| First Author | Chiu CF | Year | 2008 |
| Journal | EMBO J | Volume | 27 |
| Issue | 7 | Pages | 934-47 |
| PubMed ID | 18323775 | Mgi Jnum | J:200403 |
| Mgi Id | MGI:5508597 | Doi | 10.1038/emboj.2008.40 |
| Citation | Chiu CF, et al. (2008) ZFPL1, a novel ring finger protein required for cis-Golgi integrity and efficient ER-to-Golgi transport. EMBO J 27(7):934-47 |
| abstractText | The Golgi apparatus occupies a central position within the secretory pathway, but the molecular mechanisms responsible for its assembly and organization remain poorly understood. We report here the identification of zinc finger protein-like 1 (ZFPL1) as a novel structural component of the Golgi apparatus. ZFPL1 is a conserved and widely expressed integral membrane protein with two predicted zinc fingers at the N-terminus, the second of which is a likely ring domain. ZFPL1 directly interacts with the cis-Golgi matrix protein GM130. Depletion of ZFPL1 results in the accumulation of cis-Golgi matrix proteins in the intermediate compartment (IC) and the tubulation of cis-Golgi and IC membranes. Loss of ZFPL1 function also impairs cis-Golgi assembly following brefeldin A washout and slows the rate of cargo trafficking into the Golgi apparatus. Effects upon Golgi matrix protein localization and cis-Golgi structure can be rescued by wild-type ZFPL1 but not mutants defective in GM130 binding. Together, these data suggest that ZFPL1 has an important function in maintaining the integrity of the cis-Golgi and that it does so through interactions with GM130. |
