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Solution structure of the insecticidal spider-venom peptide Aps III
Authors
King, G.F., Bende, N.S., Mobli, M.
Assembly
As1a
Entity
1. As1a (polymer, Thiol state: all disulfide bound), 38 monomers, 3856.307 Da Detail

SCNSKGTPCT NADECCGGKC AYNVWNCIGG GCSKTCGY


Formula weight
3856.307 Da
Entity Connection
disulfide 3 Detail

IDTypeValue orderAtom ID 1Atom ID 2
1disulfidesing1:CYS2:SG1:CYS16:SG
2disulfidesing1:CYS9:SG1:CYS20:SG
3disulfidesing1:CYS15:SG1:CYS36:SG

Source organism
Apomastus schlingeri
Exptl. method
solution NMR
Refine. method
torsion angle dynamics
Data set
assigned_chemical_shifts
Chem. Shift Complete
Sequence coverage: 100.0 %, Completeness: 97.6 %, Completeness (bb): 96.5 % Detail

Polymer type: polypeptide(L)

Total1H13C15N
All97.6 % (365 of 374)98.4 % (189 of 192)97.1 % (136 of 140)95.2 % (40 of 42)
Backbone96.5 % (218 of 226)97.6 % (80 of 82)96.3 % (103 of 107)94.6 % (35 of 37)
Sidechain99.4 % (178 of 179)99.1 % (109 of 110)100.0 % (64 of 64)100.0 % (5 of 5)
Aromatic100.0 % (28 of 28)100.0 % (14 of 14)100.0 % (13 of 13)100.0 % (1 of 1)
Methyl100.0 % (18 of 18)100.0 % (9 of 9)100.0 % (9 of 9)

1. As1a

SCNSKGTPCT NADECCGGKC AYNVWNCIGG GCSKTCGY

Sample #1

Solvent system 95% H2O/5% D2O, Pressure 1 atm, Temperature 298 K, pH 6.0


#NameIsotope labelingTypeConcentration
1As1a[U-100% 13C; U-100% 15N]450 uM
2sodium phosphatenatural abundance20 mM
3H2Onatural abundance95 %
4D2Onatural abundance5 %
Sample #2

Solvent system 100% D2O, Pressure 1 atm, Temperature 298 K, pH 6.0


#NameIsotope labelingTypeConcentration
5As1a[U-100% 13C; U-100% 15N]450 uM
6sodium phosphatenatural abundance20 mM
7D2Onatural abundance100 %

Protein Blocks Logo
Calculated from 20 models in PDB: 2M36, Strand ID: A Detail


Release date
2013-03-24
Citation 1
Identification of insecticidal peptides from venom of the trap-door spider, Aptostichus schlingeri (Ctenizidae)
Skinner, W.S., Dennis, P.A., Li, J.P., Quistad, G.ZB.
Toxicon. (1992), 30, 1043-1050, PubMed 1440641 , DOI: ,
Citation 2
The insecticidal neurotoxin Aps III is an atypical knottin peptide that potently blocks insect voltage-gated sodium channels
Bende, N.S., Kang, E., Herzig, V., Mobli, M., Bosmans, F., Nicholson, G.M., King, G.F.
Biochem. Pharmacol. (2013), 85, 1542-1554, PubMed 23473802 , DOI 10.1016/j.bcp.2013.02.030 ,
Entries sharing articles Swiss-Prot: 6 entries Detail
  Swiss-Prot: P49267 released on 1996-02-01
    Title TXP1_APOSC Entity U1-cyrtautoxin-As1a
  Swiss-Prot: P49268 released on 1996-02-01
    Title TXP3_APOSC Entity Mu-cyrtautoxin-As1a
  Swiss-Prot: P49269 released on 1996-02-01
    Title TXP4_APOSC Entity U1-cyrtautoxin-As1b
  Swiss-Prot: P49270 released on 1996-02-01
    Title TXP6_APOSC Entity U1-cyrtautoxin-As1c
  Swiss-Prot: P49271 released on 1996-02-01
    Title TXP7_APOSC Entity U3-cyrtautoxin-As1a
  Swiss-Prot: P49272 released on 1996-02-01
    Title TXP9_APOSC Entity U1-cyrtautoxin-As1d
Related entities 1. As1a, : 1 : 1 : 3 entities Detail
Experiments performed 9 experiments Detail
NMR combined restraints 4 contents Detail
Keywords Asp III, inhibitor cystine knot, insect toxin, mu-CUTX-As1a, voltage-gated sodium channel