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Solution structure of a chymotrypsin inhibitor from the Taiwan cobra
Authors
Lin, Y., Ikeya, T., Liu, T., Chang, L.
Assembly
NACI
Entity
1. NACI (polymer, Thiol state: all disulfide bound), 57 monomers, 6391.006 Da Detail

RPRFCELAPS AGSCFAFVPS YYYNQYSNTC HSFTYSGCGG NANRFRTIDE CNRTCVG


Formula weight
6391.006 Da
Entity Connection
disulfide 3 Detail

IDTypeValue orderAtom ID 1Atom ID 2
1disulfidesing1:CYS5:SG1:CYS55:SG
2disulfidesing1:CYS14:SG1:CYS38:SG
3disulfidesing1:CYS30:SG1:CYS51:SG

Source organism
Naja atra
Exptl. method
solution NMR
Refine. method
minimization
Data set
assigned_chemical_shifts
Chem. Shift Complete
Sequence coverage: 94.7 %, Completeness: 86.2 %, Completeness (bb): 94.0 % Detail

Polymer type: polypeptide(L)

Total1H13C15N
All86.2 % (545 of 632)93.3 % (304 of 326)76.0 % (187 of 246)90.0 % (54 of 60)
Backbone94.0 % (316 of 336)93.1 % (108 of 116)95.2 % (158 of 166)92.6 % (50 of 54)
Sidechain80.2 % (279 of 348)93.3 % (196 of 210)59.8 % (79 of 132)66.7 % (4 of 6)
Aromatic43.6 % (41 of 94)87.2 % (41 of 47) 0.0 % (0 of 47)
Methyl93.8 % (30 of 32)100.0 % (16 of 16)87.5 % (14 of 16)

1. NACI

RPRFCELAPS AGSCFAFVPS YYYNQYSNTC HSFTYSGCGG NANRFRTIDE CNRTCVG

Sample

Solvent system 90% H2O/10% D2O, Pressure 1 atm, Temperature 295 K, pH 3.0


#NameIsotope labelingTypeConcentration
1NACI[U-13C; U-15N]1.5 mM

LACS Plot; CA
Referencing offset: 0.05 ppm, Outliers: 1 Detail
LACS Plot; CB
Referencing offset: 0.05 ppm, Outliers: 1 Detail
LACS Plot; HA
Referencing offset: 0.2 ppm, Outliers: 1 Detail
LACS Plot; CO
Referencing offset: 0.84 ppm, Outliers: 4 Detail
Protein Blocks Logo
Calculated from 20 models in PDB: 2M99, Strand ID: A Detail


Release date
2013-10-13
Citation
NMR solution structure of a Chymotrypsin inhibitor from the Taiwan cobra Naja naja atra
Lin, Y., Ikeya, T., Liu, T., Chang, L.
Molecules (2013), 18, 8906-8918, PubMed 23896616 , DOI 10.3390/molecules18088906 ,
Entries sharing articles Swiss-Prot: 1 entries Detail
  Swiss-Prot: Q5ZPJ7 released on 2009-06-16
    Title VKT_NAJAT Entity Kunitz-type serine protease inhibitor NACI
Related entities 1. NACI, : 1 : 1 : 355 entities Detail
Experiments performed 12 experiments Detail
NMR combined restraints 9 contents Detail
Keywords chymotrypsin inhibitor, NACI, Naja naja atra, NMR