Monthly Archives: May 2011

MAPK: Feedback Amplifier, Part 2

In part 1 of this series, a brief history of negative feedback was given. Here we will look at the advantages and disadvantages of negative feedback, particularly in relation to signal transmission. Amplifiers Amplifiers used by electrical engineers are designed to magnify the … Continue reading

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MAPK: Feedback Amplifier, Part I

A recent paper by Sturm et al., report results that support the hypothesis that the MAPK cascade acts as a negative feedback amplifier. The systems biology literature is full of reviews and articles about oscillators and bistable systems and very little else other than … Continue reading

Posted in General Science Interest, Molecular Biology, Pathways, Systems Theory | 2 Comments

Drawing Pathways with TikZ: Part 2