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Updated: Mar 22, 2026
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Optimized Analysis of Proteins from Xenopus Oocytes and Embryos by Immunoblotting
Published on: September 19, 2025
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CIB1: a small protein with big ambitions
Tina M Leisner1, Thomas C Freeman1, Justin L Black1
1Department of Biochemistry and Biophysics, University of North Carolina, Chapel Hill, North Carolina, USA;
Summary
Calcium- and integrin-binding protein 1 (CIB1) is a versatile protein involved in cell signaling, migration, and survival. It plays a crucial role in various diseases, including cancer and cardiovascular conditions.
Area of Science:
- Molecular Biology
- Cell Biology
- Biochemistry
Background:
- Calcium- and integrin-binding protein 1 (CIB1) is ubiquitously expressed.
- Initially identified as an integrin-binding partner in platelets.
- Emerging roles in diverse cellular processes and diseases.
Purpose of the Study:
- To review the current understanding of CIB1 structure and function.
- To explore CIB1's involvement in various signaling pathways.
- To highlight CIB1's impact on human health and disease.
Main Methods:
- Literature review of CIB1 research.
- Analysis of identified CIB1 binding partners.
- Examination of structural and mutational studies.
Main Results:
- CIB1 regulates calcium signaling, migration, adhesion, proliferation, and survival.
- CIB1 interacts with kinases like PAK1, ASK1, and PLK3.
- CIB1 modulates PI3K/AKT and MEK/ERK pathways, impacting oncogenesis.
Conclusions:
- CIB1 is a key regulator of critical cellular processes.
- CIB1's interactions are mediated through a hydrophobic cleft.
- CIB1's diverse roles underscore its significance in health and disease.
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