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Magic-Angle-Spinning Solid-State NMR Structure of Influenza A M2 Transmembrane Domain
Authors
Hong, M., Cady, S.D., Mishanina, T.V.
Assembly
M2 Transmembrane Peptide
Entity
1. M2 Transmembrane Peptide (polymer, Thiol state: not present), 25 monomers, 2686.196 × 4 Da Detail

SSDPLVVAAS IIGILHLIAW ILDRL


2. 308 (non-polymer), 151.249 Da
Total weight
10896.033 Da
Max. entity weight
2686.196 Da
Source organism
Alphainfluenzavirus
Exptl. method
solid-state NMR
Refine. method
torsion angle dynamics
Data set
assigned_chemical_shifts
Chem. Shift Complete
Sequence coverage: 44.0 %, Completeness: 43.1 %, Completeness (bb): 43.9 % Detail

Polymer type: polypeptide(L)

Total13C15N
All43.1 % (62 of 144)42.9 % (51 of 119)44.0 % (11 of 25)
Backbone43.9 % (43 of 98)43.2 % (32 of 74)45.8 % (11 of 24)
Sidechain41.4 % (29 of 70)42.0 % (29 of 69) 0.0 % (0 of 1)
Aromatic 0.0 % (0 of 8) 0.0 % (0 of 7) 0.0 % (0 of 1)
Methyl59.3 % (16 of 27)59.3 % (16 of 27)

1. M2 Transmembrane Peptide

SSDPLVVAAS IIGILHLIAW ILDRL

Sample

Solvent system Solid-State NMR: Hydrated DLPC gel, approx. 50% H2O by weight. DLPC:M2TMP:Amantadine 15:1:8, Pressure 1 atm, Temperature 243 K, pH 7.5, Details Solid-State NMR: DLPC:M2TMP:amantadine 15:1:8, 10 mM phosphate buffer, 1 mM EDTA, 0.1 mM NaN3, pH 7.5.


#NameIsotope labelingTypeConcentration
1M2 Transmembrane PeptideSelective U-13C, 15N labeled4.0 ~ 6.0 mg
2Amantadinenatural abundance15.0 ~ 25.0 mg
3DLPCnatural abundance15.0 ~ 25.0 mg
4sodium phosphatenatural abundance10 mM
5sodium azidenatural abundance.1 mM
6EDTAnatural abundance1 mM
7H2Onatural abundance20.0 ~ 25.0 mg

Protein Blocks Logo
Calculated from 1 models in PDB: 2KAD, Strand ID: A, B, C, D Detail


Release date
2009-02-03
Citation 1
Structure of amantadine-bound M2 transmembrane peptide of influenza A in lipid bilayers from magic-angle-spinning solid-state NMR: the role of Ser31 in amantadine binding
Cady, S.D., Mishanina, T.V., Hong, M.
J. Mol. Biol. (2009), 385, 1127-1141, PubMed 19061899 , DOI 10.1016/j.jmb.2008.11.022 ,
Citation 2
Amantadine-induced conformational and dynamical changes of the influenza M2 transmembrane proton channel
Cady, S.D., Hong, M.
Proc. Natl. Acad. Sci. U. S. A. (2008), 105, 1483-1488, PubMed 18230730 , DOI 10.1073/pnas.0711500105 ,
Citation 3
Side-chain conformation of the M2 transmembrane peptide proton channel of influenza a virus from 19F solid-state NMR
Luo, W., Mani, R., Hong, M.
J. Phys. Chem. B (2007), 111, 10825-10832, PubMed 17705425 , DOI 10.1021/jp073823k ,
Citation 4
Determination of the oligomeric number and intermolecular distances of membrane protein assemblies by anisotropic 1H-driven spin diffusion NMR spectroscopy
Luo, W., Hong, M.
J. Am. Chem. Soc. (2006), 128, 7242-7251, PubMed 16734478 , DOI 10.1021/ja0603406 ,
Related entities 1. M2 Transmembrane Peptide, : 1 : 66 : 62 entities Detail
Interaction partners 1. M2 Transmembrane Peptide, : 12 interactors Detail
Experiments performed 4 experiments Detail
NMR combined restraints 2 contents Detail
Keywords influenza A, lipid bilayers, proton channel, solid-state NMR, transmembrane helix