| First Author | Marin TL | Year | 2015 |
| Journal | BMC Syst Biol | Volume | 9 |
| Pages | 13 | PubMed ID | 25890336 |
| Mgi Jnum | J:344928 | Mgi Id | MGI:6709419 |
| Doi | 10.1186/s12918-015-0156-0 | Citation | Marin TL, et al. (2015) Identification of AMP-activated protein kinase targets by a consensus sequence search of the proteome. BMC Syst Biol 9:13 |
| abstractText | BACKGROUND: AMP-activated protein kinase (AMPK) is a heterotrimeric serine/threonine protein kinase that is activated by cellular perturbations associated with ATP depletion or stress. While AMPK modulates the activity of a variety of targets containing a specific phosphorylation consensus sequence, the number of AMPK targets and their influence over cellular processes is currently thought to be limited. RESULTS: We queried the human and the mouse proteomes for proteins containing AMPK phosphorylation consensus sequences. Integration of this database into Gaggle software facilitated the construction of probable AMPK-regulated networks based on known and predicted molecular associations. In vitro kinase assays were conducted for preliminary validation of 12 novel AMPK targets across a variety of cellular functional categories, including transcription, translation, cell migration, protein transport, and energy homeostasis. Following initial validation, pathways that include NAD synthetase 1 (NADSYN1) and protein kinase B (AKT2) were hypothesized and experimentally tested to provide a mechanistic basis for AMPK regulation of cell migration and maintenance of cellular NAD(+) concentrations during catabolic processes. CONCLUSIONS: This study delineates an approach that encompasses both in silico procedures and in vitro experiments to produce testable hypotheses for AMPK regulation of cellular processes. |
