期刊
BIOPHYSICAL JOURNAL
卷 96, 期 4, 页码 1275-1292出版社
CELL PRESS
DOI: 10.1016/j.bpj.2008.10.052
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资金
- NIH HHS [DP1 OD000217, DP1 OD000217-05] Funding Source: Medline
We use statistical mechanics and simple ideas from polymer physics to develop a quantitative model of proteins whose activity is controlled by flexibly tethered ligands and receptors. We predict how the properties of tethers influence the function of these proteins and demonstrate how their tether length dependence can be exploited to construct proteins whose integration of multiple signals can be tuned. One case study to which we apply these ideas is that of the Wiskott-Aldrich Syndrome Proteins as activators of actin polymerization. More generally, tethered ligands competing with those free in solution are common phenomena in biology, making this an important specific example of a widespread biological idea.
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