Formins: Emerging Players in the Dynamic Plant Cell Cortex

Formins (FH2 proteins) are an evolutionarily conserved family of eukaryotic proteins, sharing the common FH2 domain. While they have been, until recently, understood mainly as actin nucleators, formins are also engaged in various additional aspects of cytoskeletal organization and signaling, includi...

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Main Author: Fatima Cvrčková
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:Scientifica
Online Access:http://dx.doi.org/10.6064/2012/712605
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author Fatima Cvrčková
author_facet Fatima Cvrčková
author_sort Fatima Cvrčková
collection DOAJ
description Formins (FH2 proteins) are an evolutionarily conserved family of eukaryotic proteins, sharing the common FH2 domain. While they have been, until recently, understood mainly as actin nucleators, formins are also engaged in various additional aspects of cytoskeletal organization and signaling, including, but not limited to, the crosstalk between the actin and microtubule networks. A surprising diversity of domain organizations has been discovered among the FH2 proteins, and specific domain setups have been found in plants. Seed plants have two clades of formins, one of them (Class I) containing mostly transmembrane proteins, while members of the other one (Class II) may be anchored to membranes via a putative membrane-binding domain related to the PTEN antioncogene. Thus, plant formins present good candidates for possible mediators of coordination of the cortical actin and microtubule cytoskeletons, as well as their attachment to the plasma membrane, that is, aspects of cell cortex organization likely to be important for cell and tissue morphogenesis. Although experimental studies of plant formin function are hampered by the large number of formin genes and their functional redundancy, recent experimental work has already resulted in some remarkable insights into the function of FH2 proteins in plants.
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spelling doaj-art-acdb085d54a84301975d8b26f7aa29292025-08-20T02:20:22ZengWileyScientifica2090-908X2012-01-01201210.6064/2012/712605712605Formins: Emerging Players in the Dynamic Plant Cell CortexFatima Cvrčková0Department of Experimental Plant Biology, Faculty of Science, Charles University, Viničná 5, 128 43 Prague, Czech RepublicFormins (FH2 proteins) are an evolutionarily conserved family of eukaryotic proteins, sharing the common FH2 domain. While they have been, until recently, understood mainly as actin nucleators, formins are also engaged in various additional aspects of cytoskeletal organization and signaling, including, but not limited to, the crosstalk between the actin and microtubule networks. A surprising diversity of domain organizations has been discovered among the FH2 proteins, and specific domain setups have been found in plants. Seed plants have two clades of formins, one of them (Class I) containing mostly transmembrane proteins, while members of the other one (Class II) may be anchored to membranes via a putative membrane-binding domain related to the PTEN antioncogene. Thus, plant formins present good candidates for possible mediators of coordination of the cortical actin and microtubule cytoskeletons, as well as their attachment to the plasma membrane, that is, aspects of cell cortex organization likely to be important for cell and tissue morphogenesis. Although experimental studies of plant formin function are hampered by the large number of formin genes and their functional redundancy, recent experimental work has already resulted in some remarkable insights into the function of FH2 proteins in plants.http://dx.doi.org/10.6064/2012/712605
spellingShingle Fatima Cvrčková
Formins: Emerging Players in the Dynamic Plant Cell Cortex
Scientifica
title Formins: Emerging Players in the Dynamic Plant Cell Cortex
title_full Formins: Emerging Players in the Dynamic Plant Cell Cortex
title_fullStr Formins: Emerging Players in the Dynamic Plant Cell Cortex
title_full_unstemmed Formins: Emerging Players in the Dynamic Plant Cell Cortex
title_short Formins: Emerging Players in the Dynamic Plant Cell Cortex
title_sort formins emerging players in the dynamic plant cell cortex
url http://dx.doi.org/10.6064/2012/712605
work_keys_str_mv AT fatimacvrckova forminsemergingplayersinthedynamicplantcellcortex