Initial steps in the opening of a Shaker potassium channel

Proceedings of the National Academy of Sciences of the United States of America

Volumn 109, Issue 31, 2012, Pages 12800-12804

  Hoshi, Toshinori ^a   Armstrong, Clay M ^a  

^a UNIVERSITY OF PENNSYLVANIA   (United States)

Author keywords

Calcium; Electrophysiology; Surface charge; Voltage sensor

Indexed keywords

ARGININE; LANTHANUM; SHAKER POTASSIUM CHANNEL;

ARTICLE; CHANNEL GATING; DEPOLARIZATION; EXTRACELLULAR FLUID; POTASSIUM CURRENT; PRIORITY JOURNAL; REPOLARIZATION;

ANIMALS; CELL LINE, TUMOR; HEK293 CELLS; HUMANS; ION CHANNEL GATING; LANTHANUM; MEMBRANE POTENTIALS; MICE; MUTATION; PROTEIN STRUCTURE, QUATERNARY; PROTEIN STRUCTURE, TERTIARY; SHAKER SUPERFAMILY OF POTASSIUM CHANNELS;

EID: 84864507345     PISSN: 00278424     EISSN: 10916490     Source Type: Journal    
DOI: 10.1073/pnas.1209665109     Document Type: Article

References (32)

1. Kole MH, Stuart GJ (2012) Signal processing in the axon initial segment. Neuron 73: 235-247.
2. Hodgkin AL, Huxley AF (1952) A quantitative description of membrane current and its application to conduction and excitation in nerve. J Physiol 117:500-544.
3. Alle H, Roth A, Geiger JR (2009) Energy-efficient action potentials in hippocampal mossy fibers. Science 325:1405-1408.
4. Hille B (2001) Ion Channels of Excitable Membranes (Sinauer, Sunderland, MA), 3rd Ed.
5. Schwarz TL, Tempel BL, Papazian DM, Jan YN, Jan LY (1988) Multiple potassium-channel components are produced by alternative splicing at the Shaker locus in Drosophila. Nature 331:137-142. (Pubitemid 18042145)
6. Jensen MØ, et al. (2012) Mechanism of voltage gating in potassium channels. Science 336:229-233.
7. + channel. Neuron 19:175-184.
8. + conduction and selectivity. Science 280:69-77.
9. + channel. Neuron 32:649-656.
10. Payandeh J, Scheuer T, Zheng N, Catterall WA (2011) The crystal structure of a voltage-gated sodium channel. Nature 475:353-358.
11. + channel in a lipid membrane-like environment. Nature 450:376-382.
12. Schow EV, Freites JA, Gogna K, White SH, Tobias DJ (2010) Down-state model of the voltage-sensing domain of a potassium channel. Biophys J 98:2857-2866.
13. Vargas E, Bezanilla F, Roux B (2011) In search of a consensus model of the resting state of a voltage-sensing domain. Neuron 72:713-720.
14. Tao X, Lee A, Limapichat W, Dougherty DA, MacKinnon R (2010) A gating charge transfer center in voltage sensors. Science 328:67-73.
15. Schoppa NE, Sigworth FJ (1998) Activation of shaker potassium channels. I. Characterization of voltage-dependent transitions. J Gen Physiol 111:271-294. (Pubitemid 28113078)
16. Zagotta WN, Hoshi T, Dittman J, Aldrich RW (1994) Shaker potassium channel gating. II: Transitions in the activation pathway. J Gen Physiol 103:279-319. (Pubitemid 24068561)
17. Aggarwal SK, MacKinnon R (1996) Contribution of the S4 segment to gating charge in the Shaker K+ channel. Neuron 16:1169-1177. (Pubitemid 26227238)
18. Islas LD, Sigworth FJ (1999) Voltage sensitivity and gating charge in Shaker and Shab family potassium channels. J Gen Physiol 114:723-742.
19. López-Barneo J, Hoshi T, Heinemann SH, Aldrich RW(1993) Effects of external cations and mutations in the pore region on C-type inactivation of Shaker potassium channels. Receptors Channels 1:61-71.
20. Zagotta WN, Hoshi T, Aldrich RW (1994) Shaker potassium channel gating. III: Evaluation of kinetic models for activation. J Gen Physiol 103:321-362. (Pubitemid 24068562)
21. Schoppa NE, Sigworth FJ (1998) Activation of Shaker potassium channels. III. An activation gating model for wild-type and V2 mutant channels. J Gen Physiol 111: 313-342. (Pubitemid 28113080)
22. Sack JT, Aldrich RW (2006) Binding of a gating modifier toxin induces intersubunit cooperativity early in the Shaker K channel's activation pathway. J Gen Physiol 128: 119-132. (Pubitemid 43967555)
23. Perozo E, MacKinnon R, Bezanilla F, Stefani E (1993) Gating currents from a nonconducting mutant reveal open-closed conformations in Shaker K+ channels. Neuron 11:353-358. (Pubitemid 23250352)
24. Yang Y, Yan Y, Sigworth FJ (1997) How does the W434F mutation block current in Shaker potassium channels? J Gen Physiol 109:779-789. (Pubitemid 27255942)
25. Bezanilla F, Perozo E, Papazian DM, Stefani E (1991) Molecular basis of gating charge immobilization in Shaker potassium channels. Science 254:679-683. (Pubitemid 21917383)
26. Gilly WF, Armstrong CM (1982) Divalent cations and the activation kinetics of potassium channels in squid giant axons. J Gen Physiol 79:965-996.
27. Frankenhaeuser B, Hodgkin AL (1957) The action of calcium on the electrical properties of squid axons. J Physiol 137:218-244.
28. Hille B, Woodhull AM, Shapiro BI (1975) Negative surface charge near sodium channels of nerve: Divalent ions, monovalent ions, and pH. Philos Trans R Soc Lond B Biol Sci 270:301-318.
29. Elinder F, Arhem P (1999) Role of individual surface charges of voltage-gated K channels. Biophys J 77:1358-1362.
30. Riggs JE (1989) Neurologic manifestations of fluid and electrolyte disturbances. Neurol Clin 7:509-523.
31. Horrigan FT, Heinemann SH, Hoshi T (2005) Heme regulates allosteric activation of the Slo1 BK channel. J Gen Physiol 126:7-21. (Pubitemid 40994105)
32. Armstrong CM, Chow RH (1987) Supercharging: A method for improving patch-clamp performance. Biophys J 52:133-136.