Calcium and integrin-binding protein 1 is a protein that in humans is encoded by the CIB1 gene and is located in chromosome 15. The protein encoded by this gene is a member of the calcium-binding protein family. The specific function of this protein has not yet been determined; however this protein is known to interact with DNA-dependent protein kinase and may play a role in kinase-phosphatase regulation of DNA end-joining. This protein also interacts with integrin alpha(IIb)beta(3), which may implicate this protein as a regulatory molecule for alpha(IIb)beta(3).
Calcium and integrin-binding protein 1 is a protein that in humans is encoded by the CIB1 gene and is located in chromosome 15. The protein encoded by this gene is a member of the calcium-binding protein family. The specific function of this protein has not yet been determined; however this protein is known to interact with DNA-dependent protein kinase and may play a role in kinase-phosphatase regulation of DNA end-joining. This protein also interacts with integrin alpha(IIb)beta(3), which may implicate this protein as a regulatory molecule for alpha(IIb)beta(3).
== Structure and function == CIB1 is a small protein with a molecular weight of approximately 22 kDa. It has a conserved calcium-binding EF hand domain, which consists of two alpha-helices connected by a loop. CIB1 also has an integrin-binding domain, located near the N-terminus of the protein. In addition, CIB1 has a coiled-coil domain and a C-terminal domain. CIB1 is involved in regulating cell adhesion, migration, and differentiation, as well as other cellular processes. It interacts with integrins, which are transmembrane receptors that play a key role in cell signaling and adhesion to the extracellular matrix. CIB1 has also been shown to regulate other signaling pathways that are important for cell survival and proliferation. Upregulation of CIB1 expression has been observed in several types of cancer, and it has been implicated in cancer development and progression. CIB1 is involved in several cellular processes that are important for cancer progression, including cell adhesion, migration, and invasion. It has been shown to interact with integrins, which are transmembrane receptors that play a key role in these processes. The structure and function of CIB1 make it an important protein in regulating various cellular processes, including those involved in cancer progression, and targeting it may offer potential therapeutic benefits.
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