2012
DOI: 10.1083/jcb.201112085
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Class II formin targeting to the cell cortex by binding PI(3,5)P2 is essential for polarized growth

Abstract: PI(3,5)P2 is directly linked to generation and remodeling of the cortical actin array by formin during polarized cell growth in plants.

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Cited by 88 publications
(87 citation statements)
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“…How these spores move without Arp2/3 is an intriguing question; perhaps they rapidly polymerize microfilaments with the aid of other nucleating machinery, such as formins (22), which are present. However, although formins in many animals, fungi, and plants are members of expanded gene families that have been differentiated to support processes required to build complex morphologies (e.g., polarized tip growth and cell plate orientation) (25,26), Porphyra has only two formins (SI Appendix, Table S15). In addition to formins, Porphyra and other red algae (SI Appendix, Tables S15 and S16) contain profilin, which interacts with formins; cofilin, a key depolymerizing factor; and severin, which cuts microfilaments to promote remodeling.…”
Section: Resultsmentioning
confidence: 99%
“…How these spores move without Arp2/3 is an intriguing question; perhaps they rapidly polymerize microfilaments with the aid of other nucleating machinery, such as formins (22), which are present. However, although formins in many animals, fungi, and plants are members of expanded gene families that have been differentiated to support processes required to build complex morphologies (e.g., polarized tip growth and cell plate orientation) (25,26), Porphyra has only two formins (SI Appendix, Table S15). In addition to formins, Porphyra and other red algae (SI Appendix, Tables S15 and S16) contain profilin, which interacts with formins; cofilin, a key depolymerizing factor; and severin, which cuts microfilaments to promote remodeling.…”
Section: Resultsmentioning
confidence: 99%
“…Inverted formin-2 (INF2) and formin-like protein 2 (FMNL2, also known as FRL3) are also farnesylated and myristoylated, respectively, which promotes their membrane targeting (Chhabra et al, 2009;Block et al, 2012). Moreover, mDia1 and mDia2, as well as the plant formins AFH1, formin1 and class II formin, directly bind phospholipid membranes (Cheung et al, 2010;Ramalingam et al, 2010;Gorelik et al, 2011;Martinière et al, 2011;van Gisbergen et al, 2012). These observations show that localization and activation of formins depend on their diverse interactions and that localization and activation, in some cases, serve as convergent inputs from multiple signalling pathways.…”
Section: Localization and Activation Of Forminsmentioning
confidence: 99%
“…To verify the expression of ROP proteins, moss protoplasts were transformed and processed for immunoblotting, as described previously (van Gisbergen et al, 2012). Immunoblotting was performed with a rabbit anti-AtROP2 serum (Zhang et al, 2010).…”
Section: Immunoblottingmentioning
confidence: 99%