Search

Solution structure of the analgesic sea anemone peptide APETx2
Authors
Mobli, M., King, G.F., Rosengren, J.K., Jensen, J.E.
Assembly
analgesic sea anemone peptide APETx2
Entity
1. analgesic sea anemone peptide APETx2 (polymer, Thiol state: all disulfide bound), 42 monomers, 4567.086 Da Detail

GTACSCGNSK GIYWFYRPSC PTDRGYTGSC RYFLGTCCTP AD


Formula weight
4567.086 Da
Source organism
Anthopleura elegantissima
Exptl. method
solution NMR
Refine. method
torsion angle dynamics
Data set
assigned_chemical_shifts
Chem. Shift Complete
Sequence coverage: 97.6 %, Completeness: 97.8 %, Completeness (bb): 96.6 % Detail

Polymer type: polypeptide(L)

Total1H
All97.8 % (225 of 230)97.8 % (225 of 230)
Backbone96.6 % (84 of 87)96.6 % (84 of 87)
Sidechain98.6 % (141 of 143)98.6 % (141 of 143)
Aromatic93.8 % (30 of 32)93.8 % (30 of 32)
Methyl100.0 % (11 of 11)100.0 % (11 of 11)

1. APETx2

GTACSCGNSK GIYWFYRPSC PTDRGYTGSC RYFLGTCCTP AD

Sample

Solvent system 95% H2O/5% D2O, Pressure 1 atm, Temperature 298 K, pH 6


#NameIsotope labelingTypeConcentration
1APETx2natural abundance300 uM
2potassium phosphatenatural abundance20 mM
3H2Onatural abundance95 %
4D2O[U-99% 2H]5 %

Protein Blocks Logo
Calculated from 20 models in PDB: 2MUB, Strand ID: A Detail


Release date
2014-12-21
Citation 1
Understanding the molecular basis of toxin promiscuity: the analgesic sea anemone peptide APETx2 interacts with acid-sensing ion channel 3 and hERG channels via overlapping pharmacophores
Jensen, J.E., Cristofori-Armstrong, B., Anangi, R., Rosengren, J.K., Lau, C., Mobli, M., Brust, A., Alewood, P.F., King, G.F., Rash, L.D.
J. Med. Chem. (2014), 57, 9195-9203, PubMed 25337890 , DOI 10.1021/jm501400p ,
Citation 2
Solution structure of APETx2, a specific peptide inhibitor of ASIC3 proton-gated channels
Chagot, B., Escoubas, P., Diochot, S., Bernard, C., Lazdunski, M., Darbon, H.
Protein Sci. (2005), 14, 2003-2010, PubMed 15987885 , DOI 10.1110/ps.051378905 ,
Entries sharing articles BMRB: 1, Swiss-Prot: 1 entries Detail
  BMRB: 6467 released on 2005-01-20
    Title Solution structure of APETx2, a specific peptide inhibitor of ASIC3 proton-gated channels
  Swiss-Prot: P61542 released on 2004-05-24
    Title APT2_ANTEL Entity Toxin APETx2
Related entities 1. analgesic sea anemone peptide APETx2, : 1 : 2 : 26 entities Detail
Experiments performed 5 experiments Detail
NMR combined restraints 5 contents Detail
Keywords Toxin, Sea anemone, Disulfide-rich, Peptide, Defensin fold