Phosphorylation of Kindlins and the Control of Integrin Function
Integrins serve as conduits for the transmission of information between cells and their extracellular environment. Signaling across integrins is bidirectional, transducing both inside-out and outside-signaling. Integrin activation, a transition from a low affinity/avidity state to a high affinity/av...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-04-01
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| Series: | Cells |
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| Online Access: | https://www.mdpi.com/2073-4409/10/4/825 |
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| author | Katarzyna Bialkowska Jun Qin Edward F. Plow |
| author_facet | Katarzyna Bialkowska Jun Qin Edward F. Plow |
| author_sort | Katarzyna Bialkowska |
| collection | DOAJ |
| description | Integrins serve as conduits for the transmission of information between cells and their extracellular environment. Signaling across integrins is bidirectional, transducing both inside-out and outside-signaling. Integrin activation, a transition from a low affinity/avidity state to a high affinity/avidity state for cognate ligands, is an outcome of inside-signaling. Such activation is particularly important for the recognition of soluble ligands by blood cells but also influences cell-cell and cell-matrix interactions. Integrin activation depends on a complex series of interactions, which both accelerate and inhibit their interconversion from the low to the high affinity/avidity state. There are three components regarded as being most proximately involved in integrin activation: the integrin cytoplasmic tails, talins and kindlins. The participation of each of these molecules in integrin activation is highly regulated by post-translation modifications. The importance of targeted phosphorylation of integrin cytoplasmic tails and talins in integrin activation is well-established, but much less is known about the role of post-translational modification of kindlins. The kindlins, a three-member family of 4.1-ezrin-radixin-moesin (FERM)-domain proteins in mammals, bind directly to the cytoplasmic tails of integrin beta subunits. This commentary provides a synopsis of the emerging evidence for the role of kindlin phosphorylation in integrin regulation. |
| first_indexed | 2024-03-10T12:34:21Z |
| format | Article |
| id | doaj.art-f3a7de5c304d4bdb8ad1ddc450fdab49 |
| institution | Directory Open Access Journal |
| issn | 2073-4409 |
| language | English |
| last_indexed | 2024-03-10T12:34:21Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Cells |
| spelling | doaj.art-f3a7de5c304d4bdb8ad1ddc450fdab492023-11-21T14:27:38ZengMDPI AGCells2073-44092021-04-0110482510.3390/cells10040825Phosphorylation of Kindlins and the Control of Integrin FunctionKatarzyna Bialkowska0Jun Qin1Edward F. Plow2Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USADepartment of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USADepartment of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USAIntegrins serve as conduits for the transmission of information between cells and their extracellular environment. Signaling across integrins is bidirectional, transducing both inside-out and outside-signaling. Integrin activation, a transition from a low affinity/avidity state to a high affinity/avidity state for cognate ligands, is an outcome of inside-signaling. Such activation is particularly important for the recognition of soluble ligands by blood cells but also influences cell-cell and cell-matrix interactions. Integrin activation depends on a complex series of interactions, which both accelerate and inhibit their interconversion from the low to the high affinity/avidity state. There are three components regarded as being most proximately involved in integrin activation: the integrin cytoplasmic tails, talins and kindlins. The participation of each of these molecules in integrin activation is highly regulated by post-translation modifications. The importance of targeted phosphorylation of integrin cytoplasmic tails and talins in integrin activation is well-established, but much less is known about the role of post-translational modification of kindlins. The kindlins, a three-member family of 4.1-ezrin-radixin-moesin (FERM)-domain proteins in mammals, bind directly to the cytoplasmic tails of integrin beta subunits. This commentary provides a synopsis of the emerging evidence for the role of kindlin phosphorylation in integrin regulation.https://www.mdpi.com/2073-4409/10/4/825kindlinsphosphorylationpost-translational modifications |
| spellingShingle | Katarzyna Bialkowska Jun Qin Edward F. Plow Phosphorylation of Kindlins and the Control of Integrin Function Cells kindlins phosphorylation post-translational modifications |
| title | Phosphorylation of Kindlins and the Control of Integrin Function |
| title_full | Phosphorylation of Kindlins and the Control of Integrin Function |
| title_fullStr | Phosphorylation of Kindlins and the Control of Integrin Function |
| title_full_unstemmed | Phosphorylation of Kindlins and the Control of Integrin Function |
| title_short | Phosphorylation of Kindlins and the Control of Integrin Function |
| title_sort | phosphorylation of kindlins and the control of integrin function |
| topic | kindlins phosphorylation post-translational modifications |
| url | https://www.mdpi.com/2073-4409/10/4/825 |
| work_keys_str_mv | AT katarzynabialkowska phosphorylationofkindlinsandthecontrolofintegrinfunction AT junqin phosphorylationofkindlinsandthecontrolofintegrinfunction AT edwardfplow phosphorylationofkindlinsandthecontrolofintegrinfunction |