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Items: 1 to 50 of 92

1.

Streptococcal phosphotransferase system imports unsaturated hyaluronan disaccharide derived from host extracellular matrices.

Oiki S, Nakamichi Y, Maruyama Y, Mikami B, Murata K, Hashimoto W.

PLoS One. 2019 Nov 7;14(11):e0224753. doi: 10.1371/journal.pone.0224753. eCollection 2019.

2.

Queueing arrival and release mechanism for K+ permeation through a potassium channel.

Sumikama T, Oiki S.

J Physiol Sci. 2019 Nov;69(6):919-930. doi: 10.1007/s12576-019-00706-4. Epub 2019 Aug 27.

PMID:
31456113
3.

High-speed AFM reveals accelerated binding of agitoxin-2 to a K+ channel by induced fit.

Sumino A, Sumikama T, Uchihashi T, Oiki S.

Sci Adv. 2019 Jul 3;5(7):eaax0495. doi: 10.1126/sciadv.aax0495. eCollection 2019 Jul.

4.

Substrate recognition by bacterial solute-binding protein is responsible for import of extracellular hyaluronan and chondroitin sulfate from the animal host.

Oiki S, Sato M, Mikami B, Murata K, Hashimoto W.

Biosci Biotechnol Biochem. 2019 Oct;83(10):1946-1954. doi: 10.1080/09168451.2019.1630250. Epub 2019 Jun 16.

PMID:
31204616
5.

Drop-in-well chamber for droplet interface bilayer with built-in electrodes.

Urakubo K, Iwamoto M, Oiki S.

Methods Enzymol. 2019;621:347-363. doi: 10.1016/bs.mie.2019.02.012. Epub 2019 Mar 21.

PMID:
31128788
6.

In bulla functional channel expression systems that mimic bacterial synthetic membranes.

Iwamoto M, Oiki S.

Methods Enzymol. 2019;621:231-244. doi: 10.1016/bs.mie.2019.02.011. Epub 2019 Mar 14.

PMID:
31128781
7.

A concise method for quantitative analysis of interactions between lipids and membrane proteins.

Inada M, Kinoshita M, Sumino A, Oiki S, Matsumori N.

Anal Chim Acta. 2019 Jun 20;1059:103-112. doi: 10.1016/j.aca.2019.01.042. Epub 2019 Feb 1.

PMID:
30876624
8.

Lipid Bilayer Experiments with Contact Bubble Bilayers for Patch-Clampers.

Iwamoto M, Oiki S.

J Vis Exp. 2019 Jan 16;(143). doi: 10.3791/58840.

PMID:
30735182
9.

Constitutive boost of a K+ channel via inherent bilayer tension and a unique tension-dependent modality.

Iwamoto M, Oiki S.

Proc Natl Acad Sci U S A. 2018 Dec 18;115(51):13117-13122. doi: 10.1073/pnas.1812282115. Epub 2018 Dec 3.

10.

Probiotics in human gut microbiota can degrade host glycosaminoglycans.

Kawai K, Kamochi R, Oiki S, Murata K, Hashimoto W.

Sci Rep. 2018 Jul 13;8(1):10674. doi: 10.1038/s41598-018-28886-w.

11.

Thylakoid membranes contain a non-selective channel permeable to small organic molecules.

Kojima S, Iwamoto M, Oiki S, Tochigi S, Takahashi H.

J Biol Chem. 2018 May 18;293(20):7777-7785. doi: 10.1074/jbc.RA118.002367. Epub 2018 Mar 30.

12.

Concurrent In Vitro Synthesis and Functional Detection of Nascent Activity of the KcsA Channel under a Membrane Potential.

Iwamoto M, Elfaramawy MA, Yamatake M, Matsuura T, Oiki S.

ACS Synth Biol. 2018 Apr 20;7(4):1004-1011. doi: 10.1021/acssynbio.7b00454. Epub 2018 Mar 28.

PMID:
29566487
13.

Lipid Bilayers Manipulated through Monolayer Technologies for Studies of Channel-Membrane Interplay.

Oiki S, Iwamoto M.

Biol Pharm Bull. 2018;41(3):303-311. doi: 10.1248/bpb.b17-00708. Review.

14.

Alternative substrate-bound conformation of bacterial solute-binding protein involved in the import of mammalian host glycosaminoglycans.

Oiki S, Kamochi R, Mikami B, Murata K, Hashimoto W.

Sci Rep. 2017 Dec 5;7(1):17005. doi: 10.1038/s41598-017-16801-8.

15.

Structure and dynamics of solvent molecules inside the polytheonamide B channel in different environments: a molecular dynamics study.

Kalathingal M, Sumikama T, Mori T, Oiki S, Saito S.

Phys Chem Chem Phys. 2018 Jan 31;20(5):3334-3348. doi: 10.1039/c7cp06299k.

PMID:
29199752
16.

Channel Formation and Membrane Deformation via Sterol-Aided Polymorphism of Amphidinol 3.

Iwamoto M, Sumino A, Shimada E, Kinoshita M, Matsumori N, Oiki S.

Sci Rep. 2017 Sep 7;7(1):10782. doi: 10.1038/s41598-017-11135-x.

17.

Membrane Perfusion of Hydrophobic Substances Around Channels Embedded in the Contact Bubble Bilayer.

Iwamoto M, Oiki S.

Sci Rep. 2017 Jul 31;7(1):6857. doi: 10.1038/s41598-017-07048-4.

18.

A bacterial ABC transporter enables import of mammalian host glycosaminoglycans.

Oiki S, Mikami B, Maruyama Y, Murata K, Hashimoto W.

Sci Rep. 2017 Apr 21;7(1):1069. doi: 10.1038/s41598-017-00917-y.

19.

Oriented Reconstitution of the Full-Length KcsA Potassium Channel in a Lipid Bilayer for AFM Imaging.

Sumino A, Uchihashi T, Oiki S.

J Phys Chem Lett. 2017 Feb 16;8(4):785-793. doi: 10.1021/acs.jpclett.6b03058. Epub 2017 Feb 1.

PMID:
28139934
20.

Digitalized K(+) Occupancy in the Nanocavity Holds and Releases Queues of K(+) in a Channel.

Sumikama T, Oiki S.

J Am Chem Soc. 2016 Aug 17;138(32):10284-92. doi: 10.1021/jacs.6b05270. Epub 2016 Aug 8.

21.

Conformational Change in the Active Site of Streptococcal Unsaturated Glucuronyl Hydrolase Through Site-Directed Mutagenesis at Asp-115.

Nakamichi Y, Oiki S, Mikami B, Murata K, Hashimoto W.

Protein J. 2016 Aug;35(4):300-9. doi: 10.1007/s10930-016-9673-y.

PMID:
27402448
22.

Structural determinants in bacterial 2-keto-3-deoxy-D-gluconate dehydrogenase KduD for dual-coenzyme specificity.

Takase R, Maruyama Y, Oiki S, Mikami B, Murata K, Hashimoto W.

Proteins. 2016 Jul;84(7):934-47. doi: 10.1002/prot.25042. Epub 2016 Apr 21.

PMID:
27028675
23.

Rectified Proton Grotthuss Conduction Across a Long Water-Wire in the Test Nanotube of the Polytheonamide B Channel.

Matsuki Y, Iwamoto M, Mita K, Shigemi K, Matsunaga S, Oiki S.

J Am Chem Soc. 2016 Mar 30;138(12):4168-77. doi: 10.1021/jacs.5b13377. Epub 2016 Mar 21.

PMID:
26959718
24.

Mechanism for attenuated outward conductance induced by mutations in the cytoplasmic pore of Kir2.1 channels.

Chang HK, Iwamoto M, Oiki S, Shieh RC.

Sci Rep. 2015 Dec 18;5:18404. doi: 10.1038/srep18404.

25.

Surface-enhanced IR absorption spectroscopy of the KcsA potassium channel upon application of an electric field.

Yamakata A, Shimizu H, Oiki S.

Phys Chem Chem Phys. 2015 Sep 7;17(33):21104-11. doi: 10.1039/c5cp02681d. Epub 2015 Jul 6. Review.

PMID:
26147491
26.

Channel function reconstitution and re-animation: a single-channel strategy in the postcrystal age.

Oiki S.

J Physiol. 2015 Jun 15;593(12):2553-73. doi: 10.1113/JP270025. Epub 2015 May 14. Review.

27.

Contact bubble bilayers with flush drainage.

Iwamoto M, Oiki S.

Sci Rep. 2015 Mar 16;5:9110. doi: 10.1038/srep09110.

28.

Metabolic fate of unsaturated glucuronic/iduronic acids from glycosaminoglycans: molecular identification and structure determination of streptococcal isomerase and dehydrogenase.

Maruyama Y, Oiki S, Takase R, Mikami B, Murata K, Hashimoto W.

J Biol Chem. 2015 Mar 6;290(10):6281-92. doi: 10.1074/jbc.M114.604546. Epub 2015 Jan 20.

29.

Specific interactions between alkali metal cations and the KcsA channel studied using ATR-FTIR spectroscopy.

Furutani Y, Shimizu H, Asai Y, Oiki S, Kandori H.

Biophys Physicobiol. 2015 Sep 12;12:37-45. doi: 10.2142/biophysico.12.0_37. eCollection 2015.

30.

pH-dependent promotion of phospholipid flip-flop by the KcsA potassium channel.

Nakao H, Ikeda K, Iwamoto M, Shimizu H, Oiki S, Ishihama Y, Nakano M.

Biochim Biophys Acta. 2015 Jan;1848(1 Pt A):145-50.

31.

Localization of Tektin 1 at both acrosome and flagella of mouse and bull spermatozoa.

Oiki S, Hiyama E, Gotoh T, Iida H.

Zoolog Sci. 2014 Feb;31(2):101-7. doi: 10.2108/zsj.31.101.

PMID:
24521320
32.

Gating-Associated Clustering-Dispersion Dynamics of the KcsA Potassium Channel in a Lipid Membrane.

Sumino A, Yamamoto D, Iwamoto M, Dewa T, Oiki S.

J Phys Chem Lett. 2014 Feb 6;5(3):578-84. doi: 10.1021/jz402491t. Epub 2014 Jan 27.

PMID:
26276612
33.

Paradoxical one-ion pore behavior of the long β-helical peptide of marine cytotoxic polytheonamide B.

Iwamoto M, Matsunaga S, Oiki S.

Sci Rep. 2014 Jan 10;4:3636. doi: 10.1038/srep03636.

34.

The synergic modeling for the binding of fluoroquinolone antibiotics to the hERG potassium channel.

Ryu S, Imai YN, Oiki S.

Bioorg Med Chem Lett. 2013 Jul 1;23(13):3848-51. doi: 10.1016/j.bmcl.2013.04.074. Epub 2013 May 7.

35.

Biased Brownian stepping rotation of FoF1-ATP synthase driven by proton motive force.

Watanabe R, Tabata KV, Iino R, Ueno H, Iwamoto M, Oiki S, Noji H.

Nat Commun. 2013;4:1631. doi: 10.1038/ncomms2631.

PMID:
23535652
36.

The open gate structure of the membrane-embedded KcsA potassium channel viewed from the cytoplasmic side.

Sumino A, Sumikama T, Iwamoto M, Dewa T, Oiki S.

Sci Rep. 2013;3:1063. doi: 10.1038/srep01063. Epub 2013 Jan 15.

37.

Amphipathic antenna of an inward rectifier K+ channel responds to changes in the inner membrane leaflet.

Iwamoto M, Oiki S.

Proc Natl Acad Sci U S A. 2013 Jan 8;110(2):749-54. doi: 10.1073/pnas.1217323110. Epub 2012 Dec 24.

38.

ATR-FTIR Spectroscopy Revealing the Different Vibrational Modes of the Selectivity Filter Interacting with K(+) and Na(+) in the Open and Collapsed Conformations of the KcsA Potassium Channel.

Furutani Y, Shimizu H, Asai Y, Fukuda T, Oiki S, Kandori H.

J Phys Chem Lett. 2012 Dec 20;3(24):3806-10. doi: 10.1021/jz301721f. Epub 2012 Dec 10.

PMID:
26291114
39.

Functional equilibrium of the KcsA structure revealed by NMR.

Imai S, Osawa M, Mita K, Toyonaga S, Machiyama A, Ueda T, Takeuchi K, Oiki S, Shimada I.

J Biol Chem. 2012 Nov 16;287(47):39634-41. doi: 10.1074/jbc.M112.401265. Epub 2012 Sep 28.

40.

Counting ion and water molecules in a streaming file through the open-filter structure of the K channel.

Iwamoto M, Oiki S.

J Neurosci. 2011 Aug 24;31(34):12180-8. doi: 10.1523/JNEUROSCI.1377-11.2011.

41.

Oriented reconstitution of a membrane protein in a giant unilamellar vesicle: experimental verification with the potassium channel KcsA.

Yanagisawa M, Iwamoto M, Kato A, Yoshikawa K, Oiki S.

J Am Chem Soc. 2011 Aug 3;133(30):11774-9. doi: 10.1021/ja2040859. Epub 2011 Jul 13.

PMID:
21702488
42.
43.

A mesoscopic approach to understanding the mechanisms underlying the ion permeation on the discrete-state diagram.

Oiki S, Iwamoto M, Sumikama T.

J Gen Physiol. 2010 Sep;136(3):363-5. doi: 10.1085/jgp.201010504. No abstract available.

44.

A cytotoxic peptide from a marine sponge exhibits ion channel activity through vectorial-insertion into the membrane.

Iwamoto M, Shimizu H, Muramatsu I, Oiki S.

FEBS Lett. 2010 Sep 24;584(18):3995-9. doi: 10.1016/j.febslet.2010.08.007. Epub 2010 Aug 11.

45.

Temperature dependence of proton permeation through a voltage-gated proton channel.

Kuno M, Ando H, Morihata H, Sakai H, Mori H, Sawada M, Oiki S.

J Gen Physiol. 2009 Sep;134(3):191-205. doi: 10.1085/jgp.200910213.

46.
47.

Topological mapping of the asymmetric drug binding to the human ether-à-go-go-related gene product (HERG) potassium channel by use of tandem dimers.

Myokai T, Ryu S, Shimizu H, Oiki S.

Mol Pharmacol. 2008 Jun;73(6):1643-51. doi: 10.1124/mol.107.042085. Epub 2008 Mar 7.

PMID:
18326583
48.

Global twisting motion of single molecular KcsA potassium channel upon gating.

Shimizu H, Iwamoto M, Konno T, Nihei A, Sasaki YC, Oiki S.

Cell. 2008 Jan 11;132(1):67-78. doi: 10.1016/j.cell.2007.11.040.

49.

Synergistic action of polyanionic and non-polar cofactors in fibrillation of human islet amyloid polypeptide.

Konno T, Oiki S, Morii T.

FEBS Lett. 2007 Apr 17;581(8):1635-8. Epub 2007 Mar 21.

50.

Surface structure and its dynamic rearrangements of the KcsA potassium channel upon gating and tetrabutylammonium blocking.

Iwamoto M, Shimizu H, Inoue F, Konno T, Sasaki YC, Oiki S.

J Biol Chem. 2006 Sep 22;281(38):28379-86. Epub 2006 Jul 11.

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