FUNCTION: Acts as a nucleation-promoting factor (NPF) that stimulates Arp2/3-mediated actin polymerization both at the Golgi apparatus and along tubular membranes. Its activity in membrane tubulation requires F-actin and interaction with microtubules. Proposed to use coordinated actin-nucleating and...
FUNCTION: Acts as a nucleation-promoting factor (NPF) that stimulates Arp2/3-mediated actin polymerization both at the Golgi apparatus and along tubular membranes. Its activity in membrane tubulation requires F-actin and interaction with microtubules. Proposed to use coordinated actin-nucleating and microtubule-binding activities of distinct WHAMM molecules to drive membrane tubule elongation; when MT-bound can recruit and remodel membrane vesicles but is prevented to activate the Arp2/3 complex. Involved as a regulator of Golgi positioning and morphology. Participates in vesicle transport between the reticulum endoplasmic and the Golgi complex. Required for RhoD-dependent actin reorganization such as in cell adhesion and cell migration. {ECO:0000269|PubMed:18614018, ECO:0000269|PubMed:23027905, ECO:0000269|PubMed:23087206}.
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GO - Biological processes (BP):
actin filament organization [GO:0007015]; actin filament reorganization [GO:0090527]; Arp2/3 complex-mediated actin nucleation [GO:0034314]; endoplasmic reticulum to Golgi vesicle-mediated transport [GO:0006888]; focal adhesion assembly [GO:0048041]; lamellipodium assembly [GO:0030032]; plasma membr...
actin filament organization [GO:0007015]; actin filament reorganization [GO:0090527]; Arp2/3 complex-mediated actin nucleation [GO:0034314]; endoplasmic reticulum to Golgi vesicle-mediated transport [GO:0006888]; focal adhesion assembly [GO:0048041]; lamellipodium assembly [GO:0030032]; plasma membrane tubulation [GO:0097320]; positive regulation of actin nucleation [GO:0051127]
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GO - Molecular function (MF):
actin binding [GO:0003779]; Arp2/3 complex binding [GO:0071933]; microtubule binding [GO:0008017]; small GTPase binding [GO:0031267]...
actin binding [GO:0003779]; Arp2/3 complex binding [GO:0071933]; microtubule binding [GO:0008017]; small GTPase binding [GO:0031267]
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GO - Cellular component (CC):
cytoplasm [GO:0005737]; cytoplasmic vesicle membrane [GO:0030659]; cytosol [GO:0005829]; endoplasmic reticulum-Golgi intermediate compartment membrane [GO:0033116]; Golgi membrane [GO:0000139]; microtubule [GO:0005874]...
cytoplasm [GO:0005737]; cytoplasmic vesicle membrane [GO:0030659]; cytosol [GO:0005829]; endoplasmic reticulum-Golgi intermediate compartment membrane [GO:0033116]; Golgi membrane [GO:0000139]; microtubule [GO:0005874]
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