[At the plant side of formins--organizers of the actin cytoskeleton].
Rearrangements of actin cytoskeleton enable proper functioning of the cells under normal conditions, and also cellular adaptations to changes in the direct surroundings. Formins are actin binding proteins, responsible for actin nucleation and further elongation of microfilaments. The distinguishing feature of formins is the presence of conserved FH2 (formin homology domain 2) domain, as well as other domains typical for distinct formin classes. In animal cells formins are involved in cytokinesis and determination and maintenance of the cell shape and polarity, but also in the formation of filopodia, endocytosis and many other processes. The presence of proteins from the formin family in plant cells, and their involvement in the tip growth and cytokinesis, has been determined only recently. As the functional organization of plant and animal cells is different, one can assume that the range of putative functions of plant formins might also be diverse. One of such proposed functions for formins in plants is the role of linker protein within WMC continuum (cell wall-plasma membrane-cytoskeleton). Unfortunately, for that moment the state of knowledge about plant formins in comparison with animal or fungal ones is much poorer.
Maruniewicz
Michalina
M
Zakład Biologii Molekularnej i Komórkowej, Wydział Biologii, Uniwersytet im. Adama Mickiewicza, Poznań.
Kasprowicz
Anna
A
Wojtaszek
Przemysław
P
D000199:Actins / Q000378:metabolism*; D000818:Animals; D003599:Cytoskeleton / Q000502:physiology*; D004705:Endocytosis / Q000502:physiology; D008840:Microfilament Proteins / Q000378:metabolism*; D059828:Plant Cells; D018521:Plant Physiological Phenomena / Q000502:physiology*; D010944:Plants / Q000235:genetics; D011554:Pseudopodia; D015398:Signal Transduction / Q000502:physiology; D013045:Species Specificity
D000199:Actins; D008840:Microfilament Proteins