- PDB-3n5l: Crystal structure of a binding protein component of ABC phosphona... -
+
データを開く
IDまたはキーワード:
読み込み中...
-
基本情報
登録情報
データベース: PDB / ID: 3n5l
タイトル
Crystal structure of a binding protein component of ABC phosphonate transporter (PA3383) from Pseudomonas aeruginosa at 1.97 A resolution
要素
Binding protein component of ABC phosphonate transporter
キーワード
TRANSPORT PROTEIN / Structural Genomics / Joint Center for Structural Genomics / JCSG / Protein Structure Initiative / PSI-2 / ABC transport system / periplasmic phosphonate-binding
機能・相同性
機能・相同性情報
organic phosphonate transport / cell envelope / ATP-binding cassette (ABC) transporter complex / transmembrane transport 類似検索 - 分子機能
(1) THE CONSTRUCT (RESIDUES 26-334) WAS EXPRESSED WITH AN N-TERMINAL PURIFICATION TAG ...(1) THE CONSTRUCT (RESIDUES 26-334) 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. (2) DNA SEQUENCING OF THE CLONED CONSTRUCT SHOWS A MIXTURE OF BOTH "CCC" (PROLINE) AND "GCC" (ALANINE) AT THE POSITION CORRESPONDING TO RESIDUE 272. THE REST OF THE SEQUENCE TRACE IS CLEAN. A MIXTURE OF PROLINE AND ALANINE AT POSITION 272 IS CONSISTENT WITH THE MASS SPECTROMETRY PROFILE OF THE PURIFIED PROTEIN. HOWEVER, THE CRYSTAL APPEARS TO CONTAIN PREDOMINANTLY ALANINE AT POSITION 272 BASED ON THE ELECTRON DENSITY FIT AND CRYSTAL PACKING CONSTRAINTS. MICROHETEROGENEITY PRESENT AT POSITION 272 WAS NOT MODELED.
-
実験情報
-
実験
実験
手法: X線回折 / 使用した結晶の数: 1
-
試料調製
結晶
マシュー密度: 3.46 Å3/Da / 溶媒含有率: 64.42 %
結晶化
温度: 277 K / 手法: 蒸気拡散法, シッティングドロップ法 / pH: 7 詳細: 2.000000000M (NH4)2SO4, 0.200000000M Li2SO4, 0.1M TRIS pH 7.0, NANODROP, VAPOR DIFFUSION, SITTING DROP, temperature 277K
解像度: 1.97→49.445 Å / Num. obs: 68965 / % possible obs: 100 % / Observed criterion σ(I): -3 / Biso Wilson estimate: 25.138 Å2 / Rmerge(I) obs: 0.131 / Net I/σ(I): 12.37
反射 シェル
解像度 (Å)
Rmerge(I) obs
Mean I/σ(I) obs
Num. measured obs
Num. unique obs
Diffraction-ID
% possible all
1.97-2.05
0.966
2.1
56754
7646
1
100
2.05-2.12
0.725
2.8
42950
5795
1
100
2.12-2.21
0.562
3.7
47865
6421
1
100
2.21-2.31
0.443
4.7
44565
6028
1
100
2.31-2.43
0.346
5.9
44468
5961
1
100
2.43-2.58
0.291
7.1
44831
6018
1
100
2.58-2.78
0.224
9.1
45955
6185
1
100
2.78-3.06
0.149
13.1
45595
6130
1
100
3.06-3.5
0.086
20.8
45397
6132
1
100
3.5-4.4
0.051
31.9
45603
6221
1
100
4.4-49.445
0.046
35.2
46085
6513
1
99.8
-
位相決定
位相決定
手法: 多波長異常分散
-
解析
ソフトウェア
名称
バージョン
分類
NB
REFMAC
5.5.0110
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: 1.97→49.445 Å / Cor.coef. Fo:Fc: 0.965 / Cor.coef. Fo:Fc free: 0.949 / Occupancy max: 1 / Occupancy min: 0.3 / SU B: 5.02 / SU ML: 0.074 / 交差検証法: THROUGHOUT / σ(F): 0 / ESU R Free: 0.113 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 AUTOMATIC TLS ASSIGNMENT. 5. A UNKNOWN LIGAND (UNL), RESEMBLING GLYCEROL-3-PHOSPHATE WAS MODELED INTO THE BINDING SITE OF EACH MONOMER. THE PROTEIN IS A HOMOLOG OF PHND OF E. COLI, WHICH BINDS ALKYLPHOSPHONATE. ETHYLENE GLYCOL (EDO), SULFATE (SO4) AND CHLORIDE (CL) MODELED ARE PRESENT PROTEIN/CRYSTALLIZATION/CRYO BUFFER.
Rfactor
反射数
%反射
Selection details
Rfree
0.191
3488
5.1 %
RANDOM
Rwork
0.158
-
-
-
obs
0.16
68909
99.89 %
-
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: MASK