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Article Abstract
Pan1 is a multi-domain scaffold that enables dynamic interactions with both structural and regulatory components of the endocytic pathway. Pan1 is composed of Eps15 Homology (EH) domains which interact with adaptor proteins, a central region that is responsible for its oligomerization and C-terminal binding sites for Arp2/3, F-actin, and type-I myosin motors. In this study, we have characterized the binding sites between Pan1 and its constitutive binding partner End3, another EH domain containing endocytic protein. The C-terminal End3 Repeats of End3 associate with the N-terminal part of Pan1's central coiled-coil region. These repeats appear to act independently of one another as tandem, redundant binding sites for Pan1. The end3-1 allele was sequenced, and corresponds to a C-terminal truncation lacking the End3 Repeats. Mutations of the End3 Repeats highlight that those residues which are identical between these repeats serve as contact sites for the interaction with Pan1.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3855908 | PMC |
| http://dx.doi.org/10.1111/tra.12125 | DOI Listing |
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