Protein Localization with Flexible DNA or RNA
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Protein Localization with Flexible DNA or RNA. / Bernhardsson, Per Johan Sebastian; Mitarai, Namiko; Sneppen, Kim.
I: PLoS.ONE., Bind 7, Nr. 2, 10.02.2012, s. e29218.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Protein Localization with Flexible DNA or RNA
AU - Bernhardsson, Per Johan Sebastian
AU - Mitarai, Namiko
AU - Sneppen, Kim
PY - 2012/2/10
Y1 - 2012/2/10
N2 - Localization of activity is ubiquitous in life, and also within sub-cellular compartments. Localization provides potential advantages as different proteins involved in the same cellular process may supplement each other on a fast timescale. It might also prevent proteins from being active in other regions of the cell. However localization is at odds with the spreading of unbound molecules by diffusion. We model the cost and gain for specific enzyme activity using localization strategies based on binding to sites of intermediate specificity. While such bindings in themselves decrease the activity of the protein on its target site, they may increase protein activity if stochastic motion allows the acting protein to touch both the intermediate binding site and the specific site simultaneously. We discuss this strategy in view of recent suggestions on long non-coding RNA as a facilitator of localized activity of chromatin modifiers.
AB - Localization of activity is ubiquitous in life, and also within sub-cellular compartments. Localization provides potential advantages as different proteins involved in the same cellular process may supplement each other on a fast timescale. It might also prevent proteins from being active in other regions of the cell. However localization is at odds with the spreading of unbound molecules by diffusion. We model the cost and gain for specific enzyme activity using localization strategies based on binding to sites of intermediate specificity. While such bindings in themselves decrease the activity of the protein on its target site, they may increase protein activity if stochastic motion allows the acting protein to touch both the intermediate binding site and the specific site simultaneously. We discuss this strategy in view of recent suggestions on long non-coding RNA as a facilitator of localized activity of chromatin modifiers.
U2 - 10.1371/journal.pone.0029218
DO - 10.1371/journal.pone.0029218
M3 - Journal article
C2 - 22347995
VL - 7
SP - e29218
JO - PLoS ONE
JF - PLoS ONE
SN - 1932-6203
IS - 2
ER -
ID: 37540440