溶液NMR / AUTOMATED METHODS WERE USED FOR BACKBONE CHEMICAL SHIFT ASSIGNMENT, ITERATIVE NOE REFINEMENT. FINAL STRUCTURES WERE OBTAINED BY MOLECULAR DYNAMICS IN EXPLICIT SOLVENT.
.338 mM [U-100% 13C; U-100% 15N] CXCL12/SDF1-alpha, .97 mM CXCR4, 90% H2O, 10% D2O
90% H2O/10% D2O
2
1.07 mM [U-100% 13C; U-100% 15N] CXCR4, 0.67 mM CXCL12/SDF1-alpha, 90% H2O, 10% D2O
90% H2O/10% D2O
試料
濃度 (mg/ml)
構成要素
Isotopic labeling
Solution-ID
.338mM
CXCL12/SDF1-alpha
[U-100% 13C; U-100% 15N]
1
.97mM
CXCR4
1
1.07mM
CXCR4
[U-100% 13C; U-100% 15N]
2
0.67mM
CXCL12/SDF1-alpha
2
試料状態
イオン強度: 21 / pH: 6.8 / 圧: AMBIENT / 温度: 308 K
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NMR測定
NMRスペクトロメーター
タイプ: Bruker DRX / 製造業者: Bruker / モデル: DRX / 磁場強度: 600 MHz
-
解析
NMR software
名称
バージョン
開発者
分類
CYANA
2.1
Guntert, MumenthalerandWuthrich
構造決定
XwinNMR
3.5
Bruker
collection
X-PLOR NIH
2.9.3
Schwieters, Kuszewski, TjandraandClore
精密化
NMRPipe
2004
Delaglio, Grzesiek, Vuister, Zhu, PfeiferandBax
解析
XEASY
1.3
Bartelsetal.
データ解析
SPSCAN
1.1.0
Glaser
peakpicking
GARANT
2.1
Bartels, Guntert, BilleterandWuthrich
chemicalshiftassignment
精密化
手法: AUTOMATED METHODS WERE USED FOR BACKBONE CHEMICAL SHIFT ASSIGNMENT, ITERATIVE NOE REFINEMENT. FINAL STRUCTURES WERE OBTAINED BY MOLECULAR DYNAMICS IN EXPLICIT SOLVENT. ソフトェア番号: 1 詳細: CXCL12/CXCR4 COMPLEX STRUCTURES ARE BASED ON A TOTAL OF 2092 NOE CONSTRAINTS (722 INTRA, 566 SEQUENTIAL, 238 MEDIUM, 420 LONG RANGE, 116 CXCL12 INTERMONOMER CONSTRAINTS (CXCL12 TO CXCL12), ...詳細: CXCL12/CXCR4 COMPLEX STRUCTURES ARE BASED ON A TOTAL OF 2092 NOE CONSTRAINTS (722 INTRA, 566 SEQUENTIAL, 238 MEDIUM, 420 LONG RANGE, 116 CXCL12 INTERMONOMER CONSTRAINTS (CXCL12 TO CXCL12), AND 86 INTERMOLECULAR CONSTRAINTS (CXCL12 TO CXCR4)) AND 128 PHI AND PSI DIHEDRAL ANGLE CONSTRAINTS. CONSTRAINT WERE IN ONE ASSIGNED AND VALIDATED IN ONE CXCL12/CXCR4 COMPLEX AND THEN DUPLICATED TO GENERATE A SYMMETRY RELATED CONSTRAINT IN THE SECOND COMPLEX. CONSTRAINT TOTALS LISTED ABOVE INCLUDE CONSTRAINTS FROM BOTH MONOMERS.
代表構造
選択基準: lowest energy
NMRアンサンブル
コンフォーマー選択の基準: target function / 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