Engineering of a genetically encodable fluorescent voltage sensor exploiting fast Ci-VSP voltage-sensing movements
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Engineering of a genetically encodable fluorescent voltage sensor exploiting fast Ci-VSP voltage-sensing movements. / Lundby, Alicia; Mutoh, Hiroki; Dimitrov, Dimitar; Akemann, Walther; Knöpfel, Thomas.
In: PLoS ONE, Vol. 3, No. 6, 2008, p. e2514.Research output: Contribution to journal › Journal article › peer-review
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TY - JOUR
T1 - Engineering of a genetically encodable fluorescent voltage sensor exploiting fast Ci-VSP voltage-sensing movements
AU - Lundby, Alicia
AU - Mutoh, Hiroki
AU - Dimitrov, Dimitar
AU - Akemann, Walther
AU - Knöpfel, Thomas
N1 - Keywords: Animals; Fluorescence; Genetic Engineering; Ion Channel Gating; PC12 Cells; Potassium Channels; Protein Conformation; Rats
PY - 2008
Y1 - 2008
N2 - Ci-VSP contains a voltage-sensing domain (VSD) homologous to that of voltage-gated potassium channels. Using charge displacement ('gating' current) measurements we show that voltage-sensing movements of this VSD can occur within 1 ms in mammalian membranes. Our analysis lead to development of a genetically encodable fluorescent protein voltage sensor (VSFP) in which the fast, voltage-dependent conformational changes of the Ci-VSP voltage sensor are transduced to similarly fast fluorescence read-outs.
AB - Ci-VSP contains a voltage-sensing domain (VSD) homologous to that of voltage-gated potassium channels. Using charge displacement ('gating' current) measurements we show that voltage-sensing movements of this VSD can occur within 1 ms in mammalian membranes. Our analysis lead to development of a genetically encodable fluorescent protein voltage sensor (VSFP) in which the fast, voltage-dependent conformational changes of the Ci-VSP voltage sensor are transduced to similarly fast fluorescence read-outs.
U2 - 10.1371/journal.pone.0002514
DO - 10.1371/journal.pone.0002514
M3 - Journal article
C2 - 18575613
VL - 3
SP - e2514
JO - PLoS ONE
JF - PLoS ONE
SN - 1932-6203
IS - 6
ER -
ID: 20969902