Download MendeleyVisualization of Ligand-Bound Ectodomain Assembly in the Full-Length Human IGF-1 Receptor by Cryo-EM Single-Particle Analysis.
Zhang, X., Yu, D., Sun, J., Wu, Y., Gong, J., Li, X., Liu, L., Liu, S., Liu, J., Wu, Y., Li, D., Ma, Y., Han, X., Zhu, Y., Wu, Z., Wang, Y., Ouyang, Q., Wang, T.(2020) Structure 28: 555-561.e4
- PubMed: 32275863
- DOI: https://doi.org/10.1016/j.str.2020.03.007
- Primary Citation of Related Structures:
6JK8 - PubMed Abstract:
Tyrosine kinase receptor of insulin-like growth factor 1 receptor (IGF-1R) and insulin receptor (IR) bind to hormones, such as insulin, IGF-1, and IGF-2, and transduces the signals across the cell membrane. However, the complete structure of the receptor and the signal transduction mechanism remains unclear. Here, we report the cryo-EM structure of the ligand-bound ectodomain in the full-length human IGF-1R. We reconstructed the IGF-1R/insulin complex at 4.7 Å and the IGF-1R/IGF-1 complex at 7.7 Å. Our structures reveal that only one insulin or one IGF-1 molecule binds to and activates the full-length human IGF-1R receptor.
Organizational Affiliation:
School of Life Science and Technology, Harbin Institute of Technology, Harbin 150001, China; Department of Biology, Southern University of Science and Technology, Shenzhen 518055, China.
