THE MODIFIED SEQUENCE PTTTPLK FRAGMENT WAS CHOSEN BECAUSE IT WAS RELEVANT TO STRUCTURE/FUNCTION ...THE MODIFIED SEQUENCE PTTTPLK FRAGMENT WAS CHOSEN BECAUSE IT WAS RELEVANT TO STRUCTURE/FUNCTION ANALYSIS OF POST TRANSLATIONAL GLYCOSYLATION OF MUC2, FOR WHICH IT WAS USED AS A MODEL SUBSTRATE. STUDIES ON IT AND ON O-GALNAC GLYCOSYLATED FORMS HAD BEEN CARRIED OUT USING SEVERAL POLYPEPTIDE GALNAC TRANSFERASE ISOFORMS.
配列の詳細
THE SEQUENCE PTTTP IS PART OF THE MUC2 MUCIN REPEAT POLYPEPTIDE PTTTPITTTTTVTPTPTPTGTQT.
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実験情報
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実験
実験
手法: 溶液NMR
NMR実験
Conditions-ID
Experiment-ID
Solution-ID
タイプ
1
1
2
2D 1H-1H NOESY
1
2
1
3D TOCSY-NOESY
1
3
1
2D 1H-15N HSQC
1
4
1
2D 1H-13C HSQC
1
5
1
2D 1H-1H TOCSY
1
6
2
2D 1H-1H COSY
1
7
1
2D 1H-13C HMBC
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試料調製
詳細
Solution-ID
内容
溶媒系
1
2-10 mM MUC2 Mucin Domain Peptide, 2-10 mM SUGAR (N-ACETYL-2-DEOXY-2-AMINO-GALACTOSE), 2-10 mM SUGAR (N-ACETYL-2-DEOXY-2-AMINO-GALACTOSE), 2-10 mM SUGAR (N-ACETYL-2-DEOXY-2-AMINO-GALACTOSE), 90% H2O/10% D2O
90% H2O/10% D2O
2
2-10 mM MUC2 Mucin Domain Peptide, 2-10 mM SUGAR (N-ACETYL-2-DEOXY-2-AMINO-GALACTOSE), 2-10 mM SUGAR (N-ACETYL-2-DEOXY-2-AMINO-GALACTOSE), 2-10 mM SUGAR (N-ACETYL-2-DEOXY-2-AMINO-GALACTOSE), 100% D2O
100% D2O
試料
単位
構成要素
Conc. range (mg/ml)
Solution-ID
mM
MUC2 Mucin Domain Peptide-1
2-10
1
mM
SUGAR (N-ACETYL-2-DEOXY-2-AMINO-GALACTOSE)-2
2-10
1
mM
SUGAR (N-ACETYL-2-DEOXY-2-AMINO-GALACTOSE)-3
2-10
1
mM
SUGAR (N-ACETYL-2-DEOXY-2-AMINO-GALACTOSE)-4
2-10
1
mM
MUC2 Mucin Domain Peptide-5
2-10
2
mM
SUGAR (N-ACETYL-2-DEOXY-2-AMINO-GALACTOSE)-6
2-10
2
mM
SUGAR (N-ACETYL-2-DEOXY-2-AMINO-GALACTOSE)-7
2-10
2
mM
SUGAR (N-ACETYL-2-DEOXY-2-AMINO-GALACTOSE)-8
2-10
2
試料状態
pH: 4.5 / 圧: ambient / 温度: 288 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
600
1
Varian INOVA
Varian
INOVA
800
2
Varian INOVA
Varian
INOVA
900
3
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解析
NMR software
名称
開発者
分類
CNS
BrungerA. T. et.al.
構造決定
XPLOR-NIH
Schwieters, Kuszewski, TjandraandClore
精密化
精密化
手法: torsion space simulated annealing / ソフトェア番号: 1
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 least restraint violations 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: 39 / Maximum distance constraint violation: 0.25 Å / Maximum torsion angle constraint violation: 5 °