| First Author | Uetz P | Year | 1996 |
| Journal | J Biol Chem | Volume | 271 |
| Issue | 52 | Pages | 33525-30 |
| PubMed ID | 8969217 | Mgi Jnum | J:37312 |
| Mgi Id | MGI:84714 | Doi | 10.1074/jbc.271.52.33525 |
| Citation | Uetz P, et al. (1996) Molecular interaction between limb deformity proteins (formins) and Src family kinases. J Biol Chem 271(52):33525-30 |
| abstractText | Ld proteins (formins) are encoded by the limb deformity (ld) gene and define a family of related gene products regulating establishment of embryonic polarity. In this study we establish that chicken and murine Ld proteins interact directly with Src family kinases (c-Src and c-Fyn). Specific binding is mediated by the proline-rich domain present in Ld proteins and the ligand binding surface of the Src SH3 domain. Co-immunoprecipitation of Ld and c-Src proteins from transfected cells shows that these proteins associate in vivo. Immunolocalization and biochemical fractionation of fibroblasts confirms the predominant nuclear localization of Ld proteins, but unexpectedly identifies a population of Ld proteins associated to cellular membranes. This population of Ld proteins co-localizes with membrane-associated c-Src proteins at both plasma and perinuclear membranes. These studies indicate that the morphoregulatory Ld proteins interact with signal transduction cascades by association to membrane-bound Src family kinases. |
