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Cytokinesis: does Mid1 have an identity crisis?
1Department of Biochemistry, The Geisel School of Medicine at Dartmouth, Hanover, NH 03755, USA.
Current Biology : CB
|May 6, 2015
Summary
The anillin-related protein Mid1 does not position the cytokinetic ring in Schizosaccharomyces japonicus. Its conserved function across species appears to be scaffolding, not positioning, the cell division ring.
Area of Science:
- Cell biology
- Microbiology
- Genetics
Background:
- The anillin-related protein Mid1 plays a crucial role in cytokinesis in the fission yeast Schizosaccharomyces pombe.
- Understanding the conserved functions of Mid1 across different yeast species is important for cell division research.
Purpose of the Study:
- To investigate the role of the anillin-related protein Mid1 in cytokinesis in Schizosaccharomyces japonicus.
- To compare the function of Mid1 in Schizosaccharomyces japonicus with its known role in Schizosaccharomyces pombe.
Main Methods:
- Comparative analysis of Mid1 protein function in Schizosaccharomyces japonicus and Schizosaccharomyces pombe.
- Genetic and cell biological techniques to study cytokinesis and protein localization.
Main Results:
- Mid1 does not position the cytokinetic ring in Schizosaccharomyces japonicus.
- Evidence suggests Mid1's conserved function is likely scaffolding, not positioning, the cytokinetic ring.
Conclusions:
- The role of Mid1 in cytokinesis is not conserved between Schizosaccharomyces japonicus and Schizosaccharomyces pombe.
- The conserved function of Mid1-like anillin proteins may be in the structural scaffolding of the cytokinetic ring, rather than its precise spatial positioning.
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