Abstract
Site-directed spin labelling (SDSL) in combination with electron paramagnetic resonance (EPR) spectroscopy is a powerful tool for the investigation of the structure and conformational dynamics of biomolecules including membrane proteins under native-like conditions. EPR spectroscopy of the spin-labelled molecules provides information about the spin label side chain mobility, its solvent accessibility, the polarity of its immediate environment and intra- or intermolecular distances to another paramagnetic centre or spin label. This chapter provides an overview of the basics as well as recent progress in SDSL and related EPR techniques. Continuous wave EPR spectra analyses and pulse EPR techniques are reviewed with special emphasis on applications to the membrane-embedded sensory rhodopsin–transducer complex mediating the photophobic response of the halophilic archaeum Natronomonas pharaonis, the maltose ABC importer MalFGK2 and the mechanosensitive channel MscS.
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- CrOx:
-
Chromium oxalate
- cw:
-
Continuous wave
- DEER:
-
Double electron–electron resonance
- DPPH:
-
Diphenylpikrylhydrazine
- DQC:
-
Double quantum coherence
- EPR:
-
Electron paramagnetic resonance
- HtrII:
-
Halobacterial transducer II
- MD:
-
Molecular dynamics
- MOMD:
-
Microscopic ordering with macroscopic disordering model
- NiEDDA:
-
Ni(II)-ethylenediaminediacetate
- PDB:
-
Protein data bank
- PELDOR:
-
Pulsed electron double resonance
- SDSL:
-
Site-directed spin labelling
- SR-EPR:
-
Saturation recovery EPR
- SRII:
-
Sensory rhodopsin II
- SRLS:
-
Slowly relaxing local structure
- T4L:
-
T4 lysozyme
References
Altenbach C, Flitsch SL, Khorana HG, Hubbell WL (1989) Structural studies on transmembrane proteins, 2: spin labeling of bacteriorhodopsin mutants at unique cysteines. Biochemistry 28:7806–7812
Altenbach C, Marti T, Khorana HG, Hubbell WL (1990) Transmembrane protein structure: spin labeling of bacteriorhodopsin mutants. Science 248:1088–1092
Bordignon E, Steinhoff HJ (2007) Membrane protein structure and dynamics studied by site-directed spin labeling ESR. In: Hemminga MA, Berliner LJ (eds) ESR spectroscopy in membrane biophysics. Springer, New York, pp 129–164
Hubbell WL, Mchaourab HS, Altenbach C, Lietzow MA (1996) Watching proteins move using site-directed spin labeling. Structure 4:779–783
Hubbell WL, Gross A, Langen R, Lietzow MA (1998) Recent advances in site-directed spin labeling of proteins. Curr Opin Struct Biol 8:649–656
Klare JP, Steinhoff HJ (2009) Spin labeling EPR. Photosynth Res 102:377–390
Klug CS, Feix JB (2008) Methods and applications of site-directed spin labeling EPR spectroscopy. In: Correia JJ, Detrich HW (eds) Methods in cell biology. Biophysical tools for biologists, volume one: in vitro techniques. Academic, New York, pp 617–658
Berliner LJ (ed) (1976) Spin labeling: theory and applications. Academic, New York
Berliner LJ (ed) (1979) Spin labeling II: theory and applications. Academic, New York
Berliner LJ, Reuben J (eds) (1989) Spin labeling theory and applications, Biological magnetic resonance, vol 8. Plenum Press, New York
Columbus L, Kalai T, Jekö J, Hideg K, Hubbell WL (2001) Molecular motion of spin labeled side chains in α-helices: analysis by variation of side chain structure. Biochemistry 40:3828–3846
Columbus L, Hubbell WL (2002) A new spin on protein dynamics. Trends Biochem Sci 27:288–295
Fleissner MR, Cascio D, Hubbell WL (2009) Structural origin of weakly ordered nitroxide motion in spin-labeled proteins. Protein Sci 18:893–908
Fleissner MR, Bridges MD, Brooks EK, Cascio D, Kalai T, Hideg K, Hubbell WL (2011) Structure and dynamics of a conformationally constrained nitroxide side chain and applications in EPR spectroscopy. Proc Natl Acad Sci USA 108:16241–16246
Mchaourab HS, Lietzow MA, Hideg K, Hubbell WL (1996) Motion of spin-labeled side chains in T4 lysozyme. Correlation with protein structure and dynamics. Biochemistry 35:7692–7704
Voet D, Voet JG (2004) Biochemistry, 3rd edn. Wiley, New York
Qin PZ, Hideg K, Feigon J, Hubbell WL (2003) Monitoring RNA base structure and dynamics using site-directed spin labeling. Biochemistry 42:6772–6783
Luecke H, Schobert B, Lanyi JK, Spudich EN, Spudich JL (2001) Crystal structure of sensory rhodopsin II at 2.4 Å: insights into color tuning and transducer interaction. Science 293:1499–1503
Isas JM, Langen R, Haigler HT, Hubbell WL (2002) Structure and dynamics of a helical hairpin and loop region in annexin 12: a site-directed spin labeling study. Biochemistry 41:1464–1473
Steinhoff HJ, Hubbell WL (1996) Calculation of electron paramagnetic resonance spectra from Brownian dynamics trajectories: application to nitroxide side chains in proteins. Biophys J 71:2201–2212
Beier C, Steinhoff HJ (2006) A structure-based simulation approach for electron paramagnetic resonance spectra using molecular and stochastic dynamics simulations. Biophys J 91:2647–2664
Barnes JP, Liang Z, Mchaourab HS, Freed JH, Hubbell WL (1999) A multifrequency electron spin resonance study of T4 lysozyme dynamics. Biophys J 76:3298–3306
Borbat PP, Costa-Filho AJ, Earle KA, Moscicki JK, Freed JH (2001) Electron spin resonance in studies of membranes and proteins. Science 291:266–269
Freed JH (1976) Theory of slow tumbling ESR spectra for nitroxides. In: Berliner LJ (ed) Spin labeling: theory and applications. Academic, New York, pp 53–132
Budil DE, Sale KL, Khairy K, Fajer PG (2006) Calculating slow-motional electron paramagnetic resonance spectra from molecular dynamics using a diffusion operator approach. J Phys Chem A 110:3703–3713
DeSensi SC, Rangel DP, Beth AH, Lybrand TP, Hustedt EJ (2008) Simulation of nitroxide electron paramagnetic resonance spectra from Brownian trajectories and molecular dynamics simulations. Biophys J 94:3798–3809
Oganesyan VS (2007) A novel approach to the simulation of nitroxide spin label EPR sdpectra from a single truncated dynamical trajectory. J Magn Reson 188:196–205
Sezer D, Freed JH, Roux B (2008) Parametrization, molecular dynamics simulation, and calculation of electron spin resonance spectra of a nitroxide spin label on a polyalanine α-helix. J Phys Chem B 112:5755–5767
Sezer D, Freed JH, Roux B (2008) Simulating electron spin resonance spectra of nitroxide spin labels from molecular dynamics and stochastic trajectories. J Chem Phys 128:165106–165116
Steinhoff HJ, Müller M, Beier C, Pfeiffer M (2000) Molecular dynamics simulation and EPR spectroscopy of nitroxide side chains in bacteriorhodopsin. J Mol Liquids 84:17–27
Gajula P, Borovykh IV, Beier C, Shkuropatova T, Gast P, Steinhoff HJ (2007) Spin-labeled photosynthetic reaction centers from Rhodobacter sphaeroides studied by electron paramagnetic resonance spectroscopy and molecular dynamics simulation. Appl Magn Reson 31:167–178
Dalton L (ed) (1985) EPR and advanced EPR studies of biological systems. CRC, Boca Raton
Budil DE, Earle KA, Freed JH (1993) Full determination of the rotational diffusion tensor by electron paramagnetic resonance at 250 GHz. J Phys Chem 97:1294–1303
Urban L (2012) PhD thesis, University of Osnabrück
Liang Z, Freed JH (1999) An assessment of the applicability of multifrequency ESR to study the complex dynamics of biomolecules. J Phys Chem B 103:6384–6396
Liang Z, Lou Y, Freed JH, Columbus L, Hubbell WL (2004) A multifrequency electron spin resonance study of T4 lysozyme dynamics using the slowly relaxing local structure model. J Phys Chem B 108:17649–17659
Zhang Z, Fleissner MR, Tipikin DS, Liang Z, Moscicki JK, Earle KA, Hubbell WL, Freed JH (2010) Multifrequency electron spin resonance study of the dynamics of spin labeled T4 lysozyme. J Phys Chem B 114:5503–5521
Polnaszek CF, Freed JH (1975) Electron spin resonance studies of anisotropic ordering, spin relaxation, and slow tumbling in liquid crystalline solvents. J Phys Chem 79:2283–2306
Freed JH (1977) Stochastic-molecular theory of spin–relaxation for liquid crystals. J Chem Phys 66:4183–4199
Cooper A (1976) Thermodynamic fluctuations in protein molecules. Proc Natl Acad Sci USA 73:2740–2741
Frauenfelder H, Parak FG, Young RD (1988) Conformational substates in proteins. Annu Rev Biophys Biophys Chem 17:451–479
Frauenfelder H, Sligar SG, Wolynes PG (1991) The energy landscapes and motions of proteins. Science 254:1598–1603
Guo ZF, Cascio D, Hideg K, Kalai T, Hubbell WL (2007) Structural determinants of nitroxide motion in spin-labeled proteins: tertiary contact and solvent-inaccessible sites in helix G of T4 lysozyme. Protein Sci 16:1069–1086
Guo ZF, Cascio D, Hideg K, Hubbell WL (2008) Structural determinants of nitroxide motion in spin-labeled proteins: solvent-exposed sites in helix B of T4 lysozyme. Protein Sci 17:228–239
Langen R, Oh KJ, Cascio D, Hubbell WL (2000) Crystal structures of spin labeled T4 lysozyme mutants: implications for the interpretation of EPR spectra in terms of structure. Biochemistry 39:8396–8405
Lopez CJ, Fleissner MR, Guo Z, Kusnetzow AN, Hubbell WL (2009) Osmolyte perturbation reveals conformational equilibria in spin-labeled proteins. Protein Sci 18:1637–1652
Bridges MD, Hideg K, Hubbell WL (2010) Resolving conformational and rotameric exchange in spin-labeled proteins using saturation recovery EPR. Appl Magn Reson 37:363–390
McCoy J, Hubbell WL (2011) High-pressure EPR reveals conformational equilibria and volumetric properties of spin-labeled proteins. Proc Natl Acad Sci USA 108:1331–1336
Yancey PH (2005) Organic osmolytes as compatible, metabolic and counteracting cytoprotectants in high osmolarity and other stresses. J Exp Biol 208:2819–2830
Arakawa T, Timasheff SN (1985) The stabilization of proteins by osmolytes. Biophys J 47:411–414
Kendrick BS, Chang BS, Arakawa T, Peterson B, Randolph TW, Manning MC, Carpenter JF (1997) Preferential exclusion of sucrose from recombinant interleukin-1 receptor antagonist: role in restricted conformational mobility and compaction of native state. Proc Natl Acad Sci USA 94:11917–11922
Cioni P, Bramanti E, Strambini GB (2005) Effects of sucrose on the internal dynamics of azurin. Biophys J 88:4213–4222
Timasheff S, Xie G (2003) Preferential interactions of urea with lysozyme and their linkage to protein denaturation. Biophys Chem 105:421–448
Lee JC, Timasheff SN (1981) The stabilization of proteins by sucrose. J Biol Chem 256:7193–7201
Huisjen M, Hyde JS (1974) A pulsed EPR spectrometer. Rev Sci Instrum 45:669–675
Percival PW, Hyde JS (1975) Pulsed EPR spectrometer, 2. Rev Sci Instrum 46:1522–1529
Li H, Akasaka K (2006) Conformational fluctuations of proteins revealed by variable pressure NMR. Biochim Biophys Acta 1764:331–345
Akasaka K (2006) Probing conformational fluctuations of proteins by pressure perturbation. Chem Rev 106:1814–1835
Bridgman PW (1914) The coagulation of albumen by pressure. J Biol Chem 19:511–512
Kauzmann W (1987) Thermodynamics of unfolding. Nature 325:763–764
Royer CA (2002) Revisiting volume changes in pressure-induced protein folding. Biochim Biophys Acta 1595:201–209
Altenbach C, Greenhalgh DA, Khorana HG, Hubbell WL (1994) A collision gradient method to determine the immersion depth of nitroxides in lipid bilayers: application to spin-labeled mutants of bacteriorhodopsin. Proc Natl Acad Sci USA 91:1667–1671
Marsh D, Dzikovski BG, Livshits VA (2006) Oxygen profiles in membranes. Biophys J 90:L49–L51
Altenbach C, Froncisz W, Hemker R, Mchaourab HS, Hubbell WL (2005) Accessibility of nitroxide side chains: absolute Heisenberg exchange rates from power saturation EPR. Biophys J 89:2103–2112
Farahbakhsh ZZ, Altenbach C, Hubbell WL (1992) Spin labeled cysteines as sensors for protein lipid interaction and conformation in rhodopsin. Photochem Photobiol 56:1019–1033
Poole CP (1983) Electron spin resonance. Wiley, New York
Altenbach C, Froncisz W, Hyde JS, Hubbell WL (1989) Conformation of spin-labeled melittin at membrane surfaces investigated by pulse saturation recovery and continuous wave power saturation electron-paramagnetic resonance. Biophys J 56:1183–1191
Nielsen RD, Canaan S, Gladden JA, Gelb MH, Mailer C, Robinson BH (2004) Comparing continuous wave progressive power saturation EPR and time domain saturation recovery EPR over the entire motional range of nitroxides psin labels. J Magn Reson 169:129–163
Bordignon E, Klare JP, Döbber MA, Wegener AA, Martell S, Engelhard M, Steinhoff HJ (2005) Structural analysis of a HAMP domain: the linker region of the phototransducer in complex with sensory rhodopsin II. J Biol Chem 280:38767–38775
Gordeliy VI, Labahn J, Moukhametzianov R, Efremov R, Granzin J, Schlesinger R, Büldt G, Savopol T, Scheidig AJ, Klare JP, Engelhard M (2002) Molecular basis of transmembrane signalling by sensory rhodopsin II-transducer complex. Nature 419:484–487
Yin JJ, Pasenkiewicz-Gierula M, Hyde JS (1987) Lateral diffusion of lipids in membranes by pulse saturation recovery electron-spin-resonance. Proc Natl Acad Sci USA 84:964–968
Pyka J, Ilnicki J, Altenbach C, Hubbell WL, Froncisz W (2005) Accessibility and dynamics of nitroxide side chains in T4 lysozyme measured by saturation recovery EPR. Biophys J 89:2059–2068
Haas DA, Sugano T, Mailer C, Robinson BH (1993) Motion in nitroxide spin labels: direct measurement of rotational correlation times by pulsed electron double resonance. J Phys Chem 97:2914–2921
Robinson BH, Haas DA, Mailer C (1994) Molecular dynamics in liquids: spin-lattice relaxation of nitroxide spin labels. Science 263:490–493
Marsh D (2010) Spin-label EPR for determining polarity and proticity in biomolecular assemblies: transmembrane profiles. Appl Magn Reson 37:435–454
Stone AJ (1963) Gauge invariance of the g tensor. Proc R Soc Lond A 271:424–434
Möbius K, Savitsky A, Wegener C, Plato M, Fuchs M, Schnegg A, Dubinskii AA, Grishin YA, Grigor’ev IA, Kühn M, Duché D, Zimmermann H, Steinhoff HJ (2005) Combining high-field EPR with site-directed spin labeling reveals unique information on proteins in action. Magn Reson Chem 43:S4–S19
Steinhoff HJ, Savitsky A, Wegener C, Pfeiffer N, Plato M, Möbius K (2000) High-field EPR studies of the structure and conformational changes of site-directed spin labeled bacteriorhodopsin. Biochim Biophys Acta 1457:253–262
Wegener C, Savitsky A, Pfeiffer M, Möbius K, Steinhoff HJ (2001) High-Field EPR-detected shifts of magnetic tensor components of spin label side chains reveal protein conformational changes: the proton entrance channel of bacteriorhodopsin. Appl Magn Reson 21:441–452
Steinhoff HJ, Lieutnant K, Schlitter J (1989) Residual motion of hemoglobin-bound spin labels as a probe for protein dynamics. Z Naturforsch C 44:280–288
Brutlach H, Bordignon E, Urban L, Klare JP, Reyher HJ, Engelhard M, Steinhoff HJ (2006) High-field EPR and site-directed spin labeling reveal a periodical polarity profile: the sequence 88 to 94 of the phototransducer, NpHtrII, in complex with sensory rhodopsin, NpSRII. Appl Magn Reson 30:359–372
Steinhoff HJ, Radzwill N, Thevis W, Lenz V, Brandenburg D, Antson A, Dodson GG, Wollmer A (1997) Determination of interspin distances between spin labels attached to insulin: comparison of electron paramagnetic resonance data with the X- ray structure. Biophys J 73:3287–3298
Smirnova TI, Smirnov AI, Paschenko SV, Poluektov OG (2007) Geometry of hydrogen bonds formed by lipid bilayer nitroxide probes: a high-frequency pulsed ENDOR/EPR study. J Am Chem Soc 129:3476–3477
Finiguerra MG, Blok H, Ubbink M, Huber M (2006) High-field (275 GHz) spin-label EPR for high-resolution polarity determination in proteins. J Magn Reson 180:197–202
Bordignon E, Brutlach H, Urban L, Hideg K, Savitsky A, Schnegg A, Gast P, Engelhard M, Groenen EJJ, Möbius K, Steinhoff HJ (2010) Heterogeneity in the nitroxide micro-environment: polarity and proticity effects in spin-labeled proteins studied by multi-frequency EPR. Appl Magn Reson 37:391–403
Borbat PP, Freed JH (2012) Pulse dipolar ESR: distance measurements. Struct Bond. doi:10.1007/430_2012_82
Steinhoff HJ, Dombrowsky O, Karim C, Schneiderhahn C (1991) Two-dimensional diffusion of small molecules on protein surfaces: an EPR study of the restricted translational diffusion of protein-bound spin labels. Eur Biophys Lett 20:293–303
Rabenstein MD, Shin YK (1995) Determination of the distance between 2 spin labels attached to a macromolecule. Proc Natl Acad Sci USA 92:8239–8243
Altenbach CA, Oh KJ, Trabanino RJ, Hideg K, Hubbell WL (2001) Estimation of inter-residue distances in spin labeled proteins at physiological temperatures: Experimental strategies and practical limitations. Biochemistry 40:15471–15482
Altenbach C, Hubbell WL (2008) Improved distance determination from dipolar broadening of EPR spectra, Biophys J 94, Supplement I, 826–832
Hustedt EJ, Smirnov AI, Laub CF, Cobb CE, Beth AH (1997) Molecular distances from dipolar coupled spin-labels: the global analysis of multifrequency continuous wave electron paramagnetic resonance data. Biophys J 72:1861–1877
McNulty JC, Silapie JL, Carnevali M, Farrar CT, Griffin RG, Formaggio F, Crisma M, Toniolo C, Millhauser GL (2001) Electron spin resonance of TOAC labeled peptides: folding transitions and high frequency spectroscopy. Biopolymers 55:479–485
Hanson P, Millhauser G, Formaggio F, Crisma M, Toniolo C (1996) ESR characterization of hexameric, helical peptides using double TOAC spin labeling. J Am Chem Soc 118:7618–7625
Hanson P, Anderson DJ, Martinez G, Millhauser G, Formaggio F, Crisma M, Toniolo C, Vita C (1998) Electron spin resonance and structural analysis of water soluble, alanine-rich peptides incorporating TOAC. Mol Phys 95:957–966
Rabenstein MD, Shin YK (1996) HIV-1 gp41 tertiary structure studied by EPR spectroscopy. Biochemistry 35:13922–13928
Xiao W, Poirier MA, Bennett MK, Shin YK (2001) The neuronal t-SNARE complex is a parallel four-helix bundle. Nat Struct Biol 8:308–311
Closs GL, Forbes MDE, Piotrowiak P (1992) Spin and reaction dynamics in flexible polymethylene biradicals as studied by EPR, NMR, and optical spectroscopy and magnetic field effects: measurements and mechanisms of scalar electron-spin spin coupling. J Am Chem Soc 114:3285–3294
Fiori WR, Millhauser GL (1995) Exploring the peptide 3(10)-helix-reversible-arrow-alpha-helix equilibrium with double-label electron-spin-resonance. Biopolymers 37:243–250
Eaton SS, More KM, Sawant BM, Eaton GR (1983) Use of the EPR half-field transition to determine the interspin distance and the orientation of the interspin vector in systems with two unpaired electrons. J Am Chem Soc 105:6560–6567
Persson M, Harbridge JR, Hammarstrom P, Mitri R, Martensson LG, Carlsson U, Eaton GR, Eaton SS (2001) Comparison of electron paramagnetic resonance methods to determine distances between spin labels on human carbonic anhydrase II. Biophys J 80:2886–2897
Borbat PP, Freed JH (1999) Multiple-quantum ESR and distance measurements. Chem Phys Lett 313:145–154
Pannier M, Veit S, Godt A, Jeschke G, Spiess HW (2000) Dead-time free measurement of dipole-dipole interactions between electron spins. J Magn Reson 142:331–340
Ward R, Bowman A, Sozudogru E, El-Mkami H, Owen-Hughes T, Norman DG (2010) EPR distance measurements in deuterated proteins. J Magn Reson 207:164–167
Schiemann O, Prisner TF (2007) Long-range distance determinations in biomacromolecules by EPR spectroscopy. Q Rev Biophys 40:1–53
Banham JE, Baker CM, Ceola S, Day IJ, Grant GH, Groenen EJJ, Rodgers CT, Jeschke G, Timmel CR (2008) Distance measurements in the borderline region of applicability of CW EPR and DEER: a model study on a homologous series of spin-labelled peptides. J Magn Reson 191:202–218
Jeschke G (2012) Interpretation of dipolar EPR data in terms of protein structure. Struct Bond. doi:10.1007/430_2011_61
Klare JP, Gordeliy VI, Labahn J, Büldt G, Steinhoff HJ, Engelhard M (2004) The archaeal sensory rhodopsin II/transducer complex: a model for transmembrane signal transfer. FEBS Lett 564:219–224
Klare JP, Chizhov I, Engelhard M (2007) Microbial rhodopsins: scaffolds for ion pumps, channels, and sensors. Results Probl Cell Differ 45:73–122
Klare JP, Bordignon E, Engelhard M, Steinhoff HJ (2011) Transmembrane signal transduction in archaeal phototaxis: the sensory rhodopsin II-transducer complex studied by electron paramagnetic resonance spectroscopy. Eur J Cell Biol 90:731–739
Wegener AA, Klare JP, Engelhard M, Steinhoff HJ (2001) Structural insights into the early steps of receptor-transducer signal transfer in archaeal phototaxis. EMBO J 20:5312–5319
Döbber M, Bordignon E, Klare JP, Holterhues J, Martell S, Mennes N, Li L, Engelhard M, Steinhoff HJ (2008) Salt-driven equilibrium between two confromations in the HAMP domain from Natronomonas pharaonis: the language of signal transfer? J Biol Chem 283:28691–28701
Hulko M, Berndt F, Gruber M, Linder J, Truffault V, Schulz A, Martin J, Schultz JE, Lupas AN, Coles M (2006) The HAMP domain structure implies helix rotation in transmembrane signaling. Cell 126:929–940
Holland IB, Cole SPC, Kuchler K, Higgins CF (2002) ABC proteins: from bacteria to man. Academic, New York
Grote M, Polyhach Y, Jeschke G, Steinhoff HJ, Schneider E, Bordignon E (2009) Transmembrane signaling in the maltose ABC transporter MALFGK2-E: the periplasmic MalF-P2 loop communicates substrate availability to the ATP-bound MalK dimer. J Biol Chem 284:17521–17526
Oldham ML, Davidson AL, Chen J (2008) Structural insights into ABC transporter mechanism. Curr Opin Struct Biol 18:726–733
Lu G, Westbrooks JM, Davidson AL, Chen J (2005) ATP hydrolysis is required to reset the ATP-binding cassette dimer into the resting-state conformation. Proc Natl Acad Sci USA 102:17969–17974
Oldham ML, Khare D, Quiocho FA, Davidson AL, Chen J (2007) Crystal structure of a catalytic intermediate of the maltose transporter. Nature 450:515–521
Grote M, Bordignon E, Polyhach Y, Jeschke G, Steinhoff HJ, Schneider E (2008) A comparative EPR study of the nucleotide-binding domains’ catalytic cycle in the assembled maltose ABC-importer. Biophys J 95:2924–2938
Vasquez V, Sotomayor M, Marien-Cortez D, Roux B, Schulten K, Perozo E (2008) Three-dimensional architecture of membrane-embedded MscS in the closed conformation. J Mol Biol 378:55–70
Vasquez V, Sotomayor M, Cordero-Morales J, Schulten K, Perozo E (2008) A structural mechanism for MscS gating in lipid bilayers. Science 321:1210–1214
Shelke SA, Sigurdsson STh (2011) Site-directed nitroxide spin labeling of biopolymers. Struct Bond. doi:10.1007/430_2011_62 (in the first volume of this series)
Plato M, Steinhoff H-J, Wegener C, Törring JT, Savitsky A, Möbius K (2002) Molecular orbital study of polarity and hydrogen bonding effects on the g and hyperfine tensors of site directed NO spin labelled bacteriorhodopsin. Mol Phys 100:3711–3721
Griffith OH, Dehlinger PJ, Van SP (1974) Shape of the hydrophobic barrier of phospholipid bilayers (evidence for water penetration in biological membranes). J Membrane Biol 15:159–192
Klare JP, Bordignon E, Döbber MA, Fitter J, Kriegsmann J, Chizhov I, Steinhoff H-J, Engelhard M (2006) Effects of solubilization on the structure and function of the sensory Rhodopsin II/Transducer Complex. J Mol Biol 356:1207–1221
Jeschke G, Chechik V, Ionita P, Godt A, Zimmermann H, Banham JE, Timmel CR, Hilger D, Jung H (2006) DeerAnalysis2006 - a comprehensive software package for analyzing pulsed ELDOR data. Appl Magn Reson 30:473–498
Likhtenshtein GI (1976) Spin labeling methods in molecular biology. Wiley, New York
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Part of this work was supported by the Deutsche Forschungsgemeinschaft (SFB 944/P10).
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Klare, J.P., Steinhoff, HJ. (2013). Structural Information from Spin-Labelled Membrane-Bound Proteins. In: Timmel, C., Harmer, J. (eds) Structural Information from Spin-Labels and Intrinsic Paramagnetic Centres in the Biosciences. Structure and Bonding, vol 152. Springer, Berlin, Heidelberg. https://doi.org/10.1007/430_2012_88
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