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Title: Epsin 1 Undergoes Nucleocytosolic Shuttling and Its Eps15 Interactor Nh2-Terminal Homology (Enth) Domain, Structurally Similar to Armadillo and Heat Repeats, Interacts with the Transcription Factor Promyelocytic Leukemia Zn2+ Finger Protein (Plzf)

Journal Article · · Journal of Cell Biology
 [1];  [2];  [3];  [4];  [1]
  1. Yale Univ., New Haven, CT (United States). Dept. of Molecular Biophysics and Biochemistry; Yale Univ., New Haven, CT (United States) Howard Hughes Medical Inst.
  2. Yale Univ., New Haven, CT (United States). Dept. of of Cell Biology; Yale Univ., New Haven, CT (United States). Howard Hughes Medical Inst.
  3. European Inst. of Oncology, Milan (Italy). Dept. of Experimental Oncology
  4. Yale Univ., New Haven, CT (United States). Dept. of of Cell Biology; Yale Univ., New Haven, CT (United States). Howard Hughes Medical Inst.

Epsin (Eps15 interactor) is a cytosolic protein involved in clathrin-mediated endocytosis via its direct interactions with clathrin, the clathrin adaptor AP-2, and Eps15. The NH2-terminal portion of epsin contains a phylogenetically conserved module of unknown function, known as the ENTH domain (epsin NH2-terminal homology domain). We have now solved the crystal structure of rat epsin 1 ENTH domain to 1.8 Å resolution. This domain is structurally similar to armadillo and Heat repeats of β-catenin and karyopherin-β, respectively. We have also identified and characterized the interaction of epsin 1, via the ENTH domain, with the transcription factor promyelocytic leukemia Zn2+ finger protein (PLZF). Leptomycin B, an antifungal antibiotic, which inhibits the Crm1- dependent nuclear export pathway, induces an accumulation of epsin 1 in the nucleus. These findings suggest that epsin 1 may function in a signaling pathway connecting the endocytic machinery to the regulation of nuclear function.

Research Organization:
Yale Univ., New Haven, CT (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER). Biological Systems Science Division; National Institutes of Health (NIH)
Grant/Contract Number:
CA46128; NS36252
OSTI ID:
1625117
Journal Information:
Journal of Cell Biology, Vol. 149, Issue 3; ISSN 0021-9525
Publisher:
Rockefeller University PressCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (37)

Phosphoinositide Recognition Domains: Phosphoinositide Recognition Domains journal April 2003
Intersectin goes nuclear: secret life of an endocytic protein journal April 2018
A role for Kaiso–p120ctn complexes in cancer? journal November 2005
EHD2 shuttles to the nucleus and represses transcription journal May 2012
Unusual Structural Organization of the Endocytic Proteins AP180 and Epsin 1 journal March 2002
Excess vacuolar SNAREs drive lysis and Rab bypass fusion journal August 2007
Annexin B12 Is a Sensor of Membrane Curvature and Undergoes Major Curvature-dependent Structural Changes journal March 2007
Concise Review: Balancing Stem Cell Self-Renewal and Differentiation with PLZF: PLZF Regulates Self-Renewal and Differentiation of Stem Cells journal January 2016
Endocytosis and Signaling: Cell Logistics Shape the Eukaryotic Cell Plan journal January 2012
Automated Structure Solution with the PHENIX Suite book January 2008
A novel angiotensin II type 2 receptor signaling pathway: possible role in cardiac hypertrophy journal December 2003
Regulated portals of entry into the cell journal March 2003
Evolutionary analysis of the ENTH/ANTH/VHS protein superfamily reveals a coevolution between membrane trafficking and metabolism journal January 2012
Rapid chain tracing of polypeptide backbones in electron-density maps journal February 2010
Curvature of clathrin-coated pits driven by epsin journal September 2002
Rapid model building of α-helices in electron-density maps journal February 2010
VHS domain - a longshoreman of vesicle lines journal December 2001
Vesicular protein transport journal April 2001
Differential Nucleocytoplasmic Shuttling of β-Arrestins: CHARACTERIZATION OF A LEUCINE-RICH NUCLEAR EXPORT SIGNAL IN β-ARRESTIN2 journal August 2002
Comprehensive nuclear proteome of Arabidopsis obtained by sequential extraction journal January 2019
Characterization of Mammalian Ecm29, a 26 S Proteasome-associated Protein That Localizes to the Nucleus and Membrane Vesicles journal December 2004
Degradation of Endocytosed Epidermal Growth Factor and Virally Ubiquitinated Major Histocompatibility Complex Class I Is Independent of Mammalian ESCRTII journal February 2006
Endocytosis and signaling cascades: a close encounter journal June 2001
Huntingtin Associates with Acidic Phospholipids at the Plasma Membrane journal October 2005
Influence of membrane curvature on the structure of the membrane-associated pleckstrin homology domain of phospholipase C-δ1 journal December 2009
Endocytosis: Signaling from Endocytic Membranes to the Nucleus journal April 2004
A Novel All Helix Fold of the AP180 Amino-Terminal Domain for Phosphoinositide Binding and Clathrin Assembly in Synaptic Vesicle Endocytosis journal February 2001
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PIP5KIβ Selectively Modulates Apical Endocytosis in Polarized Renal Epithelial Cells journal January 2013

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