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Crystal structure of human Intersectin-2L C2 domain
Wei Zhang1, Yang Shen, Guomei Xiong
1Hubei Key Laboratory of Genetic Regulation and Integrative Biology, College of Life Science, Huazhong Normal University, Wuhan 430079, PR China.
Biochemical and Biophysical Research Communications
|January 1, 2013
Summary
Intersectin-2L (ITSN-2L) C2 domain
Area of Science:
- Molecular biology
- Structural biology
- Cellular signaling
Background:
- Intersectin-2L (ITSN-2L) is a scaffolding protein involved in membrane trafficking and signal transduction.
- ITSN-2L has a C2 domain, but its function in guanine nucleotide exchange factor (GEF) activity is unclear.
Purpose of the Study:
- To determine the crystal structure of the human ITSN-2L C2 domain.
- To elucidate the role of the ITSN-2L C2 domain in cellular processes.
Main Methods:
- X-ray crystallography at 1.56Å resolution.
- Sequence and structural alignment with other C2 domain proteins.
Main Results:
- The crystal structure of the human ITSN-2L C2 domain was determined.
- Structural analysis suggests roles in membrane trafficking, lipid signaling, and GTPase activation.
- The ITSN-2L C2 domain may regulate Cdc42 activity.
Conclusions:
- The ITSN-2L C2 domain structure provides insights into its cellular functions.
- The C2 domain is implicated in regulating GTPase activity, specifically Cdc42.
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