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NMR structure of a monomeric mutant (A72R) of major ampullate spidroin 1 N-terminal domain
Authors
Jaudzems, K., Nordling, K., Landreh, M., Rising, A., Askarieh, G., Knight, S.D., Johansson, J.
Assembly
A72R
Entity
1. A72R (polymer, Thiol state: not present), 137 monomers, 14264.78 Da Detail

GSGNSHTTPW TNPGLAENFM NSFMQGLSSM PGFTASQLDD MSTIAQSMVQ SIQSLAAQGR TSPNKLQALN MRFASSMAEI AASEEGGGSL STKTSSIASA MSNAFLQTTG VVNQPFINEI TQLVSMFAQA GMNDVSA


Formula weight
14264.78 Da
Source organism
Euprosthenops australis
Exptl. method
solution NMR
Refine. method
torsion angle dynamics, simulated annealing
Data set
assigned_chemical_shifts
Chem. Shift Complete
Sequence coverage: 97.8 %, Completeness: 94.2 %, Completeness (bb): 94.2 % Detail

Polymer type: polypeptide(L)

Total1H13C15N
All94.2 % (1387 of 1473)93.8 % (708 of 755)94.7 % (534 of 564)94.2 % (145 of 154)
Backbone94.2 % (765 of 812)93.9 % (263 of 280)93.5 % (374 of 400)97.0 % (128 of 132)
Sidechain94.5 % (744 of 787)93.7 % (445 of 475)97.2 % (282 of 290)77.3 % (17 of 22)
Aromatic97.7 % (84 of 86)97.7 % (42 of 43)97.6 % (41 of 42)100.0 % (1 of 1)
Methyl95.5 % (128 of 134)95.5 % (64 of 67)95.5 % (64 of 67)

1. A72R

GSGNSHTTPW TNPGLAENFM NSFMQGLSSM PGFTASQLDD MSTIAQSMVQ SIQSLAAQGR TSPNKLQALN MRFASSMAEI AASEEGGGSL STKTSSIASA MSNAFLQTTG VVNQPFINEI TQLVSMFAQA GMNDVSA

Sample

Solvent system 95% H2O/5% D2O, Pressure 1 atm, Temperature 298 (±0.2) K, pH 7.0 (±0.1)


#NameIsotope labelingTypeConcentration
1A72R[U-99% 13C; U-99% 15N]1.4 (±0.2) mM
2sodium phosphatenatural abundance20 (±2.0) mM
3sodium chloridenatural abundance20 (±2.0) mM
4sodium azidenatural abundance0.03 (±0.005) %
5D2O[U-100% 2H]5 (±0.5) %
6H2Onatural abundance95 (±0.5) %

LACS Plot; CA
Referencing offset: -0.34 ppm, Outliers: 1 Detail
LACS Plot; CB
Referencing offset: -0.34 ppm, Outliers: 1 Detail
LACS Plot; HA
Referencing offset: 0.0 ppm, Outliers: 3 Detail
LACS Plot; CO
Referencing offset: -0.49 ppm, Outliers: 1 Detail
Protein Blocks Logo
Calculated from 20 models in PDB: 2LPI, Strand ID: A Detail


Release date
2012-06-25
Citation
pH-dependent dimerization of spider silk N-terminal domain requires relocation of a wedged tryptophan side chain
Jaudzems, K., Askarieh, G., Landreh, M., Nordling, K., Hedhammar, M., Jornvall, H., Rising, A., Knight, S.D., Johansson, J.
J. Mol. Biol. (2012), 422, 477-487, PubMed 22706024 , DOI 10.1016/j.jmb.2012.06.004 ,
Related entities 1. A72R, : 1 : 1 : 4 : 15 entities Detail
Experiments performed 8 experiments Detail
NMR combined restraints 3 contents Detail
Keywords STRUCTURAL PROTEIN