Structure of the complex of phosphorylated liver kinase B1 and 14-3-3 zetaLu, Y., Ding, S., Zhou, R., Wu, J.
(2017) Acta Crystallogr F Struct Biol Commun 73: 196-201
- PubMed: 28368277
- DOI: https://doi.org/10.1107/S2053230X17003521
- Primary Citation of Related Structures:
- PubMed Abstract:
The serine/threonine protein kinase liver kinase B1 (LKB1) is a tumour suppressor and plays important roles in development and metabolism. It phosphorylates AMPK and AMPK-related kinases to regulate multiple physiological processes. Mutations in LKB1 often occur in multiple cancers. LKB1 can be suppressed by 14-3-3 proteins in a phosphorylation-dependent manner. Previously, the structure of a 14-3-3ζ-LKB1 fusion protein has been reported, revealing a phosphorylation-independent binding mode of LKB1 to 14-3-3 proteins. Here, the crystal structure of phosphorylated LKB1 peptide in complex with 14-3-3ζ was solved, which provides a structural basis for the phosphorylation-dependent recognition of LKB1 by 14-3-3 proteins.
Department of Stomatology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, People's Republic of China.