Article
The N-terminal domain of Janus kinase 2 is required for Golgi processing and cell surface expression of erythropoietin receptor.
Molecular cell - 1 Dec 2001
Huang L J, Constantinescu S N, Lodish H F
Abstract excerpt
We show that Janus kinase 2 (JAK2), and more specifically just its intact N-terminal domain, binds to the erythropoietin receptor (EpoR) in the endoplasmic reticulum and promotes its cell surface expression. This interaction is specific as JAK1 has no effect. Residues 32 to 58 of the JAK2 JH7 domain are required for EpoR surface expression. Alanine scanning mutagenesis of the EpoR membrane proximal region reveals...
Topics
- Amino Acid Sequence
- Animals
- Binding Sites
- Cell Line
- Cell Membrane
- Endoplasmic Reticulum
- Enzyme Activation
- Fibroblasts
- Gene Deletion
- Golgi Apparatus
- Janus Kinase 1
