Search

An NMR Conformational Analysis of Synthetic Peptide Cn2(1-15)NH2-S-S-AcetylCn2(52-66)NH2 from the New World Centruroides Noxius 2(Cn2) Scorpion Toxin. Comparison of the Structure with those of the Centruroides Scorpion Toxins.
Authors
Yamamoto, H., Sejbal, J., York, E., Stewart, J.M., Possani, L.D., Kotovych, G.
Assembly
Cn2(1-15)NH2-S-S-AcetylCn2(52-66)NH2
Entity
1. Cn2(1-15)NH2 (polymer, Thiol state: all disulfide bound), 16 monomers, 1743.957 Da Detail

KEGYLVDKNT GCKYQX


2. Ac-Cn2(52-66)NH2 (polymer, Thiol state: all disulfide bound), 15 monomers, 1845.126 Da Detail

XEQAIVWPLP NKRCX


Total weight
3589.083 Da
Max. entity weight
1845.126 Da
Entity Connection
disulfide 1 Detail

IDTypeValue orderAtom ID 1Atom ID 2
1disulfidesing1:CYS12:SG2:CYS14:SG

Source organism
Centruroides noxius
Exptl. method
NMR
Data set
assigned_chemical_shifts, coupling_constants
Chem. Shift Complete1
Sequence coverage: 48.4 %, Completeness: 50.8 %, Completeness (bb): 57.1 % Detail

Polymer type: polypeptide(L)

Total1H
All50.8 % (94 of 185)50.8 % (94 of 185)
Backbone57.1 % (32 of 56)57.1 % (32 of 56)
Sidechain48.1 % (62 of 129)48.1 % (62 of 129)
Aromatic57.1 % (8 of 14)57.1 % (8 of 14)
Methyl41.7 % (5 of 12)41.7 % (5 of 12)

1. Cn2(1-15)NH2

KEGYLVDKNT GCKYQX

2. Ac-Cn2(52-66)NH2

XEQAIVWPLP NKRCX

Sample

Temperature 298 (±0.5) K, pH 5.5 (±0.2)


#NameIsotope labelingTypeConcentration
1Cn2(1-15)NH25.0 mM
2Ac-Cn2(52-66)NH25.0 mM

Chem. Shift Complete2
Sequence coverage: 41.9 %, Completeness: 47.8 %, Completeness (bb): 50.0 % Detail

Polymer type: polypeptide(L)

Total1H
All47.8 % (177 of 370)47.8 % (177 of 370)
Backbone50.0 % (56 of 112)50.0 % (56 of 112)
Sidechain46.9 % (121 of 258)46.9 % (121 of 258)
Aromatic28.6 % (8 of 28)28.6 % (8 of 28)
Methyl50.0 % (12 of 24)50.0 % (12 of 24)

1. Cn2(1-15)NH2

KEGYLVDKNT GCKYQX

2. Ac-Cn2(52-66)NH2

XEQAIVWPLP NKRCX

Sample

Temperature 298 (±0.5) K, pH 5.5 (±0.2)


#NameIsotope labelingTypeConcentration
1Cn2(1-15)NH25.0 mM
2Ac-Cn2(52-66)NH25.0 mM

Coupling constant
21 J values in 2 lists
Temperature 298 (±0.5) K, pH 5.5 (±0.2) Detail
Release date
1998-09-16
Citation 1
An NMR Conformational Analysis of Synthetic Peptide Cn2(1-15)NH2-S-S-AcetylCn2(52-66)NH2 from the New World Centruroides Noxius 2(Cn2) Scorpion Toxin. Comparison of the Structure with those of the Centruroides Scorpion Toxins
Yamamoto, H., Sejbal, J., York, E., Stewart, J.M., Possani, L.D., Kotovych, G.
Biopolymers (1999), 49, 277-286, PubMed , DOI:
Citation 2
1H, 13C and 15N chemical shift referencing in biomolecular NMR
Wishart, D.S., Bigam, C.G., Yao, J., Abildgaard, F., Dyson, H.J., Oldfield, E., Markley, J.L., Sykes, B.D.
J. Biomol. NMR (1995), 6, 135-140, PubMed 8589602 , DOI 10.1007/bf00211777 ,
Related entities 1. Cn2(1-15)NH2, : 53 entities Detail
Experiments performed 3 experiments Detail
Chemical shift validation 5 contents Detail