タイプ: Glycopeptide / クラス: 抗生剤 / 分子量: 1149.977 Da / 分子数: 2 / 由来タイプ: 合成 詳細: VANCOMYCIN IS A TRICYCLIC GLYCOPEPTIDE, GLYCOSYLATED BY A DISACCHARIDE (RESIDUES 8 AND 9) ON RESIDUE 4. 由来: (合成) AMYCOLATOPSIS ORIENTALIS (バクテリア) / 参照: NOR: NOR00681, Vancomycin
#2: 多糖
vancosamine-(1-2)-beta-D-glucopyranose
タイプ: oligosaccharide, Glycopeptide / クラス: 抗生剤 / 分子量: 323.340 Da / 分子数: 2 / 由来タイプ: 組換発現 詳細: VANCOMYCIN IS A TRICYCLIC GLYCOPEPTIDE, GLYCOSYLATED BY A DISACCHARIDE (RESIDUES 8 AND 9) ON RESIDUE 4. 参照: Vancomycin
VANCOMYCIN IS A TRICYCLIC GLYCOPEPTIDE. THE SCAFFOLD IS A HEPTAPEPTIDE WITH THE CONFIGURATION D-D-L- ...VANCOMYCIN IS A TRICYCLIC GLYCOPEPTIDE. THE SCAFFOLD IS A HEPTAPEPTIDE WITH THE CONFIGURATION D-D-L-D-D-L-L. IT IS FURTHER GLYCOSYLATED BY A DISACCHARIDE MADE OF D-GLUCOSE AND VANCOSAMINE. HERE, VANCOMYCIN IS REPRESENTED BY GROUPING TOGETHER THE SEQUENCE (SEQRES) AND THE TWO LIGANDS (HET) BGC AND RER.
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実験情報
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実験
実験
手法: X線回折 / 使用した結晶の数: 2
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試料調製
結晶
マシュー密度: 2.9 Å3/Da / 溶媒含有率: 57.53 %
結晶化
pH: 4.6 詳細: CRYSTALS WERE GROWN BY MIXING EQUAL VOLUMES OF A 25 MG/ML VANCOMYCIN SOLUTION AND 2.2 M NACL, 0.1 M SODIUM ACETATE, PH 4.6 (RESERVOIR BUFFER) AND THEN SUSPENDING THIS DROP OVER THE RESERVOIR. ...詳細: CRYSTALS WERE GROWN BY MIXING EQUAL VOLUMES OF A 25 MG/ML VANCOMYCIN SOLUTION AND 2.2 M NACL, 0.1 M SODIUM ACETATE, PH 4.6 (RESERVOIR BUFFER) AND THEN SUSPENDING THIS DROP OVER THE RESERVOIR. CRYSTALS WERE GROWN AT 293 K., VAPOR DIFFUSION - HANGING DROP
結晶化
*PLUS
温度: 20 ℃ / 手法: 蒸気拡散法, ハンギングドロップ法
溶液の組成
*PLUS
ID
濃度
一般名
Crystal-ID
Sol-ID
化学式
1
12.5mg/ml
vancomycinhydrochloride
1
drop
2
1.1M
1
drop
NaCl
3
0.05M
sodiumacetate
1
drop
4
2.2M
1
reservoir
NaCl
5
0.1M
sodiumacetate
1
reservoir
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データ収集
回折
平均測定温度: 98 K
放射光源
由来: シンクロトロン / サイト: NSLS / ビームライン: X8C / 波長: 0.85
検出器
タイプ: ADSC / 検出器: CCD / 日付: 1996年4月1日
放射
単色(M)・ラウエ(L): M / 散乱光タイプ: x-ray
放射波長
波長: 0.85 Å / 相対比: 1
反射
解像度: 0.89→10 Å / Num. obs: 17899 / % possible obs: 85.8 % / Observed criterion σ(I): 2 / 冗長度: 12.8 % / Rsym value: 0.076 / Net I/σ(I): 100
反射 シェル
解像度: 0.89→0.95 Å / 冗長度: 5.6 % / Mean I/σ(I) obs: 31.5 / Rsym value: 0.143 / % possible all: 69.3
反射
*PLUS
Rmerge(I) obs: 0.076
反射 シェル
*PLUS
% possible obs: 69.3 % / Rmerge(I) obs: 0.143
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解析
ソフトウェア
名称
分類
SHELXL-93
モデル構築
SHELXL-93
精密化
MADNES
データ削減
PROCOR
データ削減
XSCALE
データスケーリング
SHELXL-93
位相決定
精密化
構造決定の手法: DIRECT METHODS / 解像度: 0.89→4 Å / Num. parameters: 2553 / Num. restraintsaints: 3647 / σ(F): 0 詳細: REFINEMENT WAS CARRIED OUT VS. F**2; SIMILAR 1,2 AND 1,3 DISTANCE RESTRAINTS WERE APPLIED TO THE TWO VANCOMYCIN MOLECULES. ALSO, RESTRAINTS WERE IMPOSED TO LIMIT DEVIATIONS OF RINGS AND ...詳細: REFINEMENT WAS CARRIED OUT VS. F**2; SIMILAR 1,2 AND 1,3 DISTANCE RESTRAINTS WERE APPLIED TO THE TWO VANCOMYCIN MOLECULES. ALSO, RESTRAINTS WERE IMPOSED TO LIMIT DEVIATIONS OF RINGS AND PEPTIDE BONDS FROM PLANARITY AND DIFFERENCES IN ALONG-BOND COMPONENTS OF ADPS. ADPS FOR SOLVENT WERE RESTRAINED TO BE APPROXIMATELY ISOTROPIC, AND ANTIBUMPING RESTRAINTS WERE USED TO PREVENT SOLVENT WATER MOLECULES FROM VIOLATING MINIMUM CONTACT DISTANCES. CONJUGATE GRADIENT LEAST SQUARES WAS USED FOR MOST OF THE REFINEMENT, WITH BLOCKED LEAST SQUARES AT THE END.
Rfactor
反射数
%反射
all
0.124
17899
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obs
0.124
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80 %
Refine analyze
Num. disordered residues: 3 / Occupancy sum hydrogen: 158 / Occupancy sum non hydrogen: 255.4