Ouyang2014 - photomorphogenic UV-B signalling network

Ouyang2014 - photomorphogenic UV-B signalling
network

This model is described in the article:

Coordinated photomorphogenic
UV-B signaling network captured by mathematical modeling.

Ouyang X, Huang X, Jin X, Chen Z,
Yang P, Ge H, Li S, Deng XW.
Proc. Natl. Acad. Sci. U.S.A. 2014 Aug;
111(31): 11539-11544
Abstract:

Long-wavelength and low-fluence UV-B light is an
informational signal known to induce photomorphogenic
development in plants. Using the model plant Arabidopsis
thaliana, a variety of factors involved in UV-B-specific
signaling have been experimentally characterized over the past
decade, including the UV-B light receptor UV resistance locus
8; the positive regulators constitutive photomorphogenesis 1
and elongated hypocotyl 5; and the negative regulators cullin4,
repressor of UV-B photomorphogenesis 1 (RUP1), and RUP2.
Individual genetic and molecular studies have revealed that
these proteins function in either positive or negative
regulatory capacities for the sufficient and balanced
transduction of photomorphogenic UV-B signal. Less is known,
however, regarding how these signaling events are
systematically linked. In our study, we use a systems biology
approach to investigate the dynamic behaviors and correlations
of multiple signaling components involved in Arabidopsis
UV-B-induced photomorphogenesis. We define a mathematical
representation of photomorphogenic UV-B signaling at a temporal
scale. Supplemented with experimental validation, our
computational modeling demonstrates the functional interaction
that occurs among different protein complexes in early and
prolonged response to photomorphogenic UV-B.

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