Editorial GuideEVOLUTION

(R)evolution of Complex Regulatory Systems

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Sci. Signal.  22 Jun 2010:
Vol. 3, Issue 127, pp. eg4
DOI: 10.1126/scisignal.3127eg4

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Signaling systems are exciting to study precisely because they are some of the most complex and dynamical systems that we know. The cell needs operational freedom and, thus, many motif-domain interactions might not be “hard-wired” through evolution, but instead may be like the Linux operating system, where symbolic links can point to files without duplication.

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