First Author | Lim CS | Year | 2017 |
Journal | Genes Dev | Volume | 31 |
Issue | 6 | Pages | 537-552 |
PubMed ID | 28404629 | Mgi Jnum | J:242910 |
Mgi Id | MGI:5907069 | Doi | 10.1101/gad.294413.116 |
Citation | Lim CS, et al. (2017) BRaf signaling principles unveiled by large-scale human mutation analysis with a rapid lentivirus-based gene replacement method. Genes Dev 31(6):537-552 |
abstractText | Rapid advances in genetics are linking mutations on genes to diseases at an exponential rate, yet characterizing the gene mutation-cell behavior relationships essential for precision medicine remains a daunting task. More than 350 mutations on small GTPase BRaf are associated with various tumors, and approximately 40 mutations are associated with the neurodevelopmental disorder cardio-facio-cutaneous syndrome (CFC). We developed a fast cost-effective lentivirus-based rapid gene replacement method to interrogate the physiopathology of BRaf and approximately 50 disease-linked BRaf mutants, including all CFC-linked mutants. Analysis of simultaneous multiple patch-clamp recordings from 6068 pairs of rat neurons with validation in additional mouse and human neurons and multiple learning tests from 1486 rats identified BRaf as the key missing signaling effector in the common synaptic NMDA-R-CaMKII-SynGap-Ras-BRaf-MEK-ERK transduction cascade. Moreover, the analysis creates the original big data unveiling three general features of BRaf signaling. This study establishes the first efficient procedure that permits large-scale functional analysis of human disease-linked mutations essential for precision medicine. |