Abstract
Formins are potent actin assembly factors. Diaphanous formins, including mDia1, mDia2, and mDia3 in mammals, are implicated in mitosis and cytokinesis, but no chemical interactors have been reported. We developed an in vitro screen for inhibitors of actin assembly by mDia1 and identified an inhibitor of mDia1 and mDia2 that does not inhibit mDia3 at the concentrations tested. These results establish the druggability of mDia formins and introduce a first-generation inhibitor.
MeSH Terms
Actins/antagonists & inhibitors,metabolism
Adaptor Proteins, Signal Transducing/antagonists & inhibitors,chemistry,physiology
Animals
Carrier Proteins/antagonists & inhibitors,chemistry,physiology
Fetal Proteins/antagonists & inhibitors
Formins
Humans
Mice
Microfilament Proteins/antagonists & inhibitors
Microtubule-Associated Proteins/antagonists & inhibitors,chemistry,physiology
NADPH Dehydrogenase/antagonists & inhibitors,chemistry,physiology
Nuclear Proteins/antagonists & inhibitors
Protein Isoforms/antagonists & inhibitors,chemistry,physiology
Protein Structure, Tertiary/physiology
Pyrenes/chemistry
Sequence Homology, Amino Acid
Chemicals
Actins
Adaptor Proteins, Signal Transducing
Carrier Proteins
DIAPH1 protein, human
DIAPH2 protein, human
Diap2 protein, mouse
Fetal Proteins
Formins
Microfilament Proteins
Microtubule-Associated Proteins
Nuclear Proteins
Protein Isoforms
Pyrenes
Dia2 protein, mouse
NADPH Dehydrogenase
Authors & Affiliations
4 authors, click to expand affiliations / ORCID
Gauvin Timothy J
Department of Biochemistry, Dartmouth Medical School, Hanover, New Hampshire 03755, USA.
Fukui Jami
Peterson Jeffrey R
Higgs Henry N
References (11)
11 references, click to expand
-
INF2 Is a WASP homology 2 motif-containing formin that severs actin filaments and accelerates both polymerization and depolymerization.
J Biol Chem. 2006 Sep 8;281(36):26754-67
PMID: 16818491
-
Study of the reaction of proteins with Beryllon II-AlIII by the Rayleigh light scattering technique and its application.
Analyst. 2001 May;126(5):707-11
PMID: 11394319
-
mDia2 induces the actin scaffold for the contractile ring and stabilizes its position during cytokinesis in NIH 3T3 cells.
Mol Biol Cell. 2008 May;19(5):2328-38
PMID: 18287523
-
Review of the mechanism of processive actin filament elongation by formins.
Cell Motil Cytoskeleton. 2009 Aug;66(8):606-17
PMID: 19459187
-
Diaphanous-related formins bridge Rho GTPase and Src tyrosine kinase signaling.
Mol Cell. 2000 Jan;5(1):13-25
PMID: 10678165
-
Regulation of actin filament network formation through ARP2/3 complex: activation by a diverse array of proteins.
Annu Rev Biochem. 2001;70:649-76
PMID: 11395419
-
Cdc42 and mDia3 regulate microtubule attachment to kinetochores.
Nature. 2004 Apr 15;428(6984):767-71
PMID: 15085137
-
The mouse Formin mDia1 is a potent actin nucleation factor regulated by autoinhibition.
Curr Biol. 2003 Aug 5;13(15):1335-40
PMID: 12906795
-
Mechanistic differences in actin bundling activity of two mammalian formins, FRL1 and mDia2.
J Biol Chem. 2006 May 19;281(20):14383-92
PMID: 16556604
-
Crystal structures of a Formin Homology-2 domain reveal a tethered dimer architecture.
Cell. 2004 Mar 5;116(5):711-23
PMID: 15006353
-
The many faces of actin: matching assembly factors with cellular structures.
Nat Cell Biol. 2007 Oct;9(10):1110-21
PMID: 17909522