電気化学的勾配
出典: フリー百科事典『ウィキペディア（Wikipedia）』 (2021/03/05 18:09 UTC 版)
電気化学的勾配（でんきかがくてきこうばい、英: electrochemical gradient）とは電気化学ポテンシャルの勾配であり、通常は膜を越えて移動するイオンについてのものである。勾配は、化学的勾配（膜を挟んだ溶質濃度の差）と電気的勾配（膜を挟んだ電荷の差）という2つの部分から構成される。透過性の膜を挟んだ両側のイオン濃度が不均等であるときには、イオンは高濃度側から低濃度側へ単純拡散によって膜を越えて移動する。イオンは電荷を持っているため、膜を挟んで電位も形成される。膜を挟んで電荷が不均等に分布している場合、膜の両側で電荷が均等となるまでイオンの拡散を駆動する力が電位差によって生み出される[1]。
- ^ a b Nelson, David; Cox, Michael (2013). Lehninger Principles of Biochemistry. New York: W.H. Freeman. pp. 403. ISBN 978-1-4292-3414-6
- ^ Nath, Sunil; Villadsen, John (2015-03-01). “Oxidative phosphorylation revisited” (英語). Biotechnology and Bioengineering 112 (3): 429–437. doi:10.1002/bit.25492. ISSN 1097-0290. PMID 25384602.
- ^ Yang, Huanghe; Zhang, Guohui; Cui, Jianmin (2015-01-01). “BK channels: multiple sensors, one activation gate”. Frontiers in Physiology 6: 29. doi:10.3389/fphys.2015.00029. PMC: 4319557. PMID 25705194.
- ^ Shattock, Michael J.; Ottolia, Michela; Bers, Donald M.; Blaustein, Mordecai P.; Boguslavskyi, Andrii; Bossuyt, Julie; Bridge, John H. B.; Chen-Izu, Ye et al. (2015-03-15). “Na+/Ca2+ exchange and Na+/K+-ATPase in the heart” (英語). The Journal of Physiology 593 (6): 1361–1382. doi:10.1113/jphysiol.2014.282319. ISSN 1469-7793. PMC: 4376416. PMID 25772291.
- ^ a b Aperia, Anita; Akkuratov, Evgeny E.; Fontana, Jacopo Maria; Brismar, Hjalmar (2016-04-01). “Na+-K+-ATPase, a new class of plasma membrane receptors” (英語). American Journal of Physiology. Cell Physiology 310 (7): C491–C495. doi:10.1152/ajpcell.00359.2015. ISSN 0363-6143. PMID 26791490.
- ^ a b Nelson, David; Cox, Michael (2013). Lehninger Principles of Biochemistry. New York: W.H. Freeman. pp. 464. ISBN 978-1-4292-3414-6
- ^ Poburko, Damon; Demaurex, Nicolas (2012-04-24). “Regulation of the mitochondrial proton gradient by cytosolic Ca2+ signals” (英語). Pflügers Archiv: European Journal of Physiology 464 (1): 19–26. doi:10.1007/s00424-012-1106-y. ISSN 0031-6768. PMID 22526460.
- ^ Nelson, David; Cox, Michael (2013). Lehninger Principles of Biochemistry. New York: W.H. Freeman. pp. 743–745. ISBN 978-1-4292-3414-6
- ^ Nelson, David; Cox, Michael (2013). Lehninger Principles of Biochemistry. New York: W.H. Freeman. pp. 744. ISBN 978-1-4292-3414-6
- ^ Nelson, David; Cox, Michael (2013). Lehninger Principles of Biochemistry. New York: W.H. Freeman. pp. 769–770. ISBN 978-1-4292-3414-6
- ^ Nelson, David; Cox, Michael (2013). Lehninger Principles of Biochemistry. New York: W.H. Freeman. pp. 770. ISBN 978-1-4292-3414-6
- ^ Höhner, Ricarda; Aboukila, Ali; Kunz, Hans-Henning; Venema, Kees (2016-01-01). “Proton Gradients and Proton-Dependent Transport Processes in the Chloroplast”. Frontiers in Plant Science 7: 218. doi:10.3389/fpls.2016.00218. PMC: 4770017. PMID 26973667.
- ^ Nelson, David; Cox, Michael (2013). Lehninger Principles of Biochemistry. New York: W.H. Freeman. pp. 464–465. ISBN 978-1-4292-3414-6
- ^ Eisenberg, Bob (2013-05-07). “Interacting Ions in Biophysics: Real is not Ideal”. Biophysical Journal 104 (9): 1849–1866. arXiv:1305.2086. Bibcode: 2013BpJ...104.1849E. doi:10.1016/j.bpj.2013.03.049. PMC: 3647150. PMID 23663828.
- ^ Nelson, David; Cox, Michael (2013). Lehninger Principles of Biochemistry. New York: W.H. Freeman. pp. 465. ISBN 978-1-4292-3414-6
- ^ Philips, Ron Milo & Ron. “» What are the concentrations of different ions in cells?” (英語). 2019年6月7日閲覧。
- ^ “Table 15-1, Typical Ion Concentrations in Invertebrates and Vertebrates” (英語). www.ncbi.nlm.nih.gov (2000年). 2019年6月7日閲覧。
- ^ “The following table gives an idea of the intra and extra cellular ion concentrations in a squid axon and a mammalian cell”. www.chm.bris.ac.uk. 2019年6月7日閲覧。
- ^ Scientific Tables. 565 (Seventh ed.). Basel: Ciba-Geigy Limited. pp. 653–654. ISBN 978-3-9801244-0-9
- ^ a b c Spitzer, Kenneth W.; Vaughan-Jones, Richard D. (2003), Karmazyn, Morris; Avkiran, Metin; Fliegel, Larry, eds., “Regulation of Intracellular pH in Mammalian Cells” (英語), The Sodium-Hydrogen Exchanger: From Molecule to its Role in Disease (Springer US): pp. 1–15, doi:10.1007/978-1-4615-0427-6_1, ISBN 9781461504276
- ^ Slonczewski, Joan L.; Wilks, Jessica C. (2007-08-01). “pH of the Cytoplasm and Periplasm of Escherichia coli: Rapid Measurement by Green Fluorescent Protein Fluorimetry” (英語). Journal of Bacteriology 189 (15): 5601–5607. doi:10.1128/JB.00615-07. ISSN 0021-9193. PMC: 1951819. PMID 17545292.
- ^ Brewer, Peter G. (September 1, 2008). Rising Acidity in the Ocean: The Other CO2 Problem. doi:10.1038/scientificamericanearth0908-22.
- ^ a b c d Gunner, M. R.; Amin, Muhamed; Zhu, Xuyu; Lu, Jianxun (2013-08-01). “Molecular mechanisms for generating transmembrane proton gradients”. Biochimica et Biophysica Acta (BBA) - Bioenergetics. Metals in Bioenergetics and Biomimetics Systems 1827 (8–9): 892–913. doi:10.1016/j.bbabio.2013.03.001. PMC: 3714358. PMID 23507617.
- ^ Wickstrand, Cecilia; Dods, Robert; Royant, Antoine; Neutze, Richard (2015-03-01). “Bacteriorhodopsin: Would the real structural intermediates please stand up?”. Biochimica et Biophysica Acta (BBA) - General Subjects. Structural biochemistry and biophysics of membrane proteins 1850 (3): 536–553. doi:10.1016/j.bbagen.2014.05.021. PMID 24918316.
- ^ Nelson, David; Cox, Michael (2013). Lehninger Principles of Biochemistry. New York: W.H. Freeman. pp. 782–783. ISBN 978-1-4292-3414-6
- ^ Schöttler, Mark Aurel; Tóth, Szilvia Z.; Boulouis, Alix; Kahlau, Sabine (2015-05-01). “Photosynthetic complex stoichiometry dynamics in higher plants: biogenesis, function, and turnover of ATP synthase and the cytochrome b 6 f complex” (英語). Journal of Experimental Botany 66 (9): 2373–2400. doi:10.1093/jxb/eru495. ISSN 0022-0957. PMID 25540437.
- ^ a b c d e f Sun, Fei; Zhou, Qiangjun; Pang, Xiaoyun; Xu, Yingzhi; Rao, Zihe (2013-08-01). “Revealing various coupling of electron transfer and proton pumping in mitochondrial respiratory chain”. Current Opinion in Structural Biology 23 (4): 526–538. doi:10.1016/j.sbi.2013.06.013. PMID 23867107.
[続きの解説]
「電気化学的勾配」の続きの解説一覧
- 1 電気化学的勾配とは
- 2 電気化学的勾配の概要
- 3 生物学
- 4 イオン勾配
- 5 プロトン勾配
- 6 関連文献
- 電気化学的勾配のページへのリンク
