Identification of a novel Eps 15 homology domain-containing protein 1 (EHD1) and EHD4-binding motif in phostensin.

Phostensin (PTS) encoded by KIAA1949 binds to protein phosphatase 1, F-actin, Eps 15 homology domain-containing protein 1 (EHD1) and EHD4. Most EHD-binding proteins contain a consensus motif, Asn-Pro-Phe (NPF), which interacts with the C-terminal EH domain of EHD proteins. Nevertheless, the NPF motif is absent in PTS.