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Structural characterization of novel conotoxin MIIIB derived from Conus magus
Authors
Loening, N.M.
Assembly
Conotoxin MIIIB
Entity
1. Conotoxin MIIIB (polymer, Thiol state: all disulfide bound), 23 monomers, 2454.873 Da Detail

MCCGEGSSCP KYFRNSQICH CCX


Formula weight
2454.873 Da
Entity Connection
disulfide 3 Detail

IDTypeValue orderAtom ID 1Atom ID 2
1disulfidesing1:CYS2:SG1:CYS22:SG
2disulfidesing1:CYS3:SG1:CYS19:SG
3disulfidesing1:CYS9:SG1:CYS21:SG

Source organism
Conus magus
Exptl. method
solution NMR
Refine. method
simulated annealing
Data set
assigned_chemical_shifts
Chem. Shift Complete
Sequence coverage: 95.7 %, Completeness: 85.3 %, Completeness (bb): 76.2 % Detail

Polymer type: polypeptide(L)

Total1H13C15N
All85.3 % (203 of 238)95.2 % (119 of 125)71.9 % (64 of 89)83.3 % (20 of 24)
Backbone76.2 % (99 of 130)95.6 % (43 of 45)60.9 % (39 of 64)81.0 % (17 of 21)
Sidechain96.9 % (124 of 128)95.0 % (76 of 80)100.0 % (45 of 45)100.0 % (3 of 3)
Aromatic100.0 % (22 of 22)100.0 % (11 of 11)100.0 % (11 of 11)
Methyl100.0 % (4 of 4)100.0 % (2 of 2)100.0 % (2 of 2)

1. entity 1

MCCGEGSSCP KYFRNSQICH CCX

Sample

Solvent system 95% H2O/5% D2O, Pressure 1 atm, Temperature 298 K, pH 3.8, Details 2 mM MIIIB Isomer F, 0.5 mM DSS, 95% H2O/5% D2O


#NameIsotope labelingTypeConcentration
1MIIIB Isomer Fnatural abundance2 mM
2DSSnatural abundance0.5 mM

Protein Blocks Logo
Calculated from 20 models in PDB: 6VY7, Strand ID: A Detail


Release date
2020-05-05
Citation
Discovery and characterization of novel conotoxin MIIIB derived from Conus magus: The expansion of conotoxin diversity
Zhang, R.Y., Espirtu, M.J., Loening, N.M., Kapono, C.A., Bingham, J.P.
Related entities 1. Conotoxin MIIIB, : 1 : 3 entities Detail
Experiments performed 4 experiments Detail
Chemical shift validation 3 contents Detail
Keywords TOXIN, venom peptide