- PDB-3n0x: Crystal structure of an ABC-type branched-chain amino acid transp... -
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基本情報
登録情報
データベース: PDB / ID: 3n0x
タイトル
Crystal structure of an ABC-type branched-chain amino acid transporter (RPA4397) from Rhodopseudomonas palustris CGA009 at 1.50 A resolution
要素
Possible substrate binding protein of ABC transporter system
キーワード
TRANSPORT PROTEIN / Receptor family ligand binding region / Structural Genomics / Joint Center for Structural Genomics / JCSG / Protein Structure Initiative / PSI-2
機能・相同性
: / Leucine-binding protein domain / Periplasmic binding protein / Response regulator / Periplasmic binding protein-like I / Rossmann fold / 3-Layer(aba) Sandwich / Alpha Beta / Possible substrate binding protein of ABC transporter system
THIS CONSTRUCT (RESIDUES 16-388) WAS EXPRESSED WITH AN N-TERMINAL PURIFICATION TAG ...THIS CONSTRUCT (RESIDUES 16-388) WAS EXPRESSED WITH AN N-TERMINAL PURIFICATION TAG MGSDKIHHHHHHENLYFQG. THE TAG WAS REMOVED WITH TEV PROTEASE LEAVING ONLY A GLYCINE (0) FOLLOWED BY THE TARGET SEQUENCE.
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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: 2.12 Å3/Da / 溶媒含有率: 41.9 % 解説: DATA WERE SCALED USING XSCALE WITH FRIEDEL PAIRS KEPT AS SEPARATE WHEN COMPUTING R-SYM, COMPLETENESS AND
モノクロメーター: Single crystal Si(111) bent monochromator (ho rizontal focusing) プロトコル: MAD / 単色(M)・ラウエ(L): M / 散乱光タイプ: x-ray
放射波長
ID
波長 (Å)
相対比
1
0.91837
1
2
0.97949
1
3
0.97898
1
反射
解像度: 1.5→29.348 Å / Num. obs: 55240 / % possible obs: 96.6 % / Observed criterion σ(I): -3 / Biso Wilson estimate: 15.302 Å2 / Rmerge(I) obs: 0.043 / Net I/σ(I): 11.69
反射 シェル
解像度 (Å)
Rmerge(I) obs
Mean I/σ(I) obs
Num. measured obs
Num. unique obs
% possible all
1.5-1.55
0.441
1.7
18484
9643
94.6
1.55-1.62
0.325
2.3
22519
11656
96.4
1.62-1.69
0.251
3
19198
9927
96.7
1.69-1.78
0.19
4
20496
10590
96.9
1.78-1.89
0.129
5.7
20108
10387
97
1.89-2.04
0.078
9.1
20789
10720
96.8
2.04-2.24
0.054
13.1
19837
10234
96.8
2.24-2.56
0.039
17.5
20150
10420
96.8
2.56-3.23
0.026
24
20605
10671
97.2
3.23-29.348
0.018
36.2
20277
10494
96.5
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位相決定
位相決定
手法: 多波長異常分散
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解析
ソフトウェア
名称
バージョン
分類
NB
REFMAC
5.5.0109
精密化
PHENIX
精密化
SHELX
位相決定
MolProbity
3beta29
モデル構築
XSCALE
データスケーリング
PDB_EXTRACT
3.006
データ抽出
XDS
データ削減
SHELXD
位相決定
autoSHARP
位相決定
精密化
構造決定の手法: 多波長異常分散 / 解像度: 1.5→29.348 Å / Cor.coef. Fo:Fc: 0.975 / Cor.coef. Fo:Fc free: 0.964 / Occupancy max: 1 / Occupancy min: 0.25 / SU B: 2.697 / SU ML: 0.048 / 交差検証法: THROUGHOUT / σ(F): 0 / ESU R Free: 0.068 立体化学のターゲット値: MAXIMUM LIKELIHOOD WITH PHASES 詳細: 1. HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. 2. A MET-INHIBITION PROTOCOL WAS USED FOR SELENOMETHIONINE INCORPORATION DURING PROTEIN EXPRESSION. THE OCCUPANCY OF THE SE ATOMS IN THE ...詳細: 1. HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. 2. A MET-INHIBITION PROTOCOL WAS USED FOR SELENOMETHIONINE INCORPORATION DURING PROTEIN EXPRESSION. THE OCCUPANCY OF THE SE ATOMS IN THE MSE RESIDUES WAS REDUCED TO 0.75 FOR THE REDUCED SCATTERING POWER DUE TO PARTIAL S-MET INCORPORATION. 3. ATOM RECORD CONTAINS SUM OF TLS AND RESIDUAL B FACTORS. ANISOU RECORD CONTAINS SUM OF TLS AND RESIDUAL U FACTORS. 4. WATERS WERE EXCLUDED FROM TLS GROUPS. 5. GLYCEROL (GOL) FROM THE CRYOPROTECTANT SOLUTION HAS BEEN MODELED IN THE SOLVENT STRUCTURE.
Rfactor
反射数
%反射
Selection details
Rfree
0.172
2800
5.1 %
RANDOM
Rwork
0.148
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obs
0.149
55225
99.33 %
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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: 1.4 Å / 溶媒モデル: BABINET MODEL WITH MASK