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Influenza B M2 Proton Channel in the Closed State - SSNMR Structure at pH 7.5
Authors
Mandala, V.S., Loftis, A.R., Shcherbakov, A.S., Pentelute, B.L., Hong, M.
Assembly
BM2 protein
Entity
1. BM2 protein (polymer, Thiol state: all free), 51 monomers, 5944.072 × 4 Da Detail

MFEPFQILSI CSFILSALHF MAWTIGHLNQ IKRGVNMKIR IKGPNKETIN R


Total weight
23776.287 Da
Max. entity weight
5944.072 Da
Source organism
Influenza B virus (B/Maryland/1/2001)
Exptl. method
NMR
Refine. method
simulated annealing
Data set
assigned_chemical_shifts
Chem. Shift Complete
Sequence coverage: 80.4 %, Completeness: 62.2 %, Completeness (bb): 65.8 % Detail

Polymer type: polypeptide(L)

Total13C15N
All62.2 % (191 of 307)65.3 % (164 of 251)48.2 % (27 of 56)
Backbone65.8 % (131 of 199)70.0 % (105 of 150)53.1 % (26 of 49)
Sidechain62.8 % (98 of 156)65.1 % (97 of 149)14.3 % (1 of 7)
Aromatic46.7 % (14 of 30)44.8 % (13 of 29)100.0 % (1 of 1)
Methyl76.7 % (23 of 30)76.7 % (23 of 30)

1. entity 1

MFEPFQILSI CSFILSALHF MAWTIGHLNQ IKRGVNMKIR IKGPNKETIN R

Sample #1

Solvent system aqueous buffer, Pressure 1 (±0.05) atm, Temperature 285 (±5) K, pH 7.5 (±0.2), Details 0.26 mg/uL [U-13C; U-15N] Influenza B M2 Proton Channel, 0.48 mg/uL POPE, aqueous buffer


#NameIsotope labelingTypeConcentration
1Influenza B M2 Proton Channel[U-13C; U-15N]0.26 (±0.02) mg/uL
2POPEnatural abundance0.48 (±0.05) mg/uL
Sample #2

Solvent system aqueous buffer, Pressure 1 (±0.05) atm, Temperature 285 (±5) K, pH 7.5 (±0.2), Details 0.13 mg/uL [U-13C; U-15N] and 4-19F-F5, 4-19F-F20 Influenza B M2 Proton Channel, 0.39 mg/uL POPE, aqueous buffer


#NameIsotope labelingTypeConcentration
3Influenza B M2 Proton Channel[U-13C; U-15N] and 4-19F-F5, 4-19F-F200.13 (±0.02) mg/uL
4POPEnatural abundance0.39 (±0.05) mg/uL

Protein Blocks Logo
Calculated from 10 models in PDB: 6PVR, Strand ID: A, B, C, D Detail


Release date
2019-07-28
Citation
Atomic structures of closed and open influenza B M2 proton channel reveal the conduction mechanism
Mandala, V.S., Loftis, A.R., Shcherbakov, A.S., Pentelute, B.L., Hong, M.
Nat. Struct. Mol. Biol. (2020), 27, 160-167, PubMed 32015551 , DOI 10.1038/s41594-019-0371-2 ,
Related entities 1. BM2 protein, : 1 : 1 : 1 : 5 entities Detail
Experiments performed 7 experiments Detail
Chemical shift validation 3 contents Detail
Keywords Closed State, Four Helix Bundle, Proton Channel, VIRAL PROTEIN