The AMIGO1 adhesion protein activates Kv2.1 voltage sensors.
Sign Up to like & getrecommendations! Published in 2022 at "Biophysical journal"
DOI: 10.1016/j.bpj.2022.03.020
Abstract: Kv2 voltage-gated potassium channels are modulated by AMIGO neuronal adhesion proteins. Here, we identify steps in the conductance activation pathway of Kv2.1 channels that are modulated by AMIGO1 using voltage clamp recordings and spectroscopy of… read more here.
Keywords: voltage sensors; voltage sensor; voltage relationship; voltage ... See more keywords
Nanoscale optical voltage sensing in biological systems
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Luminescence"
DOI: 10.1016/j.jlumin.2020.117719
Abstract: Abstract Local electric fields modulate a variety of cellular processes and are particularly relevant in the nervous system. Signal propagation along an axon occurs through small (around 100 mV) rapid changes in the potential across… read more here.
Keywords: voltage; voltage sensors; voltage sensing; optical voltage ... See more keywords
Independent movement of the voltage sensors in KV2.1/KV6.4 heterotetramers
Sign Up to like & getrecommendations! Published in 2017 at "Scientific Reports"
DOI: 10.1038/srep41646
Abstract: Heterotetramer voltage-gated K+ (KV) channels KV2.1/KV6.4 display a gating charge-voltage (QV) distribution composed by two separate components. We use state dependent chemical accessibility to cysteines substituted in either KV2.1 or KV6.4 to assess the voltage… read more here.
Keywords: kv2 kv6; voltage; gating charge; voltage sensors ... See more keywords
Equalization of Intensity-Modulated Fiber-Optic Voltage Sensors for Power Distribution Systems
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Photonics Technology Letters"
DOI: 10.1109/lpt.2021.3052649
Abstract: We test fiber-optic voltage sensors based on optical reflection from a piezoelectric transducer. Our specific devices possess a 2 kHz fundamental resonance, and we verify a readily usable frequency band from approximately 10 Hz to… read more here.
Keywords: optic voltage; intensity modulated; voltage sensors; modulated fiber ... See more keywords