Text: sample was studied in dark adapted state and after photo activation of rhodopsin by illuminating the sample for 60s with a focussed microscope light, chemical shifts of S2 peptide are identical ...Text: sample was studied in dark adapted state and after photo activation of rhodopsin by illuminating the sample for 60s with a focussed microscope light, chemical shifts of S2 peptide are identical in both states, TrNOEs and TrDCs are difference values between the dark and light-activated states. orientation of the bound peptide relative to the membrane normal was determined from residual dipolar couplings. the membrane normal that belongs to model 1 runs parallel to the y-axis of the coordinate frame in which the deposited s2 peptide coordinates are specified.
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試料調製
詳細
Solution-ID
内容
溶媒系
1
2.6mM S2 peptide U-15N, 0.063mM rhodopsin as part of intact disk membranes from bovine retina; buffer: 10 mM HEPES, 20mM KCl, 0.05mM DTPA
90% H2O/10% D2O
2
2.6mM S2 peptide U-15N, 13C, 0.063mM rhodopsin as part of intact disk membranes from bovine retina; buffer: 10 mM HEPES, 20mM KCl, 0.05mM DTPA
90% H2O/10% D2O
試料状態
イオン強度: 10 mM HEPES, 20 mM KCl / pH: 6.6 / 圧: ambient / 温度: 283 K
結晶化
*PLUS
手法: other / 詳細: NMR
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NMR測定
放射
プロトコル: SINGLE WAVELENGTH / 単色(M)・ラウエ(L): M
放射波長
相対比: 1
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
Bruker DMX
Bruker
DMX
750
1
Bruker DMX
Bruker
DMX
600
2
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解析
NMR software
名称
バージョン
開発者
分類
NMRPipe
2.1
Delaglio
解析
X-PLOR
NIH
A.T. Brunger
構造決定
X-PLOR
NIH
A.T. Brunger, N. Tjandra, C.D. Schwieters, J. Kuszewski, G.M. Clore
精密化
精密化
手法: simulated annealing, molecular dynamics / ソフトェア番号: 1 詳細: the structures are based on a total of 121 NOE-derived distance constraints, 12 NOE-derived dihedral angle restraints, and 38 residual dipolar couplings
代表構造
選択基準: lowest energy structure
NMRアンサンブル
コンフォーマー選択の基準: structures with the lowest energy 計算したコンフォーマーの数: 100 / 登録したコンフォーマーの数: 20