mol Cell Biol       Date:  1989-03       Impact factor: 4.272

4.  Molecular organization of the 20S proteasome gene family from Arabidopsis thaliana.

Authors:  H Fu; J H Doelling; C S Arendt; M Hochstrasser; R D Vierstra
Journal:  Genetics       Date:  1998-06       Impact factor: 4.562

5.  An Arabidopsis gene homologous to mammalian and insect genes encoding the largest proteasome subunit.

Authors:  B W Shirley; H M Goodman
Journal:  Mol Gen Genet       Date:  1993-12

6.  An abundant and ubiquitous homo-oligomeric ring-shaped ATPase particle related to the putative vesicle fusion proteins Sec18p and NSF.

Authors:  J M Peters; M J Walsh; W W Franke
Journal:  EMBO J       Date:  1990-06       Impact factor: 11.598

7.  The association of prosomes with some of the intermediate filament networks of the animal cell.

Authors:  M F Grossi de Sa; C Martins de Sa; F Harper; M Olink-Coux; M Huesca; K Scherrer
Journal:  J Cell Biol       Date:  1988-10       Impact factor: 10.539

8.  Cell-specific accumulation of Drosophila proteasomes (MCP) during early development.

Authors:  U Klein; M Gernold; P M Kloetzel
Journal:  J Cell Biol       Date:  1990-12       Impact factor: 10.539
  8 in total

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