Active ARF recruits coatomer

Stable Identifier
Reaction [binding]
Homo sapiens
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Activation of ARF is tightly linked to the recruitment of the COPI coat (Donaldson et al, 1991; Serafini et al, 1991; Donaldson et el, 1992; Palmer et al, 1993; reveiwed in Szul and Sztul, 2011). Studies in yeast and in mammalian cells support a direct interaction between the GTPase and components of the COPI coat; recruitment may also be facilitated by interactions with p24 family members (Zhao et al, 1997; Zhao et al, 1999; Zhao et al, 2006; Eugster et al, 2000; Aguillera-Ramiero et al, 2008; Sun et al, 2007; Yu et al, 2012; Harter and Wieland, 1998; Bethune et al, 2006; reviewed in Popoff et al, 2011). The COPI coat consists of 7 subunits arranged in 2 subcomplexes. The inner coat is made up of a tetrameric complex consisting of the beta, gamma, zeta and delta COPI subunits, while the outer coat is a trimer consisting of the alpha, beta prime and epsilon subunits (Eugster et al, 2000; Waters et al, 1991). Both of the zeta and gamma subunits have 2 isoforms with different subcellular locations, suggesting that different COPI coats may mediate different steps of the secretory pathway (Moelleken et al, 2007). Unlike the case for COPII or clathrin coats, all components of the COPI coat are recruited simultaneously as a preformed heptameric complex (Hara-Kuge et al, 1994)

Literature References
PubMed ID Title Journal Year
22013193 COPII and COPI traffic at the ER-Golgi interface

Sztul, E, Szul, T

Physiology (Bethesda) 2011
9114004 Direct and GTP-dependent interaction of ADP ribosylation factor 1 with coatomer subunit beta

Brugger, B, Zhao, L, Harter, C, Wieland, FT, Graf, R, Helms, JB, Brunner, J, Martoglio, B

Proc. Natl. Acad. Sci. U.S.A. 1997
1631136 ADP-ribosylation factor, a small GTP-binding protein, is required for binding of the coatomer protein beta-COP to Golgi membranes

Donaldson, JG, Klausner, RD, Kahn, RA, Cassel, D

Proc. Natl. Acad. Sci. U.S.A. 1992
16926190 GBF1, a cis-Golgi and VTCs-localized ARF-GEF, is implicated in ER-to-Golgi protein traffic

Presley, JF, Melançon, P, Claude, A, Zhao, X, Chun, J, Shields, DJ

J. Cell. Sci. 2006
10921873 COP I domains required for coatomer integrity, and novel interactions with ARF and ARF-GAP

Frigerio, G, Eugster, A, Dale, M, Duden, R

EMBO J. 2000
16940185 Coatomer, the coat protein of COPI transport vesicles, discriminates endoplasmic reticulum residents from p24 proteins

Wieland, F, Brugger, B, Hoffmann, J, Reckmann, I, Kol, M, Béthune, J

Mol. Cell. Biol. 2006
22304919 A structure-based mechanism for Arf1-dependent recruitment of coatomer to membranes

Yu, X, Goldberg, J, Breitman, M

Cell 2012
1680566 ADP-ribosylation factor is a subunit of the coat of Golgi-derived COP-coated vesicles: a novel role for a GTP-binding protein

Serafini, T, Brunner, M, Orci, L, Amherdt, M, Rothman, JE, Kahn, RA

Cell 1991
8132710 En bloc incorporation of coatomer subunits during the assembly of COP-coated vesicles

Ravazzola, M, Orci, L, Hara-Kuge, S, Amherdt, M, Wieland, FT, Rothman, JE, Kuge, O

J. Cell Biol. 1994
1957170 Binding of ARF and beta-COP to Golgi membranes: possible regulation by a trimeric G protein

Lippincott-Schwartz, J, Donaldson, JG, Klausner, RD, Kahn, RA

Science 1991
17360540 Differential localization of coatomer complex isoforms within the Golgi apparatus

Russell, RB, Moelleken, J, Meissner, I, Söllner, T, Betts, MJ, Brugger, B, Wieland, FT, Malsam, J, Hellwig, A, Movafeghi, A, Reckmann, I

Proc. Natl. Acad. Sci. U.S.A. 2007
10318838 GTP-dependent binding of ADP-ribosylation factor to coatomer in close proximity to the binding site for dilysine retrieval motifs and p23

Zhao, L, Wieland, FT, Helms, JB, Brunner, J

J. Biol. Chem. 1999
9751720 A single binding site for dilysine retrieval motifs and p23 within the gamma subunit of coatomer

Harter, C, Wieland, FT

Proc. Natl. Acad. Sci. U.S.A. 1998
17451557 Multiple and stepwise interactions between coatomer and ADP-ribosylation factor-1 (Arf1)-GTP

Wieland, F, Brugger, B, Zhao, L, Fröhlich, K, Anderl, F, Béthune, J, Hanke, S, Sun, Z

Traffic 2007
21844168 COPI budding within the Golgi stack

Popoff, V, Wieland, F, Adolf, F, Brugger, B

Cold Spring Harb Perspect Biol 2011
18283113 The yeast p24 complex is required for the formation of COPI retrograde transport vesicles from the Golgi apparatus

Muñiz, M, Riezman, H, Kaminska, J, Spang, A, Aguilera-Romero, A

J. Cell Biol. 2008
1898986 'Coatomer': a cytosolic protein complex containing subunits of non-clathrin-coated Golgi transport vesicles

Serafini, T, Waters, MG, Rothman, JE

Nature 1991
8505331 Binding of coatomer to Golgi membranes requires ADP-ribosylation factor

Orci, L, Beckers, CJ, Palmer, DJ, Helms, JB, Rothman, JE

J. Biol. Chem. 1993
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