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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Nat+Commun
2017 ; 8
(1
): 1530
Nephropedia Template TP
gab.com Text
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English Wikipedia
Cytokinesis requires localized ?-actin filament production by an actin isoform
specific nucleator
#MMPMID29146911
Chen A
; Arora PD
; McCulloch CA
; Wilde A
Nat Commun
2017[Nov]; 8
(1
): 1530
PMID29146911
show ga
Cytokinesis is initiated by the localized assembly of the contractile ring, a
dynamic actomyosin structure that generates a membrane furrow between the
segregating chromosomal masses to divide a cell into two. Here we show that the
stabilization and organization of the cytokinetic furrow is specifically
dependent on localized ?-actin filament assembly at the site of cytokinesis.
?-actin filaments are assembled directly at the furrow by an anillin-dependent
pathway that enhances RhoA-dependent activation of the formin DIAPH3, an actin
nucleator. DIAPH3 specifically generates homopolymeric filaments of ?-actin in
vitro. By employing enhancers and activators, cells can achieve acute
spatio-temporal control over isoform-specific actin arrays that are required for
distinct cellular functions.
|Actin Cytoskeleton/*metabolism
[MESH]
|Actins/*metabolism
[MESH]
|Actomyosin/metabolism
[MESH]
|Adaptor Proteins, Signal Transducing/*metabolism
[MESH]