- PDB-2k9b: Structure and membrane interactions of the antibiotic peptide der... -
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基本情報
登録情報
データベース: PDB / ID: 2k9b
タイトル
Structure and membrane interactions of the antibiotic peptide dermadistinctin K by multidimensional solution and oriented 15N and 31P solid-state NMR spectroscopy
分子量: 3156.699 Da / 分子数: 1 / 由来タイプ: 合成 詳細: the peptide was prepared by solid-phase synthesis using Fmoc chemistry 参照: UniProt: P83638
Has protein modification
Y
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実験情報
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実験
実験
手法: 溶液NMR 詳細: Structure of Dermadistinctin K (DD K) in DPC micelles
NMR実験
Conditions-ID
Experiment-ID
Solution-ID
タイプ
1
1
1
2D 1H-1H TOCSY
1
2
1
2D 1H-1H NOESY
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試料調製
詳細
内容: 2.0 mM dd k, 400 mM [U-2H] DPCd38, 400mM DPCd38/H2O / 溶媒系: 400mM DPCd38/H2O
試料
濃度 (mg/ml)
構成要素
Isotopic labeling
Solution-ID
2.0mM
ddk
1
400mM
DPCd38
[U-2H]
1
試料状態
pH: 6 / 圧: ambient / 温度: 318 K
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NMR測定
NMRスペクトロメーター
タイプ: Bruker Avance III / 製造業者: Bruker / モデル: AVANCE III / 磁場強度: 800 MHz
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解析
NMR software
名称
バージョン
開発者
分類
TopSpin
2
BrukerBiospin
collection
NMRPipe
Delaglio, Grzesiek, Vuister, Zhu, PfeiferandBax
解析
NMRView
Johnson, OneMoonScientific
chemicalshiftassignment
NMRView
Johnson, OneMoonScientific
データ解析
NMRView
Johnson, OneMoonScientific
peakpicking
X-PLOR NIH
Schwieters, Kuszewski, TjandraandClore
geometryoptimization
X-PLOR NIH
Schwieters, Kuszewski, TjandraandClore
構造決定
X-PLOR NIH
Schwieters, Kuszewski, TjandraandClore
精密化
ProcheckNMR
LaskowskiandMacArthur
データ解析
MOLMOL
Koradi, BilleterandWuthrich
データ解析
精密化
手法: simulated annealing / ソフトェア番号: 1 詳細: NOE INTENSITIES WERE CONVERTED INTO SEMI-QUANTITATIVE DISTANCE RESTRAINS. THE UPPER LIMITS OF THE DISTANCES RESTRAINS THUS OBTAINED WERE 2.8, 3.4 AND 5.0 A (STRONG, MEDIUM, AND WEAK NOES ...詳細: NOE INTENSITIES WERE CONVERTED INTO SEMI-QUANTITATIVE DISTANCE RESTRAINS. THE UPPER LIMITS OF THE DISTANCES RESTRAINS THUS OBTAINED WERE 2.8, 3.4 AND 5.0 A (STRONG, MEDIUM, AND WEAK NOES RESPECTIVELY). STRUCTURE CALCULATIONS WERE PERFORMED USING THE XPLOR-NIH SOFTWARE, VERSION 2.17.0 (SCHWIETERS ET AL., 2003). STARTING WITH THE EXTENDED STRUCTURE, 500 STRUCTURES WERE GENERATED USING A SIMULATED ANNEALING PROTOCOL. THIS WAS FOLLOWED BY 20000 STEPS OF SIMULATED ANNEALING AT 1000 K AND A SUBSEQUENT DECREASE IN TEMPERATURE IN 15000 STEPS IN THE FIRST SLOW-COOL ANNEALING STAGE.
NMR constraints
NOE constraints total: 270 / NOE intraresidue total count: 169 / NOE medium range total count: 31 / NOE sequential total count: 70
代表構造
選択基準: closest to the average
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: 500 / 登録したコンフォーマーの数: 20