Download MendeleyCryo-EM Structures of CRAF 2 /14-3-3 2 and CRAF 2 /14-3-3 2 /MEK1 2 Complexes.
Dedden, D., Nitsche, J., Schneider, E.V., Thomsen, M., Schwarz, D., Leuthner, B., Gradler, U.(2024) J Mol Biol 436: 168483-168483
- PubMed: 38331211
- DOI: https://doi.org/10.1016/j.jmb.2024.168483
- Primary Citation of Related Structures:
8CHF, 8CPD - PubMed Abstract:
RAF protein kinases are essential effectors in the MAPK pathway and are important cancer drug targets. Structural understanding of RAF activation is so far based on cryo-electron microscopy (cryo-EM) and X-ray structures of BRAF in different conformational states as inactive or active complexes with KRAS, 14-3-3 and MEK1. In this study, we have solved the first cryo-EM structures of CRAF 2 /14-3-3 2 at 3.4 Å resolution and CRAF 2 /14-3-3 2 /MEK1 2 at 4.2 Å resolution using CRAF kinase domain expressed as constitutively active Y340D/Y341D mutant in insect cells. The overall architecture of our CRAF 2 /14-3-3 2 and CRAF 2 /14-3-3 2 /MEK1 2 cryo-EM structures is highly similar to corresponding BRAF structures in complex with 14-3-3 or 14-3-3/MEK1 and represent the activated dimeric RAF conformation. Our CRAF cryo-EM structures provide additional insights into structural understanding of the activated CRAF 2 /14-3-3 2 /MEK1 2 complex.
Organizational Affiliation:
Proteros biostructures GmbH, Bunsenstraße 7a, D-82152 Planegg-Martinsried, Germany.
