RESIDUE ASP 41 OF SNAP-25 N-TERMINAL DOMAIN (CHAIN C) WAS MUTATED TO CYS, AND LABELED WITH DY-C2 ...RESIDUE ASP 41 OF SNAP-25 N-TERMINAL DOMAIN (CHAIN C) WAS MUTATED TO CYS, AND LABELED WITH DY-C2 TAG IN SOME SAMPLES.
配列の詳細
THE SEQUENCES OF CHAIN C AND D MATCH ISOFORM 2 SEQUENCE WITH UNIPROT IDENTIFIER P60880-2.
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実験情報
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実験
実験
手法: 溶液NMR 詳細: This deposition includes five conformers of the synaptotagmin-1 C2B domain SNARE complex. This complex is highly dynamic under the solution conditions used in the measurement of pseudocontact ...詳細: This deposition includes five conformers of the synaptotagmin-1 C2B domain SNARE complex. This complex is highly dynamic under the solution conditions used in the measurement of pseudocontact shifts by NMR spectroscopy that provided the structural information for this analysis. Because of this highly dynamic nature, no single structure can be considered as 'the structure' of this complex under our conditions. The five conformers deposited must be considered as just a few of the many conformers that form the ensemble but illustrate the types of interactions between the synaptotagmin-1 C2B domain and the SNARE complex that mediate this dynamic binding mode.
NMR実験
Conditions-ID
Experiment-ID
Solution-ID
タイプ
1
1
1
2D 1H-15N HSQC
1
2
1
2D 1H-13C HMQC
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試料調製
詳細
タイプ: solution 内容: 30 uM [U-100% 13C; U-100% 15N] protein, 25 mM Tris-HCl, 125 mM KSCN, 1 mM CaCl2, 90% H2O/10% D2O Label: sample_1 / 溶媒系: 90% H2O/10% D2O
試料
濃度 (mg/ml)
構成要素
Isotopic labeling
Solution-ID
30uM
protein
[U-100% 13C; U-100% 15N]
1
25mM
Tris-HCl
naturalabundance
1
125mM
KSCN
naturalabundance
1
1mM
CaCl2
naturalabundance
1
試料状態
pH: 7.4 / 圧: ambient / 温度: 298 K
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NMR測定
NMRスペクトロメーター
タイプ
製造業者
モデル
磁場強度 (MHz)
Spectrometer-ID
Varian INOVA
Varian
INOVA
800
1
Varian INOVA
Varian
INOVA
600
2
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解析
NMR software
名称
バージョン
開発者
分類
NMRView
8.0.a15
Johnson, OneMoonScientific
データ解析
Numbat
0.991
ChristopheSchmitzandThomasHuber
データ解析
NAMD
2.7
KlausSchulten
精密化
GROMACS
vanGunsterenandBerendsen
精密化
PLUMED2
GiovanniBussi
精密化
ALMOST
AndreaCavalli
精密化
精密化
手法: molecular dynamics / ソフトェア番号: 3 詳細: MOLECULAR DYNAMICS SIMULATIONS WERE USED TO GENERATE STRUCTURES OF THE SYNAPTOTAGMIN-1 C2B DOMAIN-SNARE COMPLEX THAT COULD BE EVALUATED BASED ON HOW WELL THEY FIT THE MEASURED PSEUDOCONTACT ...詳細: MOLECULAR DYNAMICS SIMULATIONS WERE USED TO GENERATE STRUCTURES OF THE SYNAPTOTAGMIN-1 C2B DOMAIN-SNARE COMPLEX THAT COULD BE EVALUATED BASED ON HOW WELL THEY FIT THE MEASURED PSEUDOCONTACT SHIFTS. SINCE IT WAS CLEAR FROM THE ANALYSIS THAT THE COMPLEX IS HIGHLY DYNAMICS AND NO SINGLE STRUCTURE CAN FIT ALL THE DATA, THE STRUCTURES FROM THE SIMULATIONS WERE USED TO TRY TO FIT THE MEASURED PSEUDOCONTACT SHIFTS AS ENSEMBLED-AVERAGED VALUES. THE STRUCTURES IN THE DEPOSITION ARE AMONG THOSE THAT CONTRIBUTED TO THE BEST ENSEMBLE-AVERAGE FITS.
代表構造
選択基準: all these conformers contribute to this dynamics ensemble
NMRアンサンブル
コンフォーマー選択の基準: Contribution to fit PCS data 計算したコンフォーマーの数: 10000 / 登録したコンフォーマーの数: 5