Document Detail


Prokaryotic cells: structural organisation of the cytoskeleton and organelles.
MedLine Citation:
PMID:  22510822     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
For many years, prokaryotic cells were distinguished from eukaryotic cells based on the simplicity of their cytoplasm, in which the presence of organelles and cytoskeletal structures had not been discovered. Based on current knowledge, this review describes the complex components of the prokaryotic cell cytoskeleton, including (i) tubulin homologues composed of FtsZ, BtuA, BtuB and several associated proteins, which play a fundamental role in cell division, (ii) actin-like homologues, such as MreB and Mb1, which are involved in controlling cell width and cell length, and (iii) intermediate filament homologues, including crescentin and CfpA, which localise on the concave side of a bacterium and along its inner curvature and associate with its membrane. Some prokaryotes exhibit specialised membrane-bound organelles in the cytoplasm, such as magnetosomes and acidocalcisomes, as well as protein complexes, such as carboxysomes. This review also examines recent data on the presence of nanotubes, which are structures that are well characterised in mammalian cells that allow direct contact and communication between cells.
Authors:
Wanderley de Souza
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Memórias do Instituto Oswaldo Cruz     Volume:  107     ISSN:  1678-8060     ISO Abbreviation:  Mem. Inst. Oswaldo Cruz     Publication Date:  2012 May 
Date Detail:
Created Date:  2012-04-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7502619     Medline TA:  Mem Inst Oswaldo Cruz     Country:  Brazil    
Other Details:
Languages:  eng     Pagination:  283-93     Citation Subset:  IM    
Affiliation:
Laboratório de Ultraestrutura Celular Hertha Meyer, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil, 21941-900.
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