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The clavanin peptide in the presence of TFE (2,2,2-trifluoroethanol), presented a amphipathic alpha-helices from Phe-2 to Val-22 residues
Authors
Alves, E.S.F., Liao, L.M.
Assembly
Clavanin-A
Entity
1. Clavanin-A (polymer, Thiol state: not present), 24 monomers, 2665.079 Da Detail

VFQFLGKIIH HVGNFVHGFS HVFX


Formula weight
2665.079 Da
Source organism
Styela clava
Exptl. method
solution NMR
Refine. method
simulated annealing
Data set
assigned_chemical_shifts, spectral_peak_list
Chem. Shift Complete
Sequence coverage: 95.8 %, Completeness: 79.1 %, Completeness (bb): 95.8 % Detail

Polymer type: polypeptide(L)

Total1H15N
All79.1 % (136 of 172)76.2 % (112 of 147)96.0 % (24 of 25)
Backbone95.8 % (69 of 72)95.9 % (47 of 49)95.7 % (22 of 23)
Sidechain67.0 % (67 of 100)66.3 % (65 of 98)100.0 % (2 of 2)
Aromatic15.2 % (5 of 33)15.2 % (5 of 33)
Methyl85.7 % (12 of 14)85.7 % (12 of 14)

1. entity 1

VFQFLGKIIH HVGNFVHGFS HVFX

Sample

Solvent system trifluoroethanol/water, Pressure 1 atm, Temperature 298 K, pH 4.3, Details 2 mM Clavanin A, 35 % [U-99% 2H] TFE, 10 % [U-99% 2H] D2O, 55 % H2O


#NameIsotope labelingTypeConcentration
1TFE[U-99% 2H]35 %
2D2O[U-99% 2H]10 %
3H2Onatural abundance55 %
4Clavanin Anatural abundance2 mM

Protein Blocks Logo
Calculated from 10 models in PDB: 6C41, Strand ID: A Detail


Release date
2018-01-30
Citation
Structural Studies of a Lipid-Binding Peptide from Tunicate Hemocytes with Anti-Biofilm Activity
Silva, O.N., Alves, E.S., de la Fuente-Nunez, C., Ribeiro, S.M., Mandal, S.M., Gaspar, D., Veiga, A.S., Castanho, M.A., Andrade, C.A., Nascimento, J.M., Fensterseifer, I.C., Porto, W.F., Correa, J.R., Hancock, R.E., Korpole, S., Oliveira, A.L., Liao, L.M., Franco, O.L.
Sci. Rep. (2016), 6, 27128-27128, PubMed 27292548 , DOI 10.1038/srep27128 ,
Related entities 1. Clavanin-A, : 1 : 1 : 4 entities Detail
Experiments performed 4 experiments Detail
NMR combined restraints 3 contents Detail
Keywords ANTIMICROBIAL PROTEIN, Antimicrobial peptides, biofilm