AMINOPEPTIDASE P IS A HOMOTETRAMER IN SOLUTION. HOWEVER,SINCE IN THIS ENTRY, EACH CHAIN OF THIS PROTEIN IS INCOMPLEX WITH A TRIPEPTIDE , THIS ENTRY IS CLASSIFIEDAS A HETEROOCTAMER.
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要素
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タンパク質 / タンパク質・ペプチド , 2種, 8分子 ABCDEFGH
#1: タンパク質
XAA-PROAMINOPEPTIDASE / X-PRO AMINOPEPTIDASE / AMINOPEPTIDASE P II / APP-II / AMINOACYLPROLINE AMINOPEPTIDASE / AMINOPEPTIDASE P
分子量: 327.419 Da / 分子数: 4 / 由来タイプ: 合成 詳細: THE PEPTIDE VAL-PRO-LEU (10 MM) WAS SOAKED INTO THE CRYSTALS. THE PEPTIDE WAS CLEAVED BY AMINOPEPTIDASE P, BUT ONE OF THE PRODUCTS (PRO-LEU) REMAINED VISIBLE IN THE ACTIVE SITE 由来: (合成) synthetic construct (人工物)
CATALYSES THE RELEASE OF ANY N-TERMINAL AMINO ACID, INCLUDING PROLINE, THAT IS LINKED WITH PROLINE, ...CATALYSES THE RELEASE OF ANY N-TERMINAL AMINO ACID, INCLUDING PROLINE, THAT IS LINKED WITH PROLINE, EVEN FROM A DIPEPTIDE OR TRIPEPTIDE.
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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: 1
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試料調製
結晶
マシュー密度: 4.4 Å3/Da / 溶媒含有率: 71.8 %
結晶化
手法: 蒸気拡散法, ハンギングドロップ法 / pH: 8.3 詳細: ROOM TEMPERATURE HANGING DROP WITH 16% PEG4K, 0.1 M TRIS (PH8.3), 0.2 M MGCL2. TRANSFERRED TO A DROP ABOVE CONDITIONS PLUS WITH 10 MM VAL-PRO-LEU PEPTIDE AND ALLOWED TO EQUILIBRATE OVERNIGHT., pH 8.30
解像度: 2→37.8 Å / Cor.coef. Fo:Fc: 0.973 / Cor.coef. Fo:Fc free: 0.964 / SU B: 5.503 / SU ML: 0.077 / TLS residual ADP flag: LIKELY RESIDUAL / 交差検証法: THROUGHOUT / ESU R: 0.101 / ESU R Free: 0.098 / 立体化学のターゲット値: MAXIMUM LIKELIHOOD 詳細: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. INSUFFICIENT ELECTRON DENSITY WAS AVAILABLE TO ALLOW COMPLETE MODELLING OF THE RESIDUES A440, B439, B440, C439, C440, D439, D440. RESIDUES ...詳細: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. INSUFFICIENT ELECTRON DENSITY WAS AVAILABLE TO ALLOW COMPLETE MODELLING OF THE RESIDUES A440, B439, B440, C439, C440, D439, D440. RESIDUES 185 AND 417 IN CHAINS B AND C SHOW CONCERTED MOVEMENT. ONLY ONE OF THE TWO ALTERNATE CONFORMERS OF RESIDUE 417 IN CHAINS B AND C ARE VISIBLE.
Rfactor
反射数
%反射
Selection details
Rfree
0.18
11297
5 %
RANDOM
Rwork
0.156
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obs
0.157
214328
97.9 %
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溶媒の処理
イオンプローブ半径: 0.8 Å / 減衰半径: 0.8 Å / VDWプローブ半径: 1.2 Å / 溶媒モデル: BABINET MODEL WITH MASK