Search

Influenza B M2 Proton Channel in the Open State - SSNMR Structure at pH 4.5
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: 88.2 %, Completeness: 73.3 %, Completeness (bb): 76.4 % Detail

Polymer type: polypeptide(L)

Total13C15N
All73.3 % (225 of 307)76.1 % (191 of 251)60.7 % (34 of 56)
Backbone76.4 % (152 of 199)80.0 % (120 of 150)65.3 % (32 of 49)
Sidechain73.7 % (115 of 156)75.8 % (113 of 149)28.6 % (2 of 7)
Aromatic56.7 % (17 of 30)58.6 % (17 of 29) 0.0 % (0 of 1)
Methyl86.7 % (26 of 30)86.7 % (26 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 4.5 (±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 4.5 (±0.2), Details 0.26 mg/uL [U-13C; U-15N] Influenza B M2 Proton Channel, 0.38 mg/uL POPC, 0.10 mg/uL POPG, aqueous buffer


#NameIsotope labelingTypeConcentration
3Influenza B M2 Proton Channel[U-13C; U-15N]0.26 (±0.02) mg/uL
4POPCnatural abundance0.38 (±0.05) mg/uL
5POPGnatural abundance0.10 (±0.02) mg/uL
Sample #3

Solvent system aqueous buffer, Pressure 1 (±0.05) atm, Temperature 285 (±5) K, pH 4.5 (±0.2), Details 0.13 mg/uL [U-13C; U-15N] and 4-19F-F5, 4-19F-F20 Influenza B M2 Proton Channel, 0.31 mg/uL POPC, 0.08 mg/uL POPG, aqueous buffer


#NameIsotope labelingTypeConcentration
6Influenza B M2 Proton Channel[U-13C; U-15N] and 4-19F-F5, 4-19F-F200.13 (±0.02) mg/uL
7POPCnatural abundance0.31 (±0.04) mg/uL
8POPGnatural abundance0.08 (±0.02) mg/uL

Protein Blocks Logo
Calculated from 10 models in PDB: 6PVT, 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 9 experiments Detail
Chemical shift validation 3 contents Detail
Keywords Closed State, Four Helix Bundle, Proton Channel, VIRAL PROTEIN